Development and Application of Methods and Materials for Monitoring New Organic Contaminants, Toxic Compounds and Heavy Metals

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Development and Application of Methods and Materials for Monitoring New Organic Contaminants, Toxic Compounds and Heavy Metals (en)
Развој и примена метода и материјала за мониторинг нових загађујућих и токсичних органских материја и тешких метала (sr)
Razvoj i primena metoda i materijala za monitoring novih zagađujućih i toksičnih organskih materija i teških metala (sr_RS)
Authors

Publications

Dissimilar sintered calcium phosphate dental inserts as dentine substitutes: Shear bond strength to restorative materials

Ayoub, Giuma; Ležaja-Zebić, Maja; Miletić, Vesna; Petrović, Rada; Veljović, Đorđe; Janaćković, Đorđe

(Wiley, Hoboken, 2020)

TY  - JOUR
AU  - Ayoub, Giuma
AU  - Ležaja-Zebić, Maja
AU  - Miletić, Vesna
AU  - Petrović, Rada
AU  - Veljović, Đorđe
AU  - Janaćković, Đorđe
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1046
AB  - The application of sintered calcium phosphate dental inserts in the central part of tooth cavities can reduce amount of embedded dental composite and polymerization shrinkage of final dental fillings. The aim of this study was to analyze comparatively physico-chemical and mechanical properties of dental inserts and shear bond strength (SBS) between three dissimilar hydroxyapatite-based dental inserts and different restorative materials, after application of different clinical protocols. Starting from two different hydroxyapatite nano powders and nanostructured stabilized zirconia (YSZ), monophasic two-step sintered dense HAp inserts (TSSHAp), biphasic single-step sintered controlled porous inserts (HAp/TCp), and single-step sintered reinforced HAp/YSZ inserts were processed and characterized. Obvious differences in the microstructure of inserts surface were visualized after etching with 37% phosphoric acid. Fracture toughness of sintered inserts was ranged between 1.01 and 1.85 MPam(1/2) (maximum value in the case of HAp/YSZ), while hardness values were in the range of 3.71-5.22 GPa (maximum value in the case of TSSHAp). Acid etching before application improved SBS between inserts and Maxcem compared to direct cement application. TSSHAp and HAP/TCp inserts showed comparable and relatively high SBS values, certainly higher compared to HAp/YSZ inserts. Slightly higher SBS values were measured in the case of TSSHAp insert group, and the highest mean SBS value of 18.51 MPa was determined between TSSHAp inserts and Filtek Z250_SBU following the "self-etch" protocol.
PB  - Wiley, Hoboken
T2  - Journal of Biomedical Materials Research Part B: Applied Biomaterials
T1  - Dissimilar sintered calcium phosphate dental inserts as dentine substitutes: Shear bond strength to restorative materials
DO  - 10.1002/jbm.b.34578
ER  - 
@article{
author = "Ayoub, Giuma and Ležaja-Zebić, Maja and Miletić, Vesna and Petrović, Rada and Veljović, Đorđe and Janaćković, Đorđe",
year = "2020",
abstract = "The application of sintered calcium phosphate dental inserts in the central part of tooth cavities can reduce amount of embedded dental composite and polymerization shrinkage of final dental fillings. The aim of this study was to analyze comparatively physico-chemical and mechanical properties of dental inserts and shear bond strength (SBS) between three dissimilar hydroxyapatite-based dental inserts and different restorative materials, after application of different clinical protocols. Starting from two different hydroxyapatite nano powders and nanostructured stabilized zirconia (YSZ), monophasic two-step sintered dense HAp inserts (TSSHAp), biphasic single-step sintered controlled porous inserts (HAp/TCp), and single-step sintered reinforced HAp/YSZ inserts were processed and characterized. Obvious differences in the microstructure of inserts surface were visualized after etching with 37% phosphoric acid. Fracture toughness of sintered inserts was ranged between 1.01 and 1.85 MPam(1/2) (maximum value in the case of HAp/YSZ), while hardness values were in the range of 3.71-5.22 GPa (maximum value in the case of TSSHAp). Acid etching before application improved SBS between inserts and Maxcem compared to direct cement application. TSSHAp and HAP/TCp inserts showed comparable and relatively high SBS values, certainly higher compared to HAp/YSZ inserts. Slightly higher SBS values were measured in the case of TSSHAp insert group, and the highest mean SBS value of 18.51 MPa was determined between TSSHAp inserts and Filtek Z250_SBU following the "self-etch" protocol.",
publisher = "Wiley, Hoboken",
journal = "Journal of Biomedical Materials Research Part B: Applied Biomaterials",
title = "Dissimilar sintered calcium phosphate dental inserts as dentine substitutes: Shear bond strength to restorative materials",
doi = "10.1002/jbm.b.34578"
}
Ayoub, G., Ležaja-Zebić, M., Miletić, V., Petrović, R., Veljović, Đ.,& Janaćković, Đ.. (2020). Dissimilar sintered calcium phosphate dental inserts as dentine substitutes: Shear bond strength to restorative materials. in Journal of Biomedical Materials Research Part B: Applied Biomaterials
Wiley, Hoboken..
https://doi.org/10.1002/jbm.b.34578
Ayoub G, Ležaja-Zebić M, Miletić V, Petrović R, Veljović Đ, Janaćković Đ. Dissimilar sintered calcium phosphate dental inserts as dentine substitutes: Shear bond strength to restorative materials. in Journal of Biomedical Materials Research Part B: Applied Biomaterials. 2020;.
doi:10.1002/jbm.b.34578 .
Ayoub, Giuma, Ležaja-Zebić, Maja, Miletić, Vesna, Petrović, Rada, Veljović, Đorđe, Janaćković, Đorđe, "Dissimilar sintered calcium phosphate dental inserts as dentine substitutes: Shear bond strength to restorative materials" in Journal of Biomedical Materials Research Part B: Applied Biomaterials (2020),
https://doi.org/10.1002/jbm.b.34578 . .
1
1

Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers

Milanović, Ivana; Milovanović, Petar; Antonijević, Đorđe; Dželetović, Bojan; Đurić, Marija; Miletić, Vesna

(Elsevier Science Inc, New York, 2020)

TY  - JOUR
AU  - Milanović, Ivana
AU  - Milovanović, Petar
AU  - Antonijević, Đorđe
AU  - Dželetović, Bojan
AU  - Đurić, Marija
AU  - Miletić, Vesna
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2474
AB  - Introduction: Open pores between endodontic sealer and root canal walls present potential niches for bacterial growth and migration pathways. The aim was to assess the internal and external porosity of calcium silicate-based sealers and to ascertain the long-term effect of storage in simulated body fluid on sealer porosity. Methods: Sixteen single-rooted teeth were filled with gutta-percha and 1 of 4 root canal sealers: BioRoot RCS, EndoSequence BC, MTA Fillapex, or AH Plus. Obturated roots, stored in Hank's balanced salt solution, were scanned after 7 days and after 6 months by using micro-computed tomography at an isotropic resolution of 9.9 mm. Total, open, and closed porosity were calculated in the coronal, middle, and apical thirds. Data were statistically analyzed by using general linear model and paired t test (alpha = 0.05). Results: Significantly higher percentage of open than closed porosity was found in all groups. Initially, significantly greater open and total porosity were found for MTA Fillapex than for AH Plus. After 6 months, the percentage of open and total porosity increased in BioRoot RCS and MTA Fillapex and decreased in AH Plus and EndoSequence BC. Both initially and after storage, coronal region of all sealers had significantly greater total porosity than middle and apical regions, which were comparable. Conclusions: None of the root fillings were void-free, with predominant open porosity persisting after long-term storage.
PB  - Elsevier Science Inc, New York
T2  - Journal of Endodontics
T1  - Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers
VL  - 46
IS  - 4
SP  - 515
EP  - 523
DO  - 10.1016/j.joen.2020.01.007
ER  - 
@article{
author = "Milanović, Ivana and Milovanović, Petar and Antonijević, Đorđe and Dželetović, Bojan and Đurić, Marija and Miletić, Vesna",
year = "2020",
abstract = "Introduction: Open pores between endodontic sealer and root canal walls present potential niches for bacterial growth and migration pathways. The aim was to assess the internal and external porosity of calcium silicate-based sealers and to ascertain the long-term effect of storage in simulated body fluid on sealer porosity. Methods: Sixteen single-rooted teeth were filled with gutta-percha and 1 of 4 root canal sealers: BioRoot RCS, EndoSequence BC, MTA Fillapex, or AH Plus. Obturated roots, stored in Hank's balanced salt solution, were scanned after 7 days and after 6 months by using micro-computed tomography at an isotropic resolution of 9.9 mm. Total, open, and closed porosity were calculated in the coronal, middle, and apical thirds. Data were statistically analyzed by using general linear model and paired t test (alpha = 0.05). Results: Significantly higher percentage of open than closed porosity was found in all groups. Initially, significantly greater open and total porosity were found for MTA Fillapex than for AH Plus. After 6 months, the percentage of open and total porosity increased in BioRoot RCS and MTA Fillapex and decreased in AH Plus and EndoSequence BC. Both initially and after storage, coronal region of all sealers had significantly greater total porosity than middle and apical regions, which were comparable. Conclusions: None of the root fillings were void-free, with predominant open porosity persisting after long-term storage.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Endodontics",
title = "Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers",
volume = "46",
number = "4",
pages = "515-523",
doi = "10.1016/j.joen.2020.01.007"
}
Milanović, I., Milovanović, P., Antonijević, Đ., Dželetović, B., Đurić, M.,& Miletić, V.. (2020). Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers. in Journal of Endodontics
Elsevier Science Inc, New York., 46(4), 515-523.
https://doi.org/10.1016/j.joen.2020.01.007
Milanović I, Milovanović P, Antonijević Đ, Dželetović B, Đurić M, Miletić V. Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers. in Journal of Endodontics. 2020;46(4):515-523.
doi:10.1016/j.joen.2020.01.007 .
Milanović, Ivana, Milovanović, Petar, Antonijević, Đorđe, Dželetović, Bojan, Đurić, Marija, Miletić, Vesna, "Immediate and Long-Term Porosity of Calcium Silicate-Based Sealers" in Journal of Endodontics, 46, no. 4 (2020):515-523,
https://doi.org/10.1016/j.joen.2020.01.007 . .
3
21
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19

Surface Modification of Dental Materials and Hard Tissues Using Nonthermal Atmospheric Plasma

Stasić, Jovana; Miletić, Vesna

(Springer, 2020)

TY  - CHAP
AU  - Stasić, Jovana
AU  - Miletić, Vesna
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2482
AB  - Research of nonthermal atmospheric plasma (NTAP) for dental applications has been increasing in recent years. This paper presents a literature review of potential use of NTAP for treatment of surfaces of dental materials and hard dental tissues. The aim of NTAP interaction with dental materials and tissues is surface modification for stable and durable material-to-material or material-to-tissue bonds. Reactive particles in NTAP and various mixtures of gasses increase hydrophilicity of material surface, which is known to be hydrophobic in implants, ceramics or dental composites, with or without roughness changes. Adhesion of cells to implant surface was shown to improve after NTAP treatment, thereby promoting successful osseointegration. Bonding ceramic materials to the prepared surfaces of teeth or fiber/metal posts was shown to improve after NTAP treatment. Hard dental tissues achieve primarily micromechanical bonds with composite materials using dental adhesives. Increased organic content in the form of collagen fibrils and residual water pose a problem for achieving adequate and long-term adhesive-dentin bonds. This problem has not been solved with current adhesive application protocols. It was recently shown that application of NTAP improves the hydrophilicity of dentin surface and changes its polarity, which can contribute to better distribution of adhesive resin and deeper penetration into the hybrid layer. Previous studies pointed to similar or better initial adhesive bonds with dentin. However, adhesive-dentin bonds are subject to degradation in the long-term also after NTAP treatment suggesting the need for further optimization of NTAP for application on dentin.
PB  - Springer
T2  - Lecture Notes in Networks & Systems
T1  - Surface Modification of Dental Materials and Hard Tissues Using Nonthermal Atmospheric Plasma
VL  - 90
SP  - 119
EP  - 138
DO  - 10.1007/978-3-030-30853-7_8
ER  - 
@inbook{
author = "Stasić, Jovana and Miletić, Vesna",
year = "2020",
abstract = "Research of nonthermal atmospheric plasma (NTAP) for dental applications has been increasing in recent years. This paper presents a literature review of potential use of NTAP for treatment of surfaces of dental materials and hard dental tissues. The aim of NTAP interaction with dental materials and tissues is surface modification for stable and durable material-to-material or material-to-tissue bonds. Reactive particles in NTAP and various mixtures of gasses increase hydrophilicity of material surface, which is known to be hydrophobic in implants, ceramics or dental composites, with or without roughness changes. Adhesion of cells to implant surface was shown to improve after NTAP treatment, thereby promoting successful osseointegration. Bonding ceramic materials to the prepared surfaces of teeth or fiber/metal posts was shown to improve after NTAP treatment. Hard dental tissues achieve primarily micromechanical bonds with composite materials using dental adhesives. Increased organic content in the form of collagen fibrils and residual water pose a problem for achieving adequate and long-term adhesive-dentin bonds. This problem has not been solved with current adhesive application protocols. It was recently shown that application of NTAP improves the hydrophilicity of dentin surface and changes its polarity, which can contribute to better distribution of adhesive resin and deeper penetration into the hybrid layer. Previous studies pointed to similar or better initial adhesive bonds with dentin. However, adhesive-dentin bonds are subject to degradation in the long-term also after NTAP treatment suggesting the need for further optimization of NTAP for application on dentin.",
publisher = "Springer",
journal = "Lecture Notes in Networks & Systems",
booktitle = "Surface Modification of Dental Materials and Hard Tissues Using Nonthermal Atmospheric Plasma",
volume = "90",
pages = "119-138",
doi = "10.1007/978-3-030-30853-7_8"
}
Stasić, J.,& Miletić, V.. (2020). Surface Modification of Dental Materials and Hard Tissues Using Nonthermal Atmospheric Plasma. in Lecture Notes in Networks & Systems
Springer., 90, 119-138.
https://doi.org/10.1007/978-3-030-30853-7_8
Stasić J, Miletić V. Surface Modification of Dental Materials and Hard Tissues Using Nonthermal Atmospheric Plasma. in Lecture Notes in Networks & Systems. 2020;90:119-138.
doi:10.1007/978-3-030-30853-7_8 .
Stasić, Jovana, Miletić, Vesna, "Surface Modification of Dental Materials and Hard Tissues Using Nonthermal Atmospheric Plasma" in Lecture Notes in Networks & Systems, 90 (2020):119-138,
https://doi.org/10.1007/978-3-030-30853-7_8 . .
1

Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives

Stasić, Jovana; Selaković, Nenad; Puač, Nevena; Miletić, Maja; Malović, Gordana; Petrović, Zoran Lj.; Veljović, Đorđe; Miletić, Vesna

(Springer Heidelberg, Heidelberg, 2019)

TY  - JOUR
AU  - Stasić, Jovana
AU  - Selaković, Nenad
AU  - Puač, Nevena
AU  - Miletić, Maja
AU  - Malović, Gordana
AU  - Petrović, Zoran Lj.
AU  - Veljović, Đorđe
AU  - Miletić, Vesna
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2535
AB  - ObjectivesThe study aims to evaluate the effects of non-thermal atmospheric plasma (NTAP) treatments on dentin wetting and surface free energy (SFE) and compare the effects of NTAP treatment, etch-and-rinse, and self-etch protocols for application of universal adhesives.Materials and methodsMid-coronal dentin of intact third molars was used to measure contact angles of distilled water, ethylene-glycol, and diiodomethane and calculate SFE following different NTAP preset treatments (feeding gas consisting of pure He, He + 1% O-2, He + 1.5% O-2), power input (1 or 3W), and tip-to-surface distance (2, 4, or 8mm). Contact angles of reference liquids and SFE of dentin following He + 1.5% O-2 at 3-W and 4-mm treatment was compared to phosphoric acid etching. Contact angles of Single Bond Universal (SBU; 3M ESPE) and Clearfil Universal Bond (CUB; Kuraray Noritake) were measured following NTAP, etch-and-rinse, and self-etch protocols.ResultsNTAP significantly reduced contact angles of reference liquids and increased dentin SFE compared to untreated dentin (p lt 0.05). O-2 intensified the effect of He NTAP (p lt 0.05). NTAP and phosphoric acid increased dentin polarity and Lewis base surface characteristics. Phosphoric acid increased contact angles of adhesives compared to the self-etch protocol (p lt 0.05). NTAP resulted in lower adhesive contact angles than phosphoric acid, the difference being statistically significant for CUB (p lt 0.05). Compared to the self-etch protocol, NTAP slightly reduced CUB contact angle but not that of SBU (p>0.05).ConclusionsHe NTAP with and without O-2 increased dentin wetting and SFE, surpassing the effect of phosphoric acid and lowering adhesive contact angles. NTAP produced no apparent micro-morphological changes on dentin surface comparable to acid etching.Clinical significanceNTAP treatment of dentin prior to adhesive application increases dentin wetting and surface free energy facilitating better adhesive distribution on dentin surface compared to phosphoric acid etching and similar to the self-etch application protocol.
PB  - Springer Heidelberg, Heidelberg
T2  - Clinical Oral Investigations
T1  - Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives
VL  - 23
IS  - 3
SP  - 1383
EP  - 1396
DO  - 10.1007/s00784-018-2563-2
ER  - 
@article{
author = "Stasić, Jovana and Selaković, Nenad and Puač, Nevena and Miletić, Maja and Malović, Gordana and Petrović, Zoran Lj. and Veljović, Đorđe and Miletić, Vesna",
year = "2019",
abstract = "ObjectivesThe study aims to evaluate the effects of non-thermal atmospheric plasma (NTAP) treatments on dentin wetting and surface free energy (SFE) and compare the effects of NTAP treatment, etch-and-rinse, and self-etch protocols for application of universal adhesives.Materials and methodsMid-coronal dentin of intact third molars was used to measure contact angles of distilled water, ethylene-glycol, and diiodomethane and calculate SFE following different NTAP preset treatments (feeding gas consisting of pure He, He + 1% O-2, He + 1.5% O-2), power input (1 or 3W), and tip-to-surface distance (2, 4, or 8mm). Contact angles of reference liquids and SFE of dentin following He + 1.5% O-2 at 3-W and 4-mm treatment was compared to phosphoric acid etching. Contact angles of Single Bond Universal (SBU; 3M ESPE) and Clearfil Universal Bond (CUB; Kuraray Noritake) were measured following NTAP, etch-and-rinse, and self-etch protocols.ResultsNTAP significantly reduced contact angles of reference liquids and increased dentin SFE compared to untreated dentin (p lt 0.05). O-2 intensified the effect of He NTAP (p lt 0.05). NTAP and phosphoric acid increased dentin polarity and Lewis base surface characteristics. Phosphoric acid increased contact angles of adhesives compared to the self-etch protocol (p lt 0.05). NTAP resulted in lower adhesive contact angles than phosphoric acid, the difference being statistically significant for CUB (p lt 0.05). Compared to the self-etch protocol, NTAP slightly reduced CUB contact angle but not that of SBU (p>0.05).ConclusionsHe NTAP with and without O-2 increased dentin wetting and SFE, surpassing the effect of phosphoric acid and lowering adhesive contact angles. NTAP produced no apparent micro-morphological changes on dentin surface comparable to acid etching.Clinical significanceNTAP treatment of dentin prior to adhesive application increases dentin wetting and surface free energy facilitating better adhesive distribution on dentin surface compared to phosphoric acid etching and similar to the self-etch application protocol.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Clinical Oral Investigations",
title = "Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives",
volume = "23",
number = "3",
pages = "1383-1396",
doi = "10.1007/s00784-018-2563-2"
}
Stasić, J., Selaković, N., Puač, N., Miletić, M., Malović, G., Petrović, Z. Lj., Veljović, Đ.,& Miletić, V.. (2019). Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives. in Clinical Oral Investigations
Springer Heidelberg, Heidelberg., 23(3), 1383-1396.
https://doi.org/10.1007/s00784-018-2563-2
Stasić J, Selaković N, Puač N, Miletić M, Malović G, Petrović ZL, Veljović Đ, Miletić V. Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives. in Clinical Oral Investigations. 2019;23(3):1383-1396.
doi:10.1007/s00784-018-2563-2 .
Stasić, Jovana, Selaković, Nenad, Puač, Nevena, Miletić, Maja, Malović, Gordana, Petrović, Zoran Lj., Veljović, Đorđe, Miletić, Vesna, "Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives" in Clinical Oral Investigations, 23, no. 3 (2019):1383-1396,
https://doi.org/10.1007/s00784-018-2563-2 . .
15
12
12

Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives

Stasić, Jovana; Selaković, Nenad; Puač, Nevena; Miletić, Maja; Malović, Gordana; Petrović, Zoran Lj.; Veljović, Đorđe; Miletić, Vesna

(Springer Heidelberg, Heidelberg, 2019)

TY  - JOUR
AU  - Stasić, Jovana
AU  - Selaković, Nenad
AU  - Puač, Nevena
AU  - Miletić, Maja
AU  - Malović, Gordana
AU  - Petrović, Zoran Lj.
AU  - Veljović, Đorđe
AU  - Miletić, Vesna
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2389
AB  - ObjectivesThe study aims to evaluate the effects of non-thermal atmospheric plasma (NTAP) treatments on dentin wetting and surface free energy (SFE) and compare the effects of NTAP treatment, etch-and-rinse, and self-etch protocols for application of universal adhesives.Materials and methodsMid-coronal dentin of intact third molars was used to measure contact angles of distilled water, ethylene-glycol, and diiodomethane and calculate SFE following different NTAP preset treatments (feeding gas consisting of pure He, He + 1% O-2, He + 1.5% O-2), power input (1 or 3W), and tip-to-surface distance (2, 4, or 8mm). Contact angles of reference liquids and SFE of dentin following He + 1.5% O-2 at 3-W and 4-mm treatment was compared to phosphoric acid etching. Contact angles of Single Bond Universal (SBU; 3M ESPE) and Clearfil Universal Bond (CUB; Kuraray Noritake) were measured following NTAP, etch-and-rinse, and self-etch protocols.ResultsNTAP significantly reduced contact angles of reference liquids and increased dentin SFE compared to untreated dentin (p lt 0.05). O-2 intensified the effect of He NTAP (p lt 0.05). NTAP and phosphoric acid increased dentin polarity and Lewis base surface characteristics. Phosphoric acid increased contact angles of adhesives compared to the self-etch protocol (p lt 0.05). NTAP resulted in lower adhesive contact angles than phosphoric acid, the difference being statistically significant for CUB (p lt 0.05). Compared to the self-etch protocol, NTAP slightly reduced CUB contact angle but not that of SBU (p>0.05).ConclusionsHe NTAP with and without O-2 increased dentin wetting and SFE, surpassing the effect of phosphoric acid and lowering adhesive contact angles. NTAP produced no apparent micro-morphological changes on dentin surface comparable to acid etching.Clinical significanceNTAP treatment of dentin prior to adhesive application increases dentin wetting and surface free energy facilitating better adhesive distribution on dentin surface compared to phosphoric acid etching and similar to the self-etch application protocol.
PB  - Springer Heidelberg, Heidelberg
T2  - Clinical Oral Investigations
T1  - Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives
VL  - 23
IS  - 3
SP  - 1383
EP  - 1396
DO  - 10.1007/s00784-018-2563-2
ER  - 
@article{
author = "Stasić, Jovana and Selaković, Nenad and Puač, Nevena and Miletić, Maja and Malović, Gordana and Petrović, Zoran Lj. and Veljović, Đorđe and Miletić, Vesna",
year = "2019",
abstract = "ObjectivesThe study aims to evaluate the effects of non-thermal atmospheric plasma (NTAP) treatments on dentin wetting and surface free energy (SFE) and compare the effects of NTAP treatment, etch-and-rinse, and self-etch protocols for application of universal adhesives.Materials and methodsMid-coronal dentin of intact third molars was used to measure contact angles of distilled water, ethylene-glycol, and diiodomethane and calculate SFE following different NTAP preset treatments (feeding gas consisting of pure He, He + 1% O-2, He + 1.5% O-2), power input (1 or 3W), and tip-to-surface distance (2, 4, or 8mm). Contact angles of reference liquids and SFE of dentin following He + 1.5% O-2 at 3-W and 4-mm treatment was compared to phosphoric acid etching. Contact angles of Single Bond Universal (SBU; 3M ESPE) and Clearfil Universal Bond (CUB; Kuraray Noritake) were measured following NTAP, etch-and-rinse, and self-etch protocols.ResultsNTAP significantly reduced contact angles of reference liquids and increased dentin SFE compared to untreated dentin (p lt 0.05). O-2 intensified the effect of He NTAP (p lt 0.05). NTAP and phosphoric acid increased dentin polarity and Lewis base surface characteristics. Phosphoric acid increased contact angles of adhesives compared to the self-etch protocol (p lt 0.05). NTAP resulted in lower adhesive contact angles than phosphoric acid, the difference being statistically significant for CUB (p lt 0.05). Compared to the self-etch protocol, NTAP slightly reduced CUB contact angle but not that of SBU (p>0.05).ConclusionsHe NTAP with and without O-2 increased dentin wetting and SFE, surpassing the effect of phosphoric acid and lowering adhesive contact angles. NTAP produced no apparent micro-morphological changes on dentin surface comparable to acid etching.Clinical significanceNTAP treatment of dentin prior to adhesive application increases dentin wetting and surface free energy facilitating better adhesive distribution on dentin surface compared to phosphoric acid etching and similar to the self-etch application protocol.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Clinical Oral Investigations",
title = "Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives",
volume = "23",
number = "3",
pages = "1383-1396",
doi = "10.1007/s00784-018-2563-2"
}
Stasić, J., Selaković, N., Puač, N., Miletić, M., Malović, G., Petrović, Z. Lj., Veljović, Đ.,& Miletić, V.. (2019). Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives. in Clinical Oral Investigations
Springer Heidelberg, Heidelberg., 23(3), 1383-1396.
https://doi.org/10.1007/s00784-018-2563-2
Stasić J, Selaković N, Puač N, Miletić M, Malović G, Petrović ZL, Veljović Đ, Miletić V. Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives. in Clinical Oral Investigations. 2019;23(3):1383-1396.
doi:10.1007/s00784-018-2563-2 .
Stasić, Jovana, Selaković, Nenad, Puač, Nevena, Miletić, Maja, Malović, Gordana, Petrović, Zoran Lj., Veljović, Đorđe, Miletić, Vesna, "Effects of non-thermal atmospheric plasma treatment on dentin wetting and surface free energy for application of universal adhesives" in Clinical Oral Investigations, 23, no. 3 (2019):1383-1396,
https://doi.org/10.1007/s00784-018-2563-2 . .
15
12
12

Color stability of bulk-fill and universal composite restorations with dissimilar dentin replacement materials

Miletić, Vesna; Marjanović, Jovana; Veljović, Đorđe; Stasić, Jovana; Petrović, Violeta

(Wiley, Hoboken, 2019)

TY  - JOUR
AU  - Miletić, Vesna
AU  - Marjanović, Jovana
AU  - Veljović, Đorđe
AU  - Stasić, Jovana
AU  - Petrović, Violeta
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2378
AB  - Objective To determine color changes in bulk-fill composite and universal composite restorations with dissimilar dentin replacement materials in extracted teeth after staining in red wine. Materials and Methods Cylindrical, 4 mm deep, class I cavities were prepared in 140 human molars. Bottom 2 mm was restored with Biodentine (Septodont), everX posterior (GC) or experimental HAP inserts. Each dentin replacement material was covered with a 2-mm layer of a universal composite Filtek Z250 or Z550 (3M ESPE) or Gradia Posterior (GC). Groups combining top composite layer and the underlying dentin replacement were designated as "composite_dentin replacement." Filtek Bulk Fill (3M ESPE) and Tetric EvoCeram Bulk Fill (Ivoclar Vivadent) were placed as a single 4-mm layer. Color measurements were performed using Vita Easyshade 4.0 (Vita Zahnfabrik) initially and after 48-hours storage in red wine at 37 degrees C. Results Color differences (Delta E-oo) ranged between 2.1 +/- 0.7 (Z250_HAP) and 7.8 +/- 1.1 (Z550_everX). EverX resulted in higher Delta E-oo of the overlying composite than HAP (P  lt  .001) and Biodentine (P = .006). Generally, Delta E-oo was affected more by decreasing lightness (Delta L ') than changes in chroma (Delta C '). Conclusions EverX resulted in higher Delta E-oo of the restoration than Biodentine and experimental HAP after staining in red wine. No significant differences in Delta E-oo may be expected in different composites with the same underlying dentin replacement material. The same was generally true for bulk-fill and universal composites. Clinical Significance Similar extent of color changes may be expected in bulk-fill and universal composites. Highly translucent everX might exhibit greater color differences irrespective of the capping composite than non-translucent materials. Clinicians have a wider choice of composite materials to cover a particular dentin replacement material, for example, everX or Biodentine, as similar color differences may be expected in various overlying composite brands.
PB  - Wiley, Hoboken
T2  - Journal of Esthetic & Restorative Dentistry
T1  - Color stability of bulk-fill and universal composite restorations with dissimilar dentin replacement materials
VL  - 31
IS  - 5
SP  - 520
EP  - 528
DO  - 10.1111/jerd.12529
ER  - 
@article{
author = "Miletić, Vesna and Marjanović, Jovana and Veljović, Đorđe and Stasić, Jovana and Petrović, Violeta",
year = "2019",
abstract = "Objective To determine color changes in bulk-fill composite and universal composite restorations with dissimilar dentin replacement materials in extracted teeth after staining in red wine. Materials and Methods Cylindrical, 4 mm deep, class I cavities were prepared in 140 human molars. Bottom 2 mm was restored with Biodentine (Septodont), everX posterior (GC) or experimental HAP inserts. Each dentin replacement material was covered with a 2-mm layer of a universal composite Filtek Z250 or Z550 (3M ESPE) or Gradia Posterior (GC). Groups combining top composite layer and the underlying dentin replacement were designated as "composite_dentin replacement." Filtek Bulk Fill (3M ESPE) and Tetric EvoCeram Bulk Fill (Ivoclar Vivadent) were placed as a single 4-mm layer. Color measurements were performed using Vita Easyshade 4.0 (Vita Zahnfabrik) initially and after 48-hours storage in red wine at 37 degrees C. Results Color differences (Delta E-oo) ranged between 2.1 +/- 0.7 (Z250_HAP) and 7.8 +/- 1.1 (Z550_everX). EverX resulted in higher Delta E-oo of the overlying composite than HAP (P  lt  .001) and Biodentine (P = .006). Generally, Delta E-oo was affected more by decreasing lightness (Delta L ') than changes in chroma (Delta C '). Conclusions EverX resulted in higher Delta E-oo of the restoration than Biodentine and experimental HAP after staining in red wine. No significant differences in Delta E-oo may be expected in different composites with the same underlying dentin replacement material. The same was generally true for bulk-fill and universal composites. Clinical Significance Similar extent of color changes may be expected in bulk-fill and universal composites. Highly translucent everX might exhibit greater color differences irrespective of the capping composite than non-translucent materials. Clinicians have a wider choice of composite materials to cover a particular dentin replacement material, for example, everX or Biodentine, as similar color differences may be expected in various overlying composite brands.",
publisher = "Wiley, Hoboken",
journal = "Journal of Esthetic & Restorative Dentistry",
title = "Color stability of bulk-fill and universal composite restorations with dissimilar dentin replacement materials",
volume = "31",
number = "5",
pages = "520-528",
doi = "10.1111/jerd.12529"
}
Miletić, V., Marjanović, J., Veljović, Đ., Stasić, J.,& Petrović, V.. (2019). Color stability of bulk-fill and universal composite restorations with dissimilar dentin replacement materials. in Journal of Esthetic & Restorative Dentistry
Wiley, Hoboken., 31(5), 520-528.
https://doi.org/10.1111/jerd.12529
Miletić V, Marjanović J, Veljović Đ, Stasić J, Petrović V. Color stability of bulk-fill and universal composite restorations with dissimilar dentin replacement materials. in Journal of Esthetic & Restorative Dentistry. 2019;31(5):520-528.
doi:10.1111/jerd.12529 .
Miletić, Vesna, Marjanović, Jovana, Veljović, Đorđe, Stasić, Jovana, Petrović, Violeta, "Color stability of bulk-fill and universal composite restorations with dissimilar dentin replacement materials" in Journal of Esthetic & Restorative Dentistry, 31, no. 5 (2019):520-528,
https://doi.org/10.1111/jerd.12529 . .
10
2
9

Temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following simulated direct pulp capping

Petrović, Violeta; Stasić, Jovana; Komlenić, Vojislav; Savić-Stanković, Tatjana; Latković, Marina; Miletić, Vesna

(Savez hemijskih inženjera, Beograd, 2019)

TY  - JOUR
AU  - Petrović, Violeta
AU  - Stasić, Jovana
AU  - Komlenić, Vojislav
AU  - Savić-Stanković, Tatjana
AU  - Latković, Marina
AU  - Miletić, Vesna
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2377
AB  - The objective of this study was to measure temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following a simulated procedure of direct pulp capping. Class I cavities with a microperforation at the pulp horn were prepared in extracted human molar teeth. The complete procedure of direct pulp capping and cavity restoration was performed with the root part of extracted teeth fixed in a water bath at 37 degrees C. Mineral trioxide aggregate, bioactive dentin substitute or calcium-hydroxide paste were used as pulp capping materials. Cavities were restored with a light-cured or chemically-cured resin-modified glass ionomer, universal adhesive and a bulk-fill composite, cured with a high-intensity LED unit. Pulp capping materials caused a slight temperature decrease. Lower temperature increase was recorded during light-curing of the glass ionomer liner after direct capping with mineral trioxide aggregate and calcium-hydroxide than that recorded for the bioactive dentin substitute. Adhesive light-curing increased temperature in all groups with higher mean temperatures in groups with chemically-cured as compared to those for the light-cured glass ionomer liner. Direct pulp capping with mineral trioxide aggregate or calcium-hydroxide followed by the light-cured resin-modified glass ionomer liner and a bonded bulk-fill composite restoration induced temperature changes below the potentially adverse threshold of 42.5 degrees C.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska Industrija
T1  - Temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following simulated direct pulp capping
VL  - 73
IS  - 4
SP  - 239
EP  - 248
DO  - 10.2298/HEMIND190504020P
ER  - 
@article{
author = "Petrović, Violeta and Stasić, Jovana and Komlenić, Vojislav and Savić-Stanković, Tatjana and Latković, Marina and Miletić, Vesna",
year = "2019",
abstract = "The objective of this study was to measure temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following a simulated procedure of direct pulp capping. Class I cavities with a microperforation at the pulp horn were prepared in extracted human molar teeth. The complete procedure of direct pulp capping and cavity restoration was performed with the root part of extracted teeth fixed in a water bath at 37 degrees C. Mineral trioxide aggregate, bioactive dentin substitute or calcium-hydroxide paste were used as pulp capping materials. Cavities were restored with a light-cured or chemically-cured resin-modified glass ionomer, universal adhesive and a bulk-fill composite, cured with a high-intensity LED unit. Pulp capping materials caused a slight temperature decrease. Lower temperature increase was recorded during light-curing of the glass ionomer liner after direct capping with mineral trioxide aggregate and calcium-hydroxide than that recorded for the bioactive dentin substitute. Adhesive light-curing increased temperature in all groups with higher mean temperatures in groups with chemically-cured as compared to those for the light-cured glass ionomer liner. Direct pulp capping with mineral trioxide aggregate or calcium-hydroxide followed by the light-cured resin-modified glass ionomer liner and a bonded bulk-fill composite restoration induced temperature changes below the potentially adverse threshold of 42.5 degrees C.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska Industrija",
title = "Temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following simulated direct pulp capping",
volume = "73",
number = "4",
pages = "239-248",
doi = "10.2298/HEMIND190504020P"
}
Petrović, V., Stasić, J., Komlenić, V., Savić-Stanković, T., Latković, M.,& Miletić, V.. (2019). Temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following simulated direct pulp capping. in Hemijska Industrija
Savez hemijskih inženjera, Beograd., 73(4), 239-248.
https://doi.org/10.2298/HEMIND190504020P
Petrović V, Stasić J, Komlenić V, Savić-Stanković T, Latković M, Miletić V. Temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following simulated direct pulp capping. in Hemijska Industrija. 2019;73(4):239-248.
doi:10.2298/HEMIND190504020P .
Petrović, Violeta, Stasić, Jovana, Komlenić, Vojislav, Savić-Stanković, Tatjana, Latković, Marina, Miletić, Vesna, "Temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following simulated direct pulp capping" in Hemijska Industrija, 73, no. 4 (2019):239-248,
https://doi.org/10.2298/HEMIND190504020P . .
1
1
1

Optical properties of composite restorations influenced by dissimilar dentin restoratives

Marjanović, Jovana; Veljović, Đorđe; Stasić, Jovana; Savić-Stanković, Tatjana; Trifković, Branka; Miletić, Vesna

(Elsevier Sci Ltd, Oxford, 2018)

TY  - JOUR
AU  - Marjanović, Jovana
AU  - Veljović, Đorđe
AU  - Stasić, Jovana
AU  - Savić-Stanković, Tatjana
AU  - Trifković, Branka
AU  - Miletić, Vesna
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2536
AB  - Objectives. To evaluate optical properties (color and translucency) of 'sandwich' restorations of resin-based composites and esthetically unfavorable dentin restoratives. Methods. Cylindrical 'dentin' specimens (8 mm in diameter and 2 mm thick, N = 5/group) were prepared using EverX Posterior (GC), Biodentine (Septodont), experimental hydroxyapatite (HAP) or conventional composites (Gradia Direct Posterior, GC; Filtek Z250 and Filtek Z500, 3M ESPE). Capping 'enamel' layers were prepared using composites (Gradia Direct Posterior, Filtek Z250 or Z550) of Al or A3 shade and the following thickness: 0.6, 1 or 2 mm. Color (Delta E) and translucency parameter (TP) were determined using a spectrophotometer (VITA Easyshade Advance 4.0, VITA Zahnfabrik). Data were statistically analyzed using analysis of variance with Tukey's post-hoc tests (alpha = 0.05). Results. TP was greatly affected by layer thickness, whilst Delta E depended on shade and layer thickness of the capping composite. HAP and Biodentine showed significantly lower TP and higher Delta E (deviation from 'ideal white') than composites (p  lt  0.05). Greater TP was seen in EverX_composite groups than in corresponding control groups of the same shade and thickness. TP of composites combined with Biodentine or HAP was below 2, lower than the corresponding control groups (p  lt  0.05). Within-group differences of Delta E were greatest in HAP_composite groups. EverX_Gradia and EverX_FiltekZ250 combinations showed the most comparable Delta E with the control groups. Significance. A 2 mm thick layer of composite covering dentin restoratives with unfavorable esthetics is recommended for a final 'sandwich' restoration that is esthetically comparable to a conventional, mono-composite control restoration.
PB  - Elsevier Sci Ltd, Oxford
T2  - Dental Materials
T1  - Optical properties of composite restorations influenced by dissimilar dentin restoratives
VL  - 34
IS  - 5
SP  - 737
EP  - 745
DO  - 10.1016/j.dental.2018.01.017
ER  - 
@article{
author = "Marjanović, Jovana and Veljović, Đorđe and Stasić, Jovana and Savić-Stanković, Tatjana and Trifković, Branka and Miletić, Vesna",
year = "2018",
abstract = "Objectives. To evaluate optical properties (color and translucency) of 'sandwich' restorations of resin-based composites and esthetically unfavorable dentin restoratives. Methods. Cylindrical 'dentin' specimens (8 mm in diameter and 2 mm thick, N = 5/group) were prepared using EverX Posterior (GC), Biodentine (Septodont), experimental hydroxyapatite (HAP) or conventional composites (Gradia Direct Posterior, GC; Filtek Z250 and Filtek Z500, 3M ESPE). Capping 'enamel' layers were prepared using composites (Gradia Direct Posterior, Filtek Z250 or Z550) of Al or A3 shade and the following thickness: 0.6, 1 or 2 mm. Color (Delta E) and translucency parameter (TP) were determined using a spectrophotometer (VITA Easyshade Advance 4.0, VITA Zahnfabrik). Data were statistically analyzed using analysis of variance with Tukey's post-hoc tests (alpha = 0.05). Results. TP was greatly affected by layer thickness, whilst Delta E depended on shade and layer thickness of the capping composite. HAP and Biodentine showed significantly lower TP and higher Delta E (deviation from 'ideal white') than composites (p  lt  0.05). Greater TP was seen in EverX_composite groups than in corresponding control groups of the same shade and thickness. TP of composites combined with Biodentine or HAP was below 2, lower than the corresponding control groups (p  lt  0.05). Within-group differences of Delta E were greatest in HAP_composite groups. EverX_Gradia and EverX_FiltekZ250 combinations showed the most comparable Delta E with the control groups. Significance. A 2 mm thick layer of composite covering dentin restoratives with unfavorable esthetics is recommended for a final 'sandwich' restoration that is esthetically comparable to a conventional, mono-composite control restoration.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Dental Materials",
title = "Optical properties of composite restorations influenced by dissimilar dentin restoratives",
volume = "34",
number = "5",
pages = "737-745",
doi = "10.1016/j.dental.2018.01.017"
}
Marjanović, J., Veljović, Đ., Stasić, J., Savić-Stanković, T., Trifković, B.,& Miletić, V.. (2018). Optical properties of composite restorations influenced by dissimilar dentin restoratives. in Dental Materials
Elsevier Sci Ltd, Oxford., 34(5), 737-745.
https://doi.org/10.1016/j.dental.2018.01.017
Marjanović J, Veljović Đ, Stasić J, Savić-Stanković T, Trifković B, Miletić V. Optical properties of composite restorations influenced by dissimilar dentin restoratives. in Dental Materials. 2018;34(5):737-745.
doi:10.1016/j.dental.2018.01.017 .
Marjanović, Jovana, Veljović, Đorđe, Stasić, Jovana, Savić-Stanković, Tatjana, Trifković, Branka, Miletić, Vesna, "Optical properties of composite restorations influenced by dissimilar dentin restoratives" in Dental Materials, 34, no. 5 (2018):737-745,
https://doi.org/10.1016/j.dental.2018.01.017 . .
16
10
14

Optical properties of composite restorations influenced by dissimilar dentin restoratives

Marjanović, Jovana; Veljović, Đorđe; Stasić, Jovana; Savić-Stanković, Tatjana; Trifković, Branka; Miletić, Vesna

(Elsevier Sci Ltd, Oxford, 2018)

TY  - JOUR
AU  - Marjanović, Jovana
AU  - Veljović, Đorđe
AU  - Stasić, Jovana
AU  - Savić-Stanković, Tatjana
AU  - Trifković, Branka
AU  - Miletić, Vesna
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2290
AB  - Objectives. To evaluate optical properties (color and translucency) of 'sandwich' restorations of resin-based composites and esthetically unfavorable dentin restoratives. Methods. Cylindrical 'dentin' specimens (8 mm in diameter and 2 mm thick, N = 5/group) were prepared using EverX Posterior (GC), Biodentine (Septodont), experimental hydroxyapatite (HAP) or conventional composites (Gradia Direct Posterior, GC; Filtek Z250 and Filtek Z500, 3M ESPE). Capping 'enamel' layers were prepared using composites (Gradia Direct Posterior, Filtek Z250 or Z550) of Al or A3 shade and the following thickness: 0.6, 1 or 2 mm. Color (Delta E) and translucency parameter (TP) were determined using a spectrophotometer (VITA Easyshade Advance 4.0, VITA Zahnfabrik). Data were statistically analyzed using analysis of variance with Tukey's post-hoc tests (alpha = 0.05). Results. TP was greatly affected by layer thickness, whilst Delta E depended on shade and layer thickness of the capping composite. HAP and Biodentine showed significantly lower TP and higher Delta E (deviation from 'ideal white') than composites (p  lt  0.05). Greater TP was seen in EverX_composite groups than in corresponding control groups of the same shade and thickness. TP of composites combined with Biodentine or HAP was below 2, lower than the corresponding control groups (p  lt  0.05). Within-group differences of Delta E were greatest in HAP_composite groups. EverX_Gradia and EverX_FiltekZ250 combinations showed the most comparable Delta E with the control groups. Significance. A 2 mm thick layer of composite covering dentin restoratives with unfavorable esthetics is recommended for a final 'sandwich' restoration that is esthetically comparable to a conventional, mono-composite control restoration.
PB  - Elsevier Sci Ltd, Oxford
T2  - Dental Materials
T1  - Optical properties of composite restorations influenced by dissimilar dentin restoratives
VL  - 34
IS  - 5
SP  - 737
EP  - 745
DO  - 10.1016/j.dental.2018.01.017
ER  - 
@article{
author = "Marjanović, Jovana and Veljović, Đorđe and Stasić, Jovana and Savić-Stanković, Tatjana and Trifković, Branka and Miletić, Vesna",
year = "2018",
abstract = "Objectives. To evaluate optical properties (color and translucency) of 'sandwich' restorations of resin-based composites and esthetically unfavorable dentin restoratives. Methods. Cylindrical 'dentin' specimens (8 mm in diameter and 2 mm thick, N = 5/group) were prepared using EverX Posterior (GC), Biodentine (Septodont), experimental hydroxyapatite (HAP) or conventional composites (Gradia Direct Posterior, GC; Filtek Z250 and Filtek Z500, 3M ESPE). Capping 'enamel' layers were prepared using composites (Gradia Direct Posterior, Filtek Z250 or Z550) of Al or A3 shade and the following thickness: 0.6, 1 or 2 mm. Color (Delta E) and translucency parameter (TP) were determined using a spectrophotometer (VITA Easyshade Advance 4.0, VITA Zahnfabrik). Data were statistically analyzed using analysis of variance with Tukey's post-hoc tests (alpha = 0.05). Results. TP was greatly affected by layer thickness, whilst Delta E depended on shade and layer thickness of the capping composite. HAP and Biodentine showed significantly lower TP and higher Delta E (deviation from 'ideal white') than composites (p  lt  0.05). Greater TP was seen in EverX_composite groups than in corresponding control groups of the same shade and thickness. TP of composites combined with Biodentine or HAP was below 2, lower than the corresponding control groups (p  lt  0.05). Within-group differences of Delta E were greatest in HAP_composite groups. EverX_Gradia and EverX_FiltekZ250 combinations showed the most comparable Delta E with the control groups. Significance. A 2 mm thick layer of composite covering dentin restoratives with unfavorable esthetics is recommended for a final 'sandwich' restoration that is esthetically comparable to a conventional, mono-composite control restoration.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Dental Materials",
title = "Optical properties of composite restorations influenced by dissimilar dentin restoratives",
volume = "34",
number = "5",
pages = "737-745",
doi = "10.1016/j.dental.2018.01.017"
}
Marjanović, J., Veljović, Đ., Stasić, J., Savić-Stanković, T., Trifković, B.,& Miletić, V.. (2018). Optical properties of composite restorations influenced by dissimilar dentin restoratives. in Dental Materials
Elsevier Sci Ltd, Oxford., 34(5), 737-745.
https://doi.org/10.1016/j.dental.2018.01.017
Marjanović J, Veljović Đ, Stasić J, Savić-Stanković T, Trifković B, Miletić V. Optical properties of composite restorations influenced by dissimilar dentin restoratives. in Dental Materials. 2018;34(5):737-745.
doi:10.1016/j.dental.2018.01.017 .
Marjanović, Jovana, Veljović, Đorđe, Stasić, Jovana, Savić-Stanković, Tatjana, Trifković, Branka, Miletić, Vesna, "Optical properties of composite restorations influenced by dissimilar dentin restoratives" in Dental Materials, 34, no. 5 (2018):737-745,
https://doi.org/10.1016/j.dental.2018.01.017 . .
16
10
14

Fluoride release from conventional, resin-modified and hybrid glass ionomer cements

Ležaja-Zebić, Maja; Jakovljević, Nikola; Miletić, Vesna

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2018)

TY  - JOUR
AU  - Ležaja-Zebić, Maja
AU  - Jakovljević, Nikola
AU  - Miletić, Vesna
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2361
AB  - Introduction the aim of the study was to quantify and compare fluoride release from four different glass ionomer cement products (GICs). Materials and Methods Standardized disk-shaped samples (5x2mm; n=5/group) of GIC restorative materials: conventional (Fuji IX, GC Corp., Japan), resin-modified (Fuji II LC, GC) and hybrid glass ionomer cement (Equia Forte, GC) and a conventional GIC liner/base material (Alfagal, Galenika, Serbia) were tested for fluoride release up to 21 days post-setting. Each sample was immersed in 5 mL of fresh deionized water during each time interval. Universal microhybrid composite (Filtek Z250, 3M EPSE, USA) and adhesive (Adper Single Bond, 3M ESPE) were used as negative controls. Fluoride release was measured using an F-selective electrode (Cole-Parmer, USA) and an ion meter (Oakton 700, Cole-Parmer, USA). Data were statistically analyzed using one-way ANOVA, regression and correlation analysis at 0.05. Results the highest total fluoride release was measured from Alfagal (386±61 ppm/g), and significantly less from Equia (188±29 ppm/g), Fuji IX (143±11 ppm/g) and Fuji II LC (104±14 ppm/g) (p  lt  0.05). All GICs showed the highest fluoride release during the first 24 hours post-setting. After 3 days, fluoride release slowed down reaching a plateau for all materials. Regression and Pearson correlation analysis showed significant inverse relationship between fluoride release and sample mass and density (p lt 0.001). Conclusion of the three GICs indicated for use as restorative materials, Equia Forte released the highest fluoride concentration. Fluoride release was material and density dependent, with higher release occurring from lower density GICs.
AB  - Uvod Cilj ovog istraživanja je bio da se kvantifikuje i uporedi otpuštanje fluorida iz četiri glasjonomer cementa (GJC). Materijal i metode Napravljeni su standardizovani diskovi (5 × 2 mm; n = 5/grupa) od sledećih GJC: konvencionalnih (Fuji IX, GC Corp., Japan), smolom modifikovani (Fuji II LC, GC), hibridni GJC (Equia Forte, GC) i konvencionalni GJC lajner/baza (Alfagal, Galenika, Srbija). Ispitivano je otpuštanje fluorida tokom 21 dana tako što je svaki uzorak potapan u 5 ml sveže destilovane vode posle svakog mernog intervala. Univerzalni mikrohibridni kompozit (Filtek Z250, 3M EPSE, USA) i adheziv (Adper Single Bond, 3M ESPE) korišćeni su kao negativne kontrole. Otpuštanje fluorida je očitavano pomoću fluor-selektivne elektrode (Cole-Parmer, USA) i jon-metra (Oakton 700, Cole-Parmer, USA). Rezultati su statistički obrađeni ANOVA testom, regresionim i korelacionim analizama sa α = 0,05. Rezultati Ukupno otpuštanje fluorida je bilo najveće iz Alfagala (386 ± 61 ppm/g), značajno manje iz Equia Forte (188 ± 29 ppm/g), Fuji IX (143 ± 11 ppm/g), a najmanje iz Fuji II LC (104 ± 14 ppm/g) (p  lt  0,05). Svi GJC pokazali su najveće otpuštanje fluorida u toku prva 24 h po vezivanju. Posle tri dana otpuštanje fluorida je postajalo sporije dostižući plato za sva četiri materijala. Regresiona i Pirsonova korelaciona analiza pokazale su značajan obrnut odnos između otpuštanja fluorida i mase i gustine uzoraka (p  lt  0,001). Zaključak Od GJC indikovanih za ispune, Equia Forte je otpustila najveću koncentraciju fluorida. Otpuštanje fluorida zavisi od materijala i njegove gustine, pri čemu GJC manje gustine otpuštaju više fluorida.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Fluoride release from conventional, resin-modified and hybrid glass ionomer cements
T1  - Otpuštanje fluorida iz konvencionalnih, smolom modifikovanih i hibridnih glas-jonomer cemenata
VL  - 65
IS  - 4
SP  - 187
EP  - 194
UR  - https://hdl.handle.net/21.15107/rcub_smile_2361
ER  - 
@article{
author = "Ležaja-Zebić, Maja and Jakovljević, Nikola and Miletić, Vesna",
year = "2018",
abstract = "Introduction the aim of the study was to quantify and compare fluoride release from four different glass ionomer cement products (GICs). Materials and Methods Standardized disk-shaped samples (5x2mm; n=5/group) of GIC restorative materials: conventional (Fuji IX, GC Corp., Japan), resin-modified (Fuji II LC, GC) and hybrid glass ionomer cement (Equia Forte, GC) and a conventional GIC liner/base material (Alfagal, Galenika, Serbia) were tested for fluoride release up to 21 days post-setting. Each sample was immersed in 5 mL of fresh deionized water during each time interval. Universal microhybrid composite (Filtek Z250, 3M EPSE, USA) and adhesive (Adper Single Bond, 3M ESPE) were used as negative controls. Fluoride release was measured using an F-selective electrode (Cole-Parmer, USA) and an ion meter (Oakton 700, Cole-Parmer, USA). Data were statistically analyzed using one-way ANOVA, regression and correlation analysis at 0.05. Results the highest total fluoride release was measured from Alfagal (386±61 ppm/g), and significantly less from Equia (188±29 ppm/g), Fuji IX (143±11 ppm/g) and Fuji II LC (104±14 ppm/g) (p  lt  0.05). All GICs showed the highest fluoride release during the first 24 hours post-setting. After 3 days, fluoride release slowed down reaching a plateau for all materials. Regression and Pearson correlation analysis showed significant inverse relationship between fluoride release and sample mass and density (p lt 0.001). Conclusion of the three GICs indicated for use as restorative materials, Equia Forte released the highest fluoride concentration. Fluoride release was material and density dependent, with higher release occurring from lower density GICs., Uvod Cilj ovog istraživanja je bio da se kvantifikuje i uporedi otpuštanje fluorida iz četiri glasjonomer cementa (GJC). Materijal i metode Napravljeni su standardizovani diskovi (5 × 2 mm; n = 5/grupa) od sledećih GJC: konvencionalnih (Fuji IX, GC Corp., Japan), smolom modifikovani (Fuji II LC, GC), hibridni GJC (Equia Forte, GC) i konvencionalni GJC lajner/baza (Alfagal, Galenika, Srbija). Ispitivano je otpuštanje fluorida tokom 21 dana tako što je svaki uzorak potapan u 5 ml sveže destilovane vode posle svakog mernog intervala. Univerzalni mikrohibridni kompozit (Filtek Z250, 3M EPSE, USA) i adheziv (Adper Single Bond, 3M ESPE) korišćeni su kao negativne kontrole. Otpuštanje fluorida je očitavano pomoću fluor-selektivne elektrode (Cole-Parmer, USA) i jon-metra (Oakton 700, Cole-Parmer, USA). Rezultati su statistički obrađeni ANOVA testom, regresionim i korelacionim analizama sa α = 0,05. Rezultati Ukupno otpuštanje fluorida je bilo najveće iz Alfagala (386 ± 61 ppm/g), značajno manje iz Equia Forte (188 ± 29 ppm/g), Fuji IX (143 ± 11 ppm/g), a najmanje iz Fuji II LC (104 ± 14 ppm/g) (p  lt  0,05). Svi GJC pokazali su najveće otpuštanje fluorida u toku prva 24 h po vezivanju. Posle tri dana otpuštanje fluorida je postajalo sporije dostižući plato za sva četiri materijala. Regresiona i Pirsonova korelaciona analiza pokazale su značajan obrnut odnos između otpuštanja fluorida i mase i gustine uzoraka (p  lt  0,001). Zaključak Od GJC indikovanih za ispune, Equia Forte je otpustila najveću koncentraciju fluorida. Otpuštanje fluorida zavisi od materijala i njegove gustine, pri čemu GJC manje gustine otpuštaju više fluorida.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Fluoride release from conventional, resin-modified and hybrid glass ionomer cements, Otpuštanje fluorida iz konvencionalnih, smolom modifikovanih i hibridnih glas-jonomer cemenata",
volume = "65",
number = "4",
pages = "187-194",
url = "https://hdl.handle.net/21.15107/rcub_smile_2361"
}
Ležaja-Zebić, M., Jakovljević, N.,& Miletić, V.. (2018). Fluoride release from conventional, resin-modified and hybrid glass ionomer cements. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 65(4), 187-194.
https://hdl.handle.net/21.15107/rcub_smile_2361
Ležaja-Zebić M, Jakovljević N, Miletić V. Fluoride release from conventional, resin-modified and hybrid glass ionomer cements. in Stomatološki glasnik Srbije. 2018;65(4):187-194.
https://hdl.handle.net/21.15107/rcub_smile_2361 .
Ležaja-Zebić, Maja, Jakovljević, Nikola, Miletić, Vesna, "Fluoride release from conventional, resin-modified and hybrid glass ionomer cements" in Stomatološki glasnik Srbije, 65, no. 4 (2018):187-194,
https://hdl.handle.net/21.15107/rcub_smile_2361 .

Composite nanostructured hydroxyapatite/yttrium stabilized zirconia dental inserts - The processing and application as dentin substitutes

Ayoub, Giuma; Veljović, Đorđe; Ležaja-Zebić, Maja; Miletić, Vesna; Palcevskis, Eriks; Petrović, Rada; Janaćković, Đorđe

(Elsevier Sci Ltd, Oxford, 2018)

TY  - JOUR
AU  - Ayoub, Giuma
AU  - Veljović, Đorđe
AU  - Ležaja-Zebić, Maja
AU  - Miletić, Vesna
AU  - Palcevskis, Eriks
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2305
AB  - The objective of the study was to process nano-structured hydroxyapatite/yttrium-stabilized zirconia bioceramic and to investigate the possibilities of its application as dentin replacement in the form of dental inserts. The processing conditions were varied in order to optimize phase composition, microstructure, fracture toughness, hardness and shear bond strength (SBS) between the obtained composite inserts and restorative materials, following either the "total-etch" or "self-etch" clinical protocol. Composite nano-powder, obtained by mixing and homogenization of 80 wt% of stoichiometric hydroxyapatite (HAp) synthesized by modified precipitation method and 20wt% of yttrium-stabilized ZrO2 (YSZ) synthesized by plasma method, was isostatically pressed into cylinder-shaped green bodies. After dilatometric analysis, HAp/YSZ inserts were sintered in the temperature range from 1200 degrees C to 1300 degrees C. Hardness and fracture toughness of sintered inserts were ranged between 3.90 +/- 0.20 - 3.95 +/- 0.12 GPa and 1.82 +/- 0.04 - 1.88 +/- 0.03 MPam(1/2), respectively. Microstructural analysis of biphasic HAp/t-ZrO2 inserts indicated two potential fracture mechanisms for fracture toughness increasing. Sintering temperature and different clinical protocols affected SBS between processed inserts and commercial dental restorative materials. Maximum SBS values of 10.50 +/- 4.94 MPa (mean standard deviation) were reached in inserts sintered at 1300 degrees C, following the "self-etch" protocol of adhesive application. It could be concluded that resin-based composites could be strongly bonded to HAp/YSZ inserts, preferably with self-etch" adhesive application. In addition, the values of fracture toughness and hardness of the obtained inserts indicated the possibility of their usage as dentin substitutes, which could be a good prerequisite for satisfactory mechanics of restored teeth.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Composite nanostructured hydroxyapatite/yttrium stabilized zirconia dental inserts - The processing and application as dentin substitutes
VL  - 44
IS  - 15
SP  - 18200
EP  - 18208
DO  - 10.1016/j.ceramint.2018.07.028
ER  - 
@article{
author = "Ayoub, Giuma and Veljović, Đorđe and Ležaja-Zebić, Maja and Miletić, Vesna and Palcevskis, Eriks and Petrović, Rada and Janaćković, Đorđe",
year = "2018",
abstract = "The objective of the study was to process nano-structured hydroxyapatite/yttrium-stabilized zirconia bioceramic and to investigate the possibilities of its application as dentin replacement in the form of dental inserts. The processing conditions were varied in order to optimize phase composition, microstructure, fracture toughness, hardness and shear bond strength (SBS) between the obtained composite inserts and restorative materials, following either the "total-etch" or "self-etch" clinical protocol. Composite nano-powder, obtained by mixing and homogenization of 80 wt% of stoichiometric hydroxyapatite (HAp) synthesized by modified precipitation method and 20wt% of yttrium-stabilized ZrO2 (YSZ) synthesized by plasma method, was isostatically pressed into cylinder-shaped green bodies. After dilatometric analysis, HAp/YSZ inserts were sintered in the temperature range from 1200 degrees C to 1300 degrees C. Hardness and fracture toughness of sintered inserts were ranged between 3.90 +/- 0.20 - 3.95 +/- 0.12 GPa and 1.82 +/- 0.04 - 1.88 +/- 0.03 MPam(1/2), respectively. Microstructural analysis of biphasic HAp/t-ZrO2 inserts indicated two potential fracture mechanisms for fracture toughness increasing. Sintering temperature and different clinical protocols affected SBS between processed inserts and commercial dental restorative materials. Maximum SBS values of 10.50 +/- 4.94 MPa (mean standard deviation) were reached in inserts sintered at 1300 degrees C, following the "self-etch" protocol of adhesive application. It could be concluded that resin-based composites could be strongly bonded to HAp/YSZ inserts, preferably with self-etch" adhesive application. In addition, the values of fracture toughness and hardness of the obtained inserts indicated the possibility of their usage as dentin substitutes, which could be a good prerequisite for satisfactory mechanics of restored teeth.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Composite nanostructured hydroxyapatite/yttrium stabilized zirconia dental inserts - The processing and application as dentin substitutes",
volume = "44",
number = "15",
pages = "18200-18208",
doi = "10.1016/j.ceramint.2018.07.028"
}
Ayoub, G., Veljović, Đ., Ležaja-Zebić, M., Miletić, V., Palcevskis, E., Petrović, R.,& Janaćković, Đ.. (2018). Composite nanostructured hydroxyapatite/yttrium stabilized zirconia dental inserts - The processing and application as dentin substitutes. in Ceramics International
Elsevier Sci Ltd, Oxford., 44(15), 18200-18208.
https://doi.org/10.1016/j.ceramint.2018.07.028
Ayoub G, Veljović Đ, Ležaja-Zebić M, Miletić V, Palcevskis E, Petrović R, Janaćković Đ. Composite nanostructured hydroxyapatite/yttrium stabilized zirconia dental inserts - The processing and application as dentin substitutes. in Ceramics International. 2018;44(15):18200-18208.
doi:10.1016/j.ceramint.2018.07.028 .
Ayoub, Giuma, Veljović, Đorđe, Ležaja-Zebić, Maja, Miletić, Vesna, Palcevskis, Eriks, Petrović, Rada, Janaćković, Đorđe, "Composite nanostructured hydroxyapatite/yttrium stabilized zirconia dental inserts - The processing and application as dentin substitutes" in Ceramics International, 44, no. 15 (2018):18200-18208,
https://doi.org/10.1016/j.ceramint.2018.07.028 . .
20
13
19

Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation

Ležaja-Zebić, Maja; Dželetović, Bojan; Miletić, Vesna

(Wiley, Hoboken, 2018)

TY  - JOUR
AU  - Ležaja-Zebić, Maja
AU  - Dželetović, Bojan
AU  - Miletić, Vesna
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2299
AB  - Objectives: The aim of this study was to test long-term microtensile bond strength (mu TBS) of 2 universal adhesives applied to dentin following "total-etch" (TE) or "self-etch" (SE) protocols and aged by direct or indirect water exposure using simulated pulpal pressure. Materials and methods: Single Bond Universal (SBU, 3M ESPE) or Ipera Bond (IP, Itena) were applied to mid-coronal dentin ("flat dentin") or Class I cavity ("cavity dentin") following TE or SE protocols in 112 extracted human third molars. Sixteen groups (n=7 per group) were prepared, 8 groups for mu TBS measurements after 24 hours, and further 8 groups for measurements after 6 months storage. "Cavity dentin" groups were subjected to simulated hydrostatic pulpal pressure of 15 cm H2O using a custom-made device before cutting 1 x 1 mm sticks while "flat dentin" groups were cut into sticks and directly exposed to deionized water. Results: Generally, the TE protocol resulted in highest mu TBS values on flat dentin initially for both adhesives (general linear model, P lt .05). Long-term storage resulted in significantly lower mu TBS values for the TE protocol (P lt .05) while the SE protocol showed comparable values after 6 months (P>.05). "Cavity dentin" with simulated pulpal pressure resulted in lower mu TBS than "flat dentin" (P lt .05). For both adhesives, mu TBS was in the range of 19-42 MPa initially and 16-36 MPa after 6 months storage. Conclusions: mu TBS to dentin of universal adhesives is more stable in the long term following the SE than TE protocol. Simulated pulpal pressure and cavity-type sample preparation may be recommended for mu TBS testing as a more clinically relevant strategy.
PB  - Wiley, Hoboken
T2  - Journal of Esthetic & Restorative Dentistry
T1  - Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation
VL  - 30
IS  - 3
SP  - 240
EP  - 248
DO  - 10.1111/jerd.12363
ER  - 
@article{
author = "Ležaja-Zebić, Maja and Dželetović, Bojan and Miletić, Vesna",
year = "2018",
abstract = "Objectives: The aim of this study was to test long-term microtensile bond strength (mu TBS) of 2 universal adhesives applied to dentin following "total-etch" (TE) or "self-etch" (SE) protocols and aged by direct or indirect water exposure using simulated pulpal pressure. Materials and methods: Single Bond Universal (SBU, 3M ESPE) or Ipera Bond (IP, Itena) were applied to mid-coronal dentin ("flat dentin") or Class I cavity ("cavity dentin") following TE or SE protocols in 112 extracted human third molars. Sixteen groups (n=7 per group) were prepared, 8 groups for mu TBS measurements after 24 hours, and further 8 groups for measurements after 6 months storage. "Cavity dentin" groups were subjected to simulated hydrostatic pulpal pressure of 15 cm H2O using a custom-made device before cutting 1 x 1 mm sticks while "flat dentin" groups were cut into sticks and directly exposed to deionized water. Results: Generally, the TE protocol resulted in highest mu TBS values on flat dentin initially for both adhesives (general linear model, P lt .05). Long-term storage resulted in significantly lower mu TBS values for the TE protocol (P lt .05) while the SE protocol showed comparable values after 6 months (P>.05). "Cavity dentin" with simulated pulpal pressure resulted in lower mu TBS than "flat dentin" (P lt .05). For both adhesives, mu TBS was in the range of 19-42 MPa initially and 16-36 MPa after 6 months storage. Conclusions: mu TBS to dentin of universal adhesives is more stable in the long term following the SE than TE protocol. Simulated pulpal pressure and cavity-type sample preparation may be recommended for mu TBS testing as a more clinically relevant strategy.",
publisher = "Wiley, Hoboken",
journal = "Journal of Esthetic & Restorative Dentistry",
title = "Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation",
volume = "30",
number = "3",
pages = "240-248",
doi = "10.1111/jerd.12363"
}
Ležaja-Zebić, M., Dželetović, B.,& Miletić, V.. (2018). Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation. in Journal of Esthetic & Restorative Dentistry
Wiley, Hoboken., 30(3), 240-248.
https://doi.org/10.1111/jerd.12363
Ležaja-Zebić M, Dželetović B, Miletić V. Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation. in Journal of Esthetic & Restorative Dentistry. 2018;30(3):240-248.
doi:10.1111/jerd.12363 .
Ležaja-Zebić, Maja, Dželetović, Bojan, Miletić, Vesna, "Microtensile bond strength of universal adhesives to flat versus Class I cavity dentin with pulpal pressure simulation" in Journal of Esthetic & Restorative Dentistry, 30, no. 3 (2018):240-248,
https://doi.org/10.1111/jerd.12363 . .
6
4
6

The effect of calcinated hydroxyapatite and magnesium doped hydroxyapatite as fillers on the mechanical properties of a model bisgma/tegdma dental composite initially and after aging

Matić, Tamara; Ležaja-Zebić, Maja; Cvijović-Alagić, Ivana; Miletić, Vesna; Petrović, Rada; Janaćković, Đorđe; Veljović, Đorđe

(Savez inženjera metalurgije Srbije, Beograd, 2018)

TY  - JOUR
AU  - Matić, Tamara
AU  - Ležaja-Zebić, Maja
AU  - Cvijović-Alagić, Ivana
AU  - Miletić, Vesna
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Veljović, Đorđe
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2281
AB  - This study aimed to investigate the possibility of modifying model BisGMA/TEGDMA dental composite by substituting 10 wt. % of conventional glass fillers with bioactive fillers based on calcinated nanosized hydroxyapatite (HAp) and Mg-doped hydroxyapatite (Mg-HAp). HAp and Mg-HAp powders were synthesized hydrothermally. Mechanical properties: hardness by Vickers (HV) and flexural strength (Fs) were tested initially and after being stored for 28 days in simulated body fluid (SBF). The experimental composites with HAp and Mg-HAp particles showed no statistically significant difference in HV compared to the control (p>0.05) either initially or after storage. Although mean Fs values of modified composites tested initially were lower (62 MPa) than those of the control (72 MPa), after 28 days of storage in SBF Fs values were greater for modified composites (42 MPa control sample, 48 MPa HAp, and Mg-HAp samples). In vitro bioactivity of BisGMA/TEGDMA composites with HAp and Mg-HAp particles after 28 days in SBF was not detected.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - The effect of calcinated hydroxyapatite and magnesium doped hydroxyapatite as fillers on the mechanical properties of a model bisgma/tegdma dental composite initially and after aging
VL  - 24
IS  - 4
SP  - 271
EP  - 281
DO  - 10.30544/403
ER  - 
@article{
author = "Matić, Tamara and Ležaja-Zebić, Maja and Cvijović-Alagić, Ivana and Miletić, Vesna and Petrović, Rada and Janaćković, Đorđe and Veljović, Đorđe",
year = "2018",
abstract = "This study aimed to investigate the possibility of modifying model BisGMA/TEGDMA dental composite by substituting 10 wt. % of conventional glass fillers with bioactive fillers based on calcinated nanosized hydroxyapatite (HAp) and Mg-doped hydroxyapatite (Mg-HAp). HAp and Mg-HAp powders were synthesized hydrothermally. Mechanical properties: hardness by Vickers (HV) and flexural strength (Fs) were tested initially and after being stored for 28 days in simulated body fluid (SBF). The experimental composites with HAp and Mg-HAp particles showed no statistically significant difference in HV compared to the control (p>0.05) either initially or after storage. Although mean Fs values of modified composites tested initially were lower (62 MPa) than those of the control (72 MPa), after 28 days of storage in SBF Fs values were greater for modified composites (42 MPa control sample, 48 MPa HAp, and Mg-HAp samples). In vitro bioactivity of BisGMA/TEGDMA composites with HAp and Mg-HAp particles after 28 days in SBF was not detected.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "The effect of calcinated hydroxyapatite and magnesium doped hydroxyapatite as fillers on the mechanical properties of a model bisgma/tegdma dental composite initially and after aging",
volume = "24",
number = "4",
pages = "271-281",
doi = "10.30544/403"
}
Matić, T., Ležaja-Zebić, M., Cvijović-Alagić, I., Miletić, V., Petrović, R., Janaćković, Đ.,& Veljović, Đ.. (2018). The effect of calcinated hydroxyapatite and magnesium doped hydroxyapatite as fillers on the mechanical properties of a model bisgma/tegdma dental composite initially and after aging. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 24(4), 271-281.
https://doi.org/10.30544/403
Matić T, Ležaja-Zebić M, Cvijović-Alagić I, Miletić V, Petrović R, Janaćković Đ, Veljović Đ. The effect of calcinated hydroxyapatite and magnesium doped hydroxyapatite as fillers on the mechanical properties of a model bisgma/tegdma dental composite initially and after aging. in Metallurgical & Materials Engineering. 2018;24(4):271-281.
doi:10.30544/403 .
Matić, Tamara, Ležaja-Zebić, Maja, Cvijović-Alagić, Ivana, Miletić, Vesna, Petrović, Rada, Janaćković, Đorđe, Veljović, Đorđe, "The effect of calcinated hydroxyapatite and magnesium doped hydroxyapatite as fillers on the mechanical properties of a model bisgma/tegdma dental composite initially and after aging" in Metallurgical & Materials Engineering, 24, no. 4 (2018):271-281,
https://doi.org/10.30544/403 . .
2
1

Discoloration of resin based composites in natural juices and energy drinks

Antonov, Milica; Lenhardt, Lea; Manojlović, Dragica; Milićević, Bojana; Dramićanin, Miroslav D.

(Vojnomedicinska akademija - Institut za naučne informacije, Beograd, 2018)

TY  - JOUR
AU  - Antonov, Milica
AU  - Lenhardt, Lea
AU  - Manojlović, Dragica
AU  - Milićević, Bojana
AU  - Dramićanin, Miroslav D.
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2280
AB  - Background/Aim. Discoloration of dental restorations makes them aesthetically unacceptable and is a frequent reason for replacement of composite restorations. The aim of this study was to evaluate changes of color and fluorescence of resin-based composites (RBCs) exposed to natural juices and energy drinks. Methods. Microhybrid composite Gradia Direct (TM) Extra Bleach White disc-shaped specimens (n = 35) were immersed in three different natural juices and four different energy drinks. Absorption spectra of natural juices and energy drinks, diffuse reflection and fluorescence of composite samples were measured prior and after seven-day immersion by spectrophotometer Thermo Evolution 600 and spectrofluorometer Fluorolog-3-221. Composite's color was calculated from diffuse reflection spectra and expressed in CIELAB color space (Commission International de l'Eclairage). Results. All natural juices and energy drinks induced color change of resin based composites, but to the different extent. Only aronia and carrot juices induced total color change considerably higher than clinically acceptable threshold, 9.3 and 6.2, respectively. All energy drinks and aronia juice induced notable decrease in fluorescence; the highest change of 28% was evidenced in the case of aronia juice. Conclusion. Change of color and fluorescence will appear differently with various solutions due to different chemical composition and concentration of colorant species in different beverages. Solutions with higher optical absorption induced higher total color change. Discoloration of composites in aronia and carrot juices is similar to those earlier reported for red wine, tea and coffee.
PB  - Vojnomedicinska akademija - Institut za naučne informacije, Beograd
T2  - Vojnosanitetski pregled
T1  - Discoloration of resin based composites in natural juices and energy drinks
VL  - 75
IS  - 8
SP  - 787
EP  - 794
DO  - 10.2298/VSP161018394A
ER  - 
@article{
author = "Antonov, Milica and Lenhardt, Lea and Manojlović, Dragica and Milićević, Bojana and Dramićanin, Miroslav D.",
year = "2018",
abstract = "Background/Aim. Discoloration of dental restorations makes them aesthetically unacceptable and is a frequent reason for replacement of composite restorations. The aim of this study was to evaluate changes of color and fluorescence of resin-based composites (RBCs) exposed to natural juices and energy drinks. Methods. Microhybrid composite Gradia Direct (TM) Extra Bleach White disc-shaped specimens (n = 35) were immersed in three different natural juices and four different energy drinks. Absorption spectra of natural juices and energy drinks, diffuse reflection and fluorescence of composite samples were measured prior and after seven-day immersion by spectrophotometer Thermo Evolution 600 and spectrofluorometer Fluorolog-3-221. Composite's color was calculated from diffuse reflection spectra and expressed in CIELAB color space (Commission International de l'Eclairage). Results. All natural juices and energy drinks induced color change of resin based composites, but to the different extent. Only aronia and carrot juices induced total color change considerably higher than clinically acceptable threshold, 9.3 and 6.2, respectively. All energy drinks and aronia juice induced notable decrease in fluorescence; the highest change of 28% was evidenced in the case of aronia juice. Conclusion. Change of color and fluorescence will appear differently with various solutions due to different chemical composition and concentration of colorant species in different beverages. Solutions with higher optical absorption induced higher total color change. Discoloration of composites in aronia and carrot juices is similar to those earlier reported for red wine, tea and coffee.",
publisher = "Vojnomedicinska akademija - Institut za naučne informacije, Beograd",
journal = "Vojnosanitetski pregled",
title = "Discoloration of resin based composites in natural juices and energy drinks",
volume = "75",
number = "8",
pages = "787-794",
doi = "10.2298/VSP161018394A"
}
Antonov, M., Lenhardt, L., Manojlović, D., Milićević, B.,& Dramićanin, M. D.. (2018). Discoloration of resin based composites in natural juices and energy drinks. in Vojnosanitetski pregled
Vojnomedicinska akademija - Institut za naučne informacije, Beograd., 75(8), 787-794.
https://doi.org/10.2298/VSP161018394A
Antonov M, Lenhardt L, Manojlović D, Milićević B, Dramićanin MD. Discoloration of resin based composites in natural juices and energy drinks. in Vojnosanitetski pregled. 2018;75(8):787-794.
doi:10.2298/VSP161018394A .
Antonov, Milica, Lenhardt, Lea, Manojlović, Dragica, Milićević, Bojana, Dramićanin, Miroslav D., "Discoloration of resin based composites in natural juices and energy drinks" in Vojnosanitetski pregled, 75, no. 8 (2018):787-794,
https://doi.org/10.2298/VSP161018394A . .
1

Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites

Miletić, Vesna; Jakovljević, Nikola; Manojlović, Dragica; Marjanović, Jovana; Rosić, Aleksandra A.; Dramićanin, Miroslav D.

(Wiley-Blackwell, Hoboken, 2017)

TY  - JOUR
AU  - Miletić, Vesna
AU  - Jakovljević, Nikola
AU  - Manojlović, Dragica
AU  - Marjanović, Jovana
AU  - Rosić, Aleksandra A.
AU  - Dramićanin, Miroslav D.
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2199
AB  - This study correlated the refractive indices (RIs) of unfilled resin mixtures and resin-based composites (RBCs) with color and translucency of conventional and low-shrinkage RBCs. Unfilled resin mixtures based on different ratios of conventional monomers Bisphenol A-glycidyl-methacrylate (BisGMA)/triethyleneglycol-dimethacrylate (TEGDMA) and urethane-dimethacrylate (UDMA)/TEGDMA and a low-shrinkage monomer FIT-852 (FIT, Esstech Inc.)/TEGDMA were used to prepare model RBCs, containing 30 wt % of the organic matrix and 70 wt % of silanated barium-glass fillers (n=1.553, Esstech Inc.). The RIs of resins were measured on an ABBE refractometer, those of cured RBCs using the Becke-line method in immersion oils. Color and translucency were determined using an AvaSpec-2048 (Avantes BV) spectrometer. The RIs of unfilled resin mixtures decreased with increasing amounts of TEGDMA. Cured RBCs had higher RIs than their respective resin mixtures. BisGMA-based composites were more translucent with significantly lower L* values than FIT- and UDMA-based RBCs. The RIs of unfilled resins positively correlated with cured RBCs (p=0.001), as did the RIs with translucency (p=0.001) and color (p=0.008). Resin mixtures and corresponding RBCs based on UDMA and its modified low-shrinkage version, FIT, showed similar optical properties. The RIs of unfilled resins appeared to be good predictors of the RIs of cured RBCs.
PB  - Wiley-Blackwell, Hoboken
T2  - Journal of Biomedical Materials Research Part B: Applied Biomaterials
T1  - Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites
VL  - 105
IS  - 1
SP  - 7
EP  - 13
DO  - 10.1002/jbm.b.33523
ER  - 
@article{
author = "Miletić, Vesna and Jakovljević, Nikola and Manojlović, Dragica and Marjanović, Jovana and Rosić, Aleksandra A. and Dramićanin, Miroslav D.",
year = "2017",
abstract = "This study correlated the refractive indices (RIs) of unfilled resin mixtures and resin-based composites (RBCs) with color and translucency of conventional and low-shrinkage RBCs. Unfilled resin mixtures based on different ratios of conventional monomers Bisphenol A-glycidyl-methacrylate (BisGMA)/triethyleneglycol-dimethacrylate (TEGDMA) and urethane-dimethacrylate (UDMA)/TEGDMA and a low-shrinkage monomer FIT-852 (FIT, Esstech Inc.)/TEGDMA were used to prepare model RBCs, containing 30 wt % of the organic matrix and 70 wt % of silanated barium-glass fillers (n=1.553, Esstech Inc.). The RIs of resins were measured on an ABBE refractometer, those of cured RBCs using the Becke-line method in immersion oils. Color and translucency were determined using an AvaSpec-2048 (Avantes BV) spectrometer. The RIs of unfilled resin mixtures decreased with increasing amounts of TEGDMA. Cured RBCs had higher RIs than their respective resin mixtures. BisGMA-based composites were more translucent with significantly lower L* values than FIT- and UDMA-based RBCs. The RIs of unfilled resins positively correlated with cured RBCs (p=0.001), as did the RIs with translucency (p=0.001) and color (p=0.008). Resin mixtures and corresponding RBCs based on UDMA and its modified low-shrinkage version, FIT, showed similar optical properties. The RIs of unfilled resins appeared to be good predictors of the RIs of cured RBCs.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Journal of Biomedical Materials Research Part B: Applied Biomaterials",
title = "Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites",
volume = "105",
number = "1",
pages = "7-13",
doi = "10.1002/jbm.b.33523"
}
Miletić, V., Jakovljević, N., Manojlović, D., Marjanović, J., Rosić, A. A.,& Dramićanin, M. D.. (2017). Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites. in Journal of Biomedical Materials Research Part B: Applied Biomaterials
Wiley-Blackwell, Hoboken., 105(1), 7-13.
https://doi.org/10.1002/jbm.b.33523
Miletić V, Jakovljević N, Manojlović D, Marjanović J, Rosić AA, Dramićanin MD. Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites. in Journal of Biomedical Materials Research Part B: Applied Biomaterials. 2017;105(1):7-13.
doi:10.1002/jbm.b.33523 .
Miletić, Vesna, Jakovljević, Nikola, Manojlović, Dragica, Marjanović, Jovana, Rosić, Aleksandra A., Dramićanin, Miroslav D., "Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites" in Journal of Biomedical Materials Research Part B: Applied Biomaterials, 105, no. 1 (2017):7-13,
https://doi.org/10.1002/jbm.b.33523 . .
15
10
13

Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures

Manojlović, Dragica; Dramićanin, Miroslav D.; Miletić, Vesna; Mitić-Ćulafić, Dragana; Jovanović, Bojana; Nikolić, Biljana

(Elsevier Sci Ltd, Oxford, 2017)

TY  - JOUR
AU  - Manojlović, Dragica
AU  - Dramićanin, Miroslav D.
AU  - Miletić, Vesna
AU  - Mitić-Ćulafić, Dragana
AU  - Jovanović, Bojana
AU  - Nikolić, Biljana
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2195
AB  - Objective. To compare cytotoxicity and genotoxicity of novel urethane-based monomer FIT-852 and monoacylphosphine oxide photoinitiator (Lucirin TPO) with conventional Bisphenol A-glycidyl-methacrylate (BisGMA) and triethylene glycol dimethacrylate (TEGDMA) monomers and camphorquinone (CQ)/amine photoinitiator system, respectively. Moreover, we quantified and analyzed the combinatorial effects of individual substances in resin-based mixtures concerning the nature of the combinatorial effects. Methods. Cytotoxic and genotoxic effects of BisGMA, FIT, TEGDMA, CQ DMAEMA and TPO and their combined toxicity in four clinically relevant mixtures (FIT/TPO, FIT/CQ BisGMA/TPO, BisGMA/CQ) were tested on human fetal lung fibroblasts MRC-5 using MTT and Comet assays. We assessed combination effects of monomers and photoinitiators on overall toxicity from the measured concentration-effect relationships. Combination index (CI) was calculated on the basis of the median-effect equation derived from the mass-action law principle. Results. Individual substances showed decreasing cytotoxic effects in the following order: BisGMA>TPO>FIT>CQ>DMAEMA>TEGDMA. Experimental mixtures showed decreasing cytotoxic effects in the order BisGMA/TPO>BisGMA/CQ>FIT/CQ>FIT/TPO. FIT-based mixtures exhibited antagonistic cytotoxic effects between components while BisGMA-based mixtures demonstrated synergistic effects at ED50 TPO amplified both antagonistic and synergistic cytotoxic effects in mixtures. Pure substances showed genotoxicity in the following order: TPO>BisGMA>FIT>CQ>TEGDMA. We did not detect the genotoxic potential of DMAEMA. The rank of genotoxic concentrations of the mixtures was: BisGMA/TPO>BisGMA/CQ>FIT/CQ>FIT/TPO. Significance. Lower cytotoxicity and genotoxicity of FIT than BisGMA suggests its greater bio-co mpatibility. Conversely, photoinitiator TPO was significantly more cytotoxic and genotoxic than both CQ and DMAEMA. CI values showed that components of FIT-based mixtures exhibit an antagonistic cytotoxic effect, while compontents of BisGMA-based mixtures show synergism.
PB  - Elsevier Sci Ltd, Oxford
T2  - Dental Materials
T1  - Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures
VL  - 33
IS  - 4
SP  - 454
EP  - 466
DO  - 10.1016/j.dental.2017.02.002
ER  - 
@article{
author = "Manojlović, Dragica and Dramićanin, Miroslav D. and Miletić, Vesna and Mitić-Ćulafić, Dragana and Jovanović, Bojana and Nikolić, Biljana",
year = "2017",
abstract = "Objective. To compare cytotoxicity and genotoxicity of novel urethane-based monomer FIT-852 and monoacylphosphine oxide photoinitiator (Lucirin TPO) with conventional Bisphenol A-glycidyl-methacrylate (BisGMA) and triethylene glycol dimethacrylate (TEGDMA) monomers and camphorquinone (CQ)/amine photoinitiator system, respectively. Moreover, we quantified and analyzed the combinatorial effects of individual substances in resin-based mixtures concerning the nature of the combinatorial effects. Methods. Cytotoxic and genotoxic effects of BisGMA, FIT, TEGDMA, CQ DMAEMA and TPO and their combined toxicity in four clinically relevant mixtures (FIT/TPO, FIT/CQ BisGMA/TPO, BisGMA/CQ) were tested on human fetal lung fibroblasts MRC-5 using MTT and Comet assays. We assessed combination effects of monomers and photoinitiators on overall toxicity from the measured concentration-effect relationships. Combination index (CI) was calculated on the basis of the median-effect equation derived from the mass-action law principle. Results. Individual substances showed decreasing cytotoxic effects in the following order: BisGMA>TPO>FIT>CQ>DMAEMA>TEGDMA. Experimental mixtures showed decreasing cytotoxic effects in the order BisGMA/TPO>BisGMA/CQ>FIT/CQ>FIT/TPO. FIT-based mixtures exhibited antagonistic cytotoxic effects between components while BisGMA-based mixtures demonstrated synergistic effects at ED50 TPO amplified both antagonistic and synergistic cytotoxic effects in mixtures. Pure substances showed genotoxicity in the following order: TPO>BisGMA>FIT>CQ>TEGDMA. We did not detect the genotoxic potential of DMAEMA. The rank of genotoxic concentrations of the mixtures was: BisGMA/TPO>BisGMA/CQ>FIT/CQ>FIT/TPO. Significance. Lower cytotoxicity and genotoxicity of FIT than BisGMA suggests its greater bio-co mpatibility. Conversely, photoinitiator TPO was significantly more cytotoxic and genotoxic than both CQ and DMAEMA. CI values showed that components of FIT-based mixtures exhibit an antagonistic cytotoxic effect, while compontents of BisGMA-based mixtures show synergism.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Dental Materials",
title = "Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures",
volume = "33",
number = "4",
pages = "454-466",
doi = "10.1016/j.dental.2017.02.002"
}
Manojlović, D., Dramićanin, M. D., Miletić, V., Mitić-Ćulafić, D., Jovanović, B.,& Nikolić, B.. (2017). Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures. in Dental Materials
Elsevier Sci Ltd, Oxford., 33(4), 454-466.
https://doi.org/10.1016/j.dental.2017.02.002
Manojlović D, Dramićanin MD, Miletić V, Mitić-Ćulafić D, Jovanović B, Nikolić B. Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures. in Dental Materials. 2017;33(4):454-466.
doi:10.1016/j.dental.2017.02.002 .
Manojlović, Dragica, Dramićanin, Miroslav D., Miletić, Vesna, Mitić-Ćulafić, Dragana, Jovanović, Bojana, Nikolić, Biljana, "Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures" in Dental Materials, 33, no. 4 (2017):454-466,
https://doi.org/10.1016/j.dental.2017.02.002 . .
3
23
17
22

Curing characteristics of flowable and sculptable bulk-fill composites

Miletić, Vesna; Pongprueksa, Pong; de Munck, Jan; Brooks, Neil R.; Van Meerbeek, Bart

(Springer Heidelberg, Heidelberg, 2017)

TY  - JOUR
AU  - Miletić, Vesna
AU  - Pongprueksa, Pong
AU  - de Munck, Jan
AU  - Brooks, Neil R.
AU  - Van Meerbeek, Bart
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2191
AB  - The aim of this study was to determine and correlate the degree of conversion (DC) with Vickers hardness (VH) and translucency parameter (TP) with the depth of cure (DoC) of five bulk-fill composites. Six specimens per group, consisting of Tetric EvoCeram Bulk Fill ("TEC Bulk," Ivoclar Vivadent), SonicFill (Kerr), SDR Smart Dentin Replacement ("SDR," Dentsply), Xenius base ("Xenius," StickTech; commercialized as EverX Posterior, GC), Filtek Bulk Fill flowable ("Filtek Bulk," 3M ESPE), and Tetric EvoCeram ("TEC," control), were prepared for DC and VH: two 2-mm-thick layers, each light-cured for 10 s; one 4-mm bulk-fill, light-cured for 10 or 20 s; and one 6-mm bulk-fill, cured for 20 s. DC was measured using a Fourier-transform infrared spectrometer, VH using a Vickers hardness tester. DoC and TP were measured using an acetone-shaking test and a spectrophotometer, respectively. Data were analyzed using ANOVA and Pearson's correlation (alpha = 0.05). DC and VH ranged between 40-70 % and 30-80 VHN, respectively. TEC Bulk, Xenius, and SonicFill, bulk-filled as 4-mm-thick specimens, showed bottom-to-top hardness ratios above 80 % after 20 s curing. A positive linear correlation was found for bottom DC and VH. An average DC ratio of 0.9 corresponded to a bottom-to-top VH ratio of 0.8. Sculptable bulk-fills require 20 s, whereas 10 s curing time was sufficient for flowable bulk-fills using a high-intensity LED unit. Clinicians should be aware that longer curing times may be required for sculptable than flowable bulk-fill composites in order to achieve optimal curing characteristics.
PB  - Springer Heidelberg, Heidelberg
T2  - Clinical Oral Investigations
T1  - Curing characteristics of flowable and sculptable bulk-fill composites
VL  - 21
IS  - 4
SP  - 1201
EP  - 1212
DO  - 10.1007/s00784-016-1894-0
ER  - 
@article{
author = "Miletić, Vesna and Pongprueksa, Pong and de Munck, Jan and Brooks, Neil R. and Van Meerbeek, Bart",
year = "2017",
abstract = "The aim of this study was to determine and correlate the degree of conversion (DC) with Vickers hardness (VH) and translucency parameter (TP) with the depth of cure (DoC) of five bulk-fill composites. Six specimens per group, consisting of Tetric EvoCeram Bulk Fill ("TEC Bulk," Ivoclar Vivadent), SonicFill (Kerr), SDR Smart Dentin Replacement ("SDR," Dentsply), Xenius base ("Xenius," StickTech; commercialized as EverX Posterior, GC), Filtek Bulk Fill flowable ("Filtek Bulk," 3M ESPE), and Tetric EvoCeram ("TEC," control), were prepared for DC and VH: two 2-mm-thick layers, each light-cured for 10 s; one 4-mm bulk-fill, light-cured for 10 or 20 s; and one 6-mm bulk-fill, cured for 20 s. DC was measured using a Fourier-transform infrared spectrometer, VH using a Vickers hardness tester. DoC and TP were measured using an acetone-shaking test and a spectrophotometer, respectively. Data were analyzed using ANOVA and Pearson's correlation (alpha = 0.05). DC and VH ranged between 40-70 % and 30-80 VHN, respectively. TEC Bulk, Xenius, and SonicFill, bulk-filled as 4-mm-thick specimens, showed bottom-to-top hardness ratios above 80 % after 20 s curing. A positive linear correlation was found for bottom DC and VH. An average DC ratio of 0.9 corresponded to a bottom-to-top VH ratio of 0.8. Sculptable bulk-fills require 20 s, whereas 10 s curing time was sufficient for flowable bulk-fills using a high-intensity LED unit. Clinicians should be aware that longer curing times may be required for sculptable than flowable bulk-fill composites in order to achieve optimal curing characteristics.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Clinical Oral Investigations",
title = "Curing characteristics of flowable and sculptable bulk-fill composites",
volume = "21",
number = "4",
pages = "1201-1212",
doi = "10.1007/s00784-016-1894-0"
}
Miletić, V., Pongprueksa, P., de Munck, J., Brooks, N. R.,& Van Meerbeek, B.. (2017). Curing characteristics of flowable and sculptable bulk-fill composites. in Clinical Oral Investigations
Springer Heidelberg, Heidelberg., 21(4), 1201-1212.
https://doi.org/10.1007/s00784-016-1894-0
Miletić V, Pongprueksa P, de Munck J, Brooks NR, Van Meerbeek B. Curing characteristics of flowable and sculptable bulk-fill composites. in Clinical Oral Investigations. 2017;21(4):1201-1212.
doi:10.1007/s00784-016-1894-0 .
Miletić, Vesna, Pongprueksa, Pong, de Munck, Jan, Brooks, Neil R., Van Meerbeek, Bart, "Curing characteristics of flowable and sculptable bulk-fill composites" in Clinical Oral Investigations, 21, no. 4 (2017):1201-1212,
https://doi.org/10.1007/s00784-016-1894-0 . .
57
33
43

Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites

Manojlović, Dragica; Dramićanin, Miroslav D.; Ležaja, Maja; Pongprueksa, Pong; Van Meerbeek, Bart; Miletić, Vesna

(Elsevier Sci Ltd, Oxford, 2016)

TY  - JOUR
AU  - Manojlović, Dragica
AU  - Dramićanin, Miroslav D.
AU  - Ležaja, Maja
AU  - Pongprueksa, Pong
AU  - Van Meerbeek, Bart
AU  - Miletić, Vesna
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2145
AB  - Objective. To study the effect of a low-shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on color, translucency, and color stability of model resin-based composites (RBCs). Methods. Four micro-hybrid RBCs were prepared containing barium-glass fillers in bisphenol A-glycidyl-methacrylate (BisGMA) and triethyleneglycol-dimethacrylate (TEGDMA) or urethane-based low-shrinkage monomer FIT-852 (FIT; Esstech Inc.) and TEGDMA matrix. Camphorquinone (CQ)/amine or Lucirin TPO were used as photoinitiators. Commercial low-shrinkage RBCs (Charisma Diamond, Heraeus Kulzer and N'Durance, Septodont) and conventional RBCs (Tetric EvoCeram, Ivoclar Vivadent and Filtek Z250, 3M ESPE) were used as controls. Color and translucency were measured using Thermo Scientific Evolution (Thermo Fisher Scientific) and SpectroShade (TM) Micro (MHT Optic Research) spectrophotometers. Color stability was evaluated after immersion in black tea (pure, with milk or lemon) and distilled water. Data were analyzed using analyses of variance with Tukey's post-test (alpha = 0.05). Results. Photoinitiators had no significant effect on baseline color. Initially whiter FIT-based RBCs showed greater staining in all staining solutions than BisGMA-based RBCs. TPO-containing RBCs showed better color stability than CQ-containing RBCs irrespective of the base monomer. Tea and tea with lemon induced greatest color changes. Adding milk to tea significantly reduced material staining. Significance. Urethane-based low-shrinkage monomer FIT and conventional BisGMA affected color, translucency and color stability of their respective RBCs. Despite being used in posterior teeth, low-shrinkage RBCs are expected to have favorable optical and esthetic properties. Manufacturers are urged to provide information on optical properties of monomers and monomer mixtures in their low-shrinkage RBCs to allow understanding of interaction with fillers and photoinitiators.
PB  - Elsevier Sci Ltd, Oxford
T2  - Dental Materials
T1  - Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites
VL  - 32
IS  - 2
SP  - 183
EP  - 191
DO  - 10.1016/j.dental.2015.11.027
ER  - 
@article{
author = "Manojlović, Dragica and Dramićanin, Miroslav D. and Ležaja, Maja and Pongprueksa, Pong and Van Meerbeek, Bart and Miletić, Vesna",
year = "2016",
abstract = "Objective. To study the effect of a low-shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on color, translucency, and color stability of model resin-based composites (RBCs). Methods. Four micro-hybrid RBCs were prepared containing barium-glass fillers in bisphenol A-glycidyl-methacrylate (BisGMA) and triethyleneglycol-dimethacrylate (TEGDMA) or urethane-based low-shrinkage monomer FIT-852 (FIT; Esstech Inc.) and TEGDMA matrix. Camphorquinone (CQ)/amine or Lucirin TPO were used as photoinitiators. Commercial low-shrinkage RBCs (Charisma Diamond, Heraeus Kulzer and N'Durance, Septodont) and conventional RBCs (Tetric EvoCeram, Ivoclar Vivadent and Filtek Z250, 3M ESPE) were used as controls. Color and translucency were measured using Thermo Scientific Evolution (Thermo Fisher Scientific) and SpectroShade (TM) Micro (MHT Optic Research) spectrophotometers. Color stability was evaluated after immersion in black tea (pure, with milk or lemon) and distilled water. Data were analyzed using analyses of variance with Tukey's post-test (alpha = 0.05). Results. Photoinitiators had no significant effect on baseline color. Initially whiter FIT-based RBCs showed greater staining in all staining solutions than BisGMA-based RBCs. TPO-containing RBCs showed better color stability than CQ-containing RBCs irrespective of the base monomer. Tea and tea with lemon induced greatest color changes. Adding milk to tea significantly reduced material staining. Significance. Urethane-based low-shrinkage monomer FIT and conventional BisGMA affected color, translucency and color stability of their respective RBCs. Despite being used in posterior teeth, low-shrinkage RBCs are expected to have favorable optical and esthetic properties. Manufacturers are urged to provide information on optical properties of monomers and monomer mixtures in their low-shrinkage RBCs to allow understanding of interaction with fillers and photoinitiators.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Dental Materials",
title = "Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites",
volume = "32",
number = "2",
pages = "183-191",
doi = "10.1016/j.dental.2015.11.027"
}
Manojlović, D., Dramićanin, M. D., Ležaja, M., Pongprueksa, P., Van Meerbeek, B.,& Miletić, V.. (2016). Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites. in Dental Materials
Elsevier Sci Ltd, Oxford., 32(2), 183-191.
https://doi.org/10.1016/j.dental.2015.11.027
Manojlović D, Dramićanin MD, Ležaja M, Pongprueksa P, Van Meerbeek B, Miletić V. Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites. in Dental Materials. 2016;32(2):183-191.
doi:10.1016/j.dental.2015.11.027 .
Manojlović, Dragica, Dramićanin, Miroslav D., Ležaja, Maja, Pongprueksa, Pong, Van Meerbeek, Bart, Miletić, Vesna, "Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites" in Dental Materials, 32, no. 2 (2016):183-191,
https://doi.org/10.1016/j.dental.2015.11.027 . .
39
24
33

Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites

Manojlović, Dragica; Dramićanin, Miroslav D.; Milošević, Miloš; Zeković, Ivana; Cvijović-Alagić, Ivana; Mitrović, Nenad; Miletić, Vesna

(Elsevier, Amsterdam, 2016)

TY  - JOUR
AU  - Manojlović, Dragica
AU  - Dramićanin, Miroslav D.
AU  - Milošević, Miloš
AU  - Zeković, Ivana
AU  - Cvijović-Alagić, Ivana
AU  - Mitrović, Nenad
AU  - Miletić, Vesna
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2132
AB  - This study investigated the degree of conversion, depth of cure, Vickers hardness, flexural strength, flexural modulus and volumetric shrinkage of experimental composite containing a low shrinkage monomer FIT-852 (FIT; Esstech Inc.) and photoinitiator 2,4,6-trimethylbenzoyldiphenylphosphine oxide (TPO; Sigma Aldrich) compared to conventional composite containing Bisphenol A-glycidyl methacrylate (BisGMA) and camphorquinone-amine photoinitiator system. The degree of conversion was generally higher in FIT-based composites (45-64% range) than in BisGMA-based composites (34-58% range). Vickers hardness, flexural strength and modulus were higher in BisGMA-based composites. A polywave light-curing unit was generally more efficient in terms of conversion and hardness of experimental composites than a monowave unit. FIT-based composite containing TPO showed the depth of cure below 2 mm irrespective of the curing light. The depth of cure of FIT-based composite containing CQ and BisGMA-based composites with either photoinitiator was in the range of 2.8-3.0 mm. Volumetric shrinkage of FIT-based composite (0.9-5.7% range) was lower than that of BisGMA-based composite (2.2-12% range). FIT may be used as a shrinkage reducing monomer compatible with the conventional CQ-amine system as well as the alternative TPO photoinitiator. However, the depth of cure of FIT_TPO composite requires boosting to achieve clinically recommended thickness of 2 mm.
PB  - Elsevier, Amsterdam
T2  - Materials Science & Engineering C - Materials for Biological Applications
T1  - Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites
VL  - 58
SP  - 487
EP  - 494
DO  - 10.1016/j.msec.2015.08.054
ER  - 
@article{
author = "Manojlović, Dragica and Dramićanin, Miroslav D. and Milošević, Miloš and Zeković, Ivana and Cvijović-Alagić, Ivana and Mitrović, Nenad and Miletić, Vesna",
year = "2016",
abstract = "This study investigated the degree of conversion, depth of cure, Vickers hardness, flexural strength, flexural modulus and volumetric shrinkage of experimental composite containing a low shrinkage monomer FIT-852 (FIT; Esstech Inc.) and photoinitiator 2,4,6-trimethylbenzoyldiphenylphosphine oxide (TPO; Sigma Aldrich) compared to conventional composite containing Bisphenol A-glycidyl methacrylate (BisGMA) and camphorquinone-amine photoinitiator system. The degree of conversion was generally higher in FIT-based composites (45-64% range) than in BisGMA-based composites (34-58% range). Vickers hardness, flexural strength and modulus were higher in BisGMA-based composites. A polywave light-curing unit was generally more efficient in terms of conversion and hardness of experimental composites than a monowave unit. FIT-based composite containing TPO showed the depth of cure below 2 mm irrespective of the curing light. The depth of cure of FIT-based composite containing CQ and BisGMA-based composites with either photoinitiator was in the range of 2.8-3.0 mm. Volumetric shrinkage of FIT-based composite (0.9-5.7% range) was lower than that of BisGMA-based composite (2.2-12% range). FIT may be used as a shrinkage reducing monomer compatible with the conventional CQ-amine system as well as the alternative TPO photoinitiator. However, the depth of cure of FIT_TPO composite requires boosting to achieve clinically recommended thickness of 2 mm.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Science & Engineering C - Materials for Biological Applications",
title = "Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites",
volume = "58",
pages = "487-494",
doi = "10.1016/j.msec.2015.08.054"
}
Manojlović, D., Dramićanin, M. D., Milošević, M., Zeković, I., Cvijović-Alagić, I., Mitrović, N.,& Miletić, V.. (2016). Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites. in Materials Science & Engineering C - Materials for Biological Applications
Elsevier, Amsterdam., 58, 487-494.
https://doi.org/10.1016/j.msec.2015.08.054
Manojlović D, Dramićanin MD, Milošević M, Zeković I, Cvijović-Alagić I, Mitrović N, Miletić V. Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites. in Materials Science & Engineering C - Materials for Biological Applications. 2016;58:487-494.
doi:10.1016/j.msec.2015.08.054 .
Manojlović, Dragica, Dramićanin, Miroslav D., Milošević, Miloš, Zeković, Ivana, Cvijović-Alagić, Ivana, Mitrović, Nenad, Miletić, Vesna, "Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites" in Materials Science & Engineering C - Materials for Biological Applications, 58 (2016):487-494,
https://doi.org/10.1016/j.msec.2015.08.054 . .
26
20
27

Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites

Miletić, Vesna; Perić, Dejan; Milošević, Miloš; Manojlović, Dragica; Mitrović, Nenad

(Elsevier Sci Ltd, Oxford, 2016)

TY  - JOUR
AU  - Miletić, Vesna
AU  - Perić, Dejan
AU  - Milošević, Miloš
AU  - Manojlović, Dragica
AU  - Mitrović, Nenad
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2118
AB  - Objective. To compare strain and displacement of sculptable bulk-fill, low-shrinkage and conventional composites as well as dye penetration along the dentin-restoration interface. Methods. Modified Class II cavities (N= 5/group) were filled with sculptable bulk-fill (Filtek Bulk Fill Posterior, 3M ESPE; Tetric EvoCeram Bulk Fill, Ivoclar Vivadent; fiber-reinforced EverX Posterior, GC; giomer Beautifil Bulk, Schofu), low-shrinkage (Kalore, GC), nanohybrid (Tetric EvoCeram, Ivoclar Vivadent) or microhybrid (Filtek Z250, 3M ESPE) composites. Strain and displacement were determined using the 3D digital image correlation method based on two cameras with 1 mu m displacement sensitivity and 1600 x 1200 pixel resolution (Aramis, GOM). Microleakage along dentin axial and gingival cavity walls was measured under a stereomicroscope using a different set of teeth (N = 8/group). Data were analyzed using analyses of variance with Tukey's post-test, Pearson correlation and paired t-test (alpha = 0.05). Results. Strain of TEC Bulk, Filtek Bulk, Beautifil Bulk and Kalore was in the range of 1-1.5%. EverX and control composites showed 1.5-2% strain. Axial displacements were between 5 mu m and 30 mu m The least strain was identified at 2 mm below the occlusal surface in 4-mm but not in 2-mm layered composites. Greater microleakage occurred along the gingival than axial wall (p  lt  0.05). No correlation was found between strain/displacements and microleakage axially (r(2) = 0.082, p = 0.821; r(2) =-0.2, p = 0.605, respectively) or gingivally (r(2) =-0.126, p = 0.729, r(2) =-0.278, p = 0.469, respectively). Significance. Strain i.e. volumetric shrinkage of sculptable bulk-fill and low-shrinkage composites was comparable to control composites but strain distribution across restoration depth differed. Marginal integrity was more compromised along the gingival than axial dentin wall.
PB  - Elsevier Sci Ltd, Oxford
T2  - Dental Materials
T1  - Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites
VL  - 32
IS  - 11
SP  - 1441
EP  - 1451
DO  - 10.1016/j.dental.2016.09.011
ER  - 
@article{
author = "Miletić, Vesna and Perić, Dejan and Milošević, Miloš and Manojlović, Dragica and Mitrović, Nenad",
year = "2016",
abstract = "Objective. To compare strain and displacement of sculptable bulk-fill, low-shrinkage and conventional composites as well as dye penetration along the dentin-restoration interface. Methods. Modified Class II cavities (N= 5/group) were filled with sculptable bulk-fill (Filtek Bulk Fill Posterior, 3M ESPE; Tetric EvoCeram Bulk Fill, Ivoclar Vivadent; fiber-reinforced EverX Posterior, GC; giomer Beautifil Bulk, Schofu), low-shrinkage (Kalore, GC), nanohybrid (Tetric EvoCeram, Ivoclar Vivadent) or microhybrid (Filtek Z250, 3M ESPE) composites. Strain and displacement were determined using the 3D digital image correlation method based on two cameras with 1 mu m displacement sensitivity and 1600 x 1200 pixel resolution (Aramis, GOM). Microleakage along dentin axial and gingival cavity walls was measured under a stereomicroscope using a different set of teeth (N = 8/group). Data were analyzed using analyses of variance with Tukey's post-test, Pearson correlation and paired t-test (alpha = 0.05). Results. Strain of TEC Bulk, Filtek Bulk, Beautifil Bulk and Kalore was in the range of 1-1.5%. EverX and control composites showed 1.5-2% strain. Axial displacements were between 5 mu m and 30 mu m The least strain was identified at 2 mm below the occlusal surface in 4-mm but not in 2-mm layered composites. Greater microleakage occurred along the gingival than axial wall (p  lt  0.05). No correlation was found between strain/displacements and microleakage axially (r(2) = 0.082, p = 0.821; r(2) =-0.2, p = 0.605, respectively) or gingivally (r(2) =-0.126, p = 0.729, r(2) =-0.278, p = 0.469, respectively). Significance. Strain i.e. volumetric shrinkage of sculptable bulk-fill and low-shrinkage composites was comparable to control composites but strain distribution across restoration depth differed. Marginal integrity was more compromised along the gingival than axial dentin wall.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Dental Materials",
title = "Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites",
volume = "32",
number = "11",
pages = "1441-1451",
doi = "10.1016/j.dental.2016.09.011"
}
Miletić, V., Perić, D., Milošević, M., Manojlović, D.,& Mitrović, N.. (2016). Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites. in Dental Materials
Elsevier Sci Ltd, Oxford., 32(11), 1441-1451.
https://doi.org/10.1016/j.dental.2016.09.011
Miletić V, Perić D, Milošević M, Manojlović D, Mitrović N. Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites. in Dental Materials. 2016;32(11):1441-1451.
doi:10.1016/j.dental.2016.09.011 .
Miletić, Vesna, Perić, Dejan, Milošević, Miloš, Manojlović, Dragica, Mitrović, Nenad, "Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites" in Dental Materials, 32, no. 11 (2016):1441-1451,
https://doi.org/10.1016/j.dental.2016.09.011 . .
31
23
32

Changes of Color and Fluorescence of Resin Composites Immersed in Beer

Antonov, Milica; Lenhardt, Lea; Manojlović, Dragica; Milićević, Bojana; Zeković, Ivana; Dramićanin, Miroslav D.

(Wiley, Hoboken, 2016)

TY  - JOUR
AU  - Antonov, Milica
AU  - Lenhardt, Lea
AU  - Manojlović, Dragica
AU  - Milićević, Bojana
AU  - Zeković, Ivana
AU  - Dramićanin, Miroslav D.
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2103
AB  - ObjectiveThe aim of this study was to evaluate changes of color and fluorescence of resin based composite exposed to beer. Materials and Methods84 samples (13 mm in diameter and 1.5 mm thick) of microhybrid composite Gradia Direct(TM) extra bleach white were immersed in 5 different beers (dark and light) or distilled water. Color and fluorescence were measured prior and after 1-, 7-, and 14-day immersion by Spectrophotometer Thermo Evolution 600 and Fluorolog-3-221 spectrofluorometer. ResultsResin based composites changed color after immersion in beers of different types. Beers with higher optical absorption induced greater color changes. The fluorescence intensity of composites was decreased after immersion in beer, but the shape of fluorescence spectra was not changed. 14-day immersion in Bernard dark beer caused the greatest changes in optical properties of composite: E*=9.0 and 57.6% reduced fluorescence. ConclusionDark and light beers changed optical properties of resin based composite. The color change come exclusively from the change of chroma. Clinical SignificanceTo fully meet esthetic criteria when using dental materials in restoration it is crucial to match optical properties of teeth and dental restoration at the moment of placement, but also to keep the match over the time. Considering that staining in beer causes changes in color and fluorescence of composites and that discoloration is a frequent reason for replacement of composite restorations, the data and conclusions on discoloration of dental restorations caused by beer consumption should aid dental professionals when reaching for high esthetics of modern dentistry.(J Esthet Restor Dent 28:330-338, 2016)
PB  - Wiley, Hoboken
T2  - Journal of Esthetic & Restorative Dentistry
T1  - Changes of Color and Fluorescence of Resin Composites Immersed in Beer
VL  - 28
IS  - 5
SP  - 330
EP  - 338
DO  - 10.1111/jerd.12232
ER  - 
@article{
author = "Antonov, Milica and Lenhardt, Lea and Manojlović, Dragica and Milićević, Bojana and Zeković, Ivana and Dramićanin, Miroslav D.",
year = "2016",
abstract = "ObjectiveThe aim of this study was to evaluate changes of color and fluorescence of resin based composite exposed to beer. Materials and Methods84 samples (13 mm in diameter and 1.5 mm thick) of microhybrid composite Gradia Direct(TM) extra bleach white were immersed in 5 different beers (dark and light) or distilled water. Color and fluorescence were measured prior and after 1-, 7-, and 14-day immersion by Spectrophotometer Thermo Evolution 600 and Fluorolog-3-221 spectrofluorometer. ResultsResin based composites changed color after immersion in beers of different types. Beers with higher optical absorption induced greater color changes. The fluorescence intensity of composites was decreased after immersion in beer, but the shape of fluorescence spectra was not changed. 14-day immersion in Bernard dark beer caused the greatest changes in optical properties of composite: E*=9.0 and 57.6% reduced fluorescence. ConclusionDark and light beers changed optical properties of resin based composite. The color change come exclusively from the change of chroma. Clinical SignificanceTo fully meet esthetic criteria when using dental materials in restoration it is crucial to match optical properties of teeth and dental restoration at the moment of placement, but also to keep the match over the time. Considering that staining in beer causes changes in color and fluorescence of composites and that discoloration is a frequent reason for replacement of composite restorations, the data and conclusions on discoloration of dental restorations caused by beer consumption should aid dental professionals when reaching for high esthetics of modern dentistry.(J Esthet Restor Dent 28:330-338, 2016)",
publisher = "Wiley, Hoboken",
journal = "Journal of Esthetic & Restorative Dentistry",
title = "Changes of Color and Fluorescence of Resin Composites Immersed in Beer",
volume = "28",
number = "5",
pages = "330-338",
doi = "10.1111/jerd.12232"
}
Antonov, M., Lenhardt, L., Manojlović, D., Milićević, B., Zeković, I.,& Dramićanin, M. D.. (2016). Changes of Color and Fluorescence of Resin Composites Immersed in Beer. in Journal of Esthetic & Restorative Dentistry
Wiley, Hoboken., 28(5), 330-338.
https://doi.org/10.1111/jerd.12232
Antonov M, Lenhardt L, Manojlović D, Milićević B, Zeković I, Dramićanin MD. Changes of Color and Fluorescence of Resin Composites Immersed in Beer. in Journal of Esthetic & Restorative Dentistry. 2016;28(5):330-338.
doi:10.1111/jerd.12232 .
Antonov, Milica, Lenhardt, Lea, Manojlović, Dragica, Milićević, Bojana, Zeković, Ivana, Dramićanin, Miroslav D., "Changes of Color and Fluorescence of Resin Composites Immersed in Beer" in Journal of Esthetic & Restorative Dentistry, 28, no. 5 (2016):330-338,
https://doi.org/10.1111/jerd.12232 . .
9
6
9

Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers

Ležaja, Maja; Jokić, Bojan; Veljović, Đorđe; Miletić, Vesna

(Taylor & Francis Ltd, Abingdon, 2016)

TY  - JOUR
AU  - Ležaja, Maja
AU  - Jokić, Bojan
AU  - Veljović, Đorđe
AU  - Miletić, Vesna
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2100
AB  - The aim of this study was to compare the effect of hydroxyapatite (HAP) nano-rods (HAP rods) and HAP nano-sticks (HAP sticks) added to commercial adhesives on the macro-shear bond strength (SBS) to dentine and morphology of the adhesive-dentine interface. HAP was added to Single Bond Universal (SBU, 3M ESPE) and Te-Econom Bond (TeE; Ivoclar Vivadent), in the form of water suspensions to avoid agglomeration of nano-particles and to achieve HAP concentrations of 0.5, 1.0 and 1.5 wt%. Following a 'total-etch' or a 'self-etch' protocol, the adhesives were applied to flat dentine surface of 162 intact human, third molars (N = 6/group). Composite (Z250, 3M ESPE) was built-up using a split stainless steel mould, 3 mm in diameter. SBS was tested using a universal testing machine at 1 mm/min until fracture. Data were statistically analysed using two-way and one-way analysis of variance with Tukey's post-test (alpha = 0.05). HAP(rods) had no significant effect on SBS of the tested adhesives while HAP(sticks) improved bond strength to dentine only of adhesives applied following the 'total-etch' total-etch protocol. SBS values of SBU containing 1% HAP(sticks) (15.10 +/- 2.96 MPa) and TeE containing 0.5% HAP(sticks) applied following the total-etch protocol (12.96 +/- 4.48 MPa) were higher than those of their respective control groups (10.36 +/- 2.68 and 7.97 +/- 3.64 MPa). Samples with higher SBS showed more 'mixed' failures. HAP nano-fillers may improve bond strength of total-etch adhesives without an adverse effect on adhesive dispersion on dentine and its ability to infiltrate dentinal tubules.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of Adhesion Science & Technology
T1  - Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers
VL  - 30
IS  - 24
SP  - 2678
EP  - 2689
DO  - 10.1080/01694243.2016.1197086
ER  - 
@article{
author = "Ležaja, Maja and Jokić, Bojan and Veljović, Đorđe and Miletić, Vesna",
year = "2016",
abstract = "The aim of this study was to compare the effect of hydroxyapatite (HAP) nano-rods (HAP rods) and HAP nano-sticks (HAP sticks) added to commercial adhesives on the macro-shear bond strength (SBS) to dentine and morphology of the adhesive-dentine interface. HAP was added to Single Bond Universal (SBU, 3M ESPE) and Te-Econom Bond (TeE; Ivoclar Vivadent), in the form of water suspensions to avoid agglomeration of nano-particles and to achieve HAP concentrations of 0.5, 1.0 and 1.5 wt%. Following a 'total-etch' or a 'self-etch' protocol, the adhesives were applied to flat dentine surface of 162 intact human, third molars (N = 6/group). Composite (Z250, 3M ESPE) was built-up using a split stainless steel mould, 3 mm in diameter. SBS was tested using a universal testing machine at 1 mm/min until fracture. Data were statistically analysed using two-way and one-way analysis of variance with Tukey's post-test (alpha = 0.05). HAP(rods) had no significant effect on SBS of the tested adhesives while HAP(sticks) improved bond strength to dentine only of adhesives applied following the 'total-etch' total-etch protocol. SBS values of SBU containing 1% HAP(sticks) (15.10 +/- 2.96 MPa) and TeE containing 0.5% HAP(sticks) applied following the total-etch protocol (12.96 +/- 4.48 MPa) were higher than those of their respective control groups (10.36 +/- 2.68 and 7.97 +/- 3.64 MPa). Samples with higher SBS showed more 'mixed' failures. HAP nano-fillers may improve bond strength of total-etch adhesives without an adverse effect on adhesive dispersion on dentine and its ability to infiltrate dentinal tubules.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of Adhesion Science & Technology",
title = "Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers",
volume = "30",
number = "24",
pages = "2678-2689",
doi = "10.1080/01694243.2016.1197086"
}
Ležaja, M., Jokić, B., Veljović, Đ.,& Miletić, V.. (2016). Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers. in Journal of Adhesion Science & Technology
Taylor & Francis Ltd, Abingdon., 30(24), 2678-2689.
https://doi.org/10.1080/01694243.2016.1197086
Ležaja M, Jokić B, Veljović Đ, Miletić V. Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers. in Journal of Adhesion Science & Technology. 2016;30(24):2678-2689.
doi:10.1080/01694243.2016.1197086 .
Ležaja, Maja, Jokić, Bojan, Veljović, Đorđe, Miletić, Vesna, "Shear bond strength to dentine of dental adhesives containing hydroxyapatite nano-fillers" in Journal of Adhesion Science & Technology, 30, no. 24 (2016):2678-2689,
https://doi.org/10.1080/01694243.2016.1197086 . .
8
8
9

Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study

Petrović, V.; Opačić-Galić, Vanja; Živković, Slavoljub; Nikolić, B.; Danilović, Vesna; Miletić, Vesna; Jokanović, Vukoman; Mitić-Ćulafić, Dragana

(Wiley, Hoboken, 2015)

TY  - JOUR
AU  - Petrović, V.
AU  - Opačić-Galić, Vanja
AU  - Živković, Slavoljub
AU  - Nikolić, B.
AU  - Danilović, Vesna
AU  - Miletić, Vesna
AU  - Jokanović, Vukoman
AU  - Mitić-Ćulafić, Dragana
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2518
AB  - AimTo evaluate in vitro cytotoxicity and in vivo inflammatory response to new nanostructural materials based on active calcium silicate systems (CS) and hydroxyapatite (HA-CS). MethodologyCytotoxicity of eluates of new nanostructural noncommercial materials CS and HA-CS, and MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil) as a control, were tested using the MTT assay on MRC-5 cells. Eluates of set materials were tested in 100% and 50% concentrations, 24h, 7days and 21days post-elution. The pH values were determined for undiluted eluates of set materials. Polyethylene tubes containing the test materials (CS, HA-CS, MTA) were implanted in subcutaneous tissue of Wistar rats. Histopathological examinations were conducted at 7, 15, 30 and 60days after the implantation. Data were statistically analyzed using three-way and one-way anova Tukey's post hoc test as well as Kruskall-Wallis test with Dunn's post hoc test at =0.05. ResultsAll materials significantly reduced cell viability; especially when undiluted eluates were used (P lt 0.001). After 24h elution, cell viability was 101.8%, 49.5 +/- 4.2% and 61 +/- 7.4%, for MTA, and HA-CS, respectively. However, CS and HA-CS were significantly less toxic than the control material MTA (P lt 0.05). Cytotoxicity could be at least partially attributed to pH kinetics over time. Dilution of eluates of all tested materials resulted in better cell survival. Histopathological examination indicated similar inflammatory reaction, vascular congestion and connective tissue integrity associated with CS, HA-CS and MTA at each observation period (P>0.05). The only significant difference was found for capsule thickness, that is thicker capsule was associated with HA-CS compared to MTA at 60days (P=0.0039). HA-CS induced moderately thick capsules (median score 3, score range 2-3), whereas MTA resulted in thin capsule formation (median score 2, score range 1-3). ConclusionsEvaluation of cytotoxicity and inflammatory response indicated better biocompatibility of CS and HA-CS, in comparison with MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil).
PB  - Wiley, Hoboken
T2  - International Endodontic Journal
T1  - Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study
VL  - 48
IS  - 10
SP  - 966
EP  - 975
DO  - 10.1111/iej.12391
ER  - 
@article{
author = "Petrović, V. and Opačić-Galić, Vanja and Živković, Slavoljub and Nikolić, B. and Danilović, Vesna and Miletić, Vesna and Jokanović, Vukoman and Mitić-Ćulafić, Dragana",
year = "2015",
abstract = "AimTo evaluate in vitro cytotoxicity and in vivo inflammatory response to new nanostructural materials based on active calcium silicate systems (CS) and hydroxyapatite (HA-CS). MethodologyCytotoxicity of eluates of new nanostructural noncommercial materials CS and HA-CS, and MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil) as a control, were tested using the MTT assay on MRC-5 cells. Eluates of set materials were tested in 100% and 50% concentrations, 24h, 7days and 21days post-elution. The pH values were determined for undiluted eluates of set materials. Polyethylene tubes containing the test materials (CS, HA-CS, MTA) were implanted in subcutaneous tissue of Wistar rats. Histopathological examinations were conducted at 7, 15, 30 and 60days after the implantation. Data were statistically analyzed using three-way and one-way anova Tukey's post hoc test as well as Kruskall-Wallis test with Dunn's post hoc test at =0.05. ResultsAll materials significantly reduced cell viability; especially when undiluted eluates were used (P lt 0.001). After 24h elution, cell viability was 101.8%, 49.5 +/- 4.2% and 61 +/- 7.4%, for MTA, and HA-CS, respectively. However, CS and HA-CS were significantly less toxic than the control material MTA (P lt 0.05). Cytotoxicity could be at least partially attributed to pH kinetics over time. Dilution of eluates of all tested materials resulted in better cell survival. Histopathological examination indicated similar inflammatory reaction, vascular congestion and connective tissue integrity associated with CS, HA-CS and MTA at each observation period (P>0.05). The only significant difference was found for capsule thickness, that is thicker capsule was associated with HA-CS compared to MTA at 60days (P=0.0039). HA-CS induced moderately thick capsules (median score 3, score range 2-3), whereas MTA resulted in thin capsule formation (median score 2, score range 1-3). ConclusionsEvaluation of cytotoxicity and inflammatory response indicated better biocompatibility of CS and HA-CS, in comparison with MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil).",
publisher = "Wiley, Hoboken",
journal = "International Endodontic Journal",
title = "Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study",
volume = "48",
number = "10",
pages = "966-975",
doi = "10.1111/iej.12391"
}
Petrović, V., Opačić-Galić, V., Živković, S., Nikolić, B., Danilović, V., Miletić, V., Jokanović, V.,& Mitić-Ćulafić, D.. (2015). Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study. in International Endodontic Journal
Wiley, Hoboken., 48(10), 966-975.
https://doi.org/10.1111/iej.12391
Petrović V, Opačić-Galić V, Živković S, Nikolić B, Danilović V, Miletić V, Jokanović V, Mitić-Ćulafić D. Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study. in International Endodontic Journal. 2015;48(10):966-975.
doi:10.1111/iej.12391 .
Petrović, V., Opačić-Galić, Vanja, Živković, Slavoljub, Nikolić, B., Danilović, Vesna, Miletić, Vesna, Jokanović, Vukoman, Mitić-Ćulafić, Dragana, "Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study" in International Endodontic Journal, 48, no. 10 (2015):966-975,
https://doi.org/10.1111/iej.12391 . .
21
12
14

Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study

Petrović, V.; Opačić-Galić, Vanja; Živković, Slavoljub; Nikolić, B.; Danilović, Vesna; Miletić, Vesna; Jokanović, Vukoman; Mitić-Ćulafić, Dragana

(Wiley, Hoboken, 2015)

TY  - JOUR
AU  - Petrović, V.
AU  - Opačić-Galić, Vanja
AU  - Živković, Slavoljub
AU  - Nikolić, B.
AU  - Danilović, Vesna
AU  - Miletić, Vesna
AU  - Jokanović, Vukoman
AU  - Mitić-Ćulafić, Dragana
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2012
AB  - AimTo evaluate in vitro cytotoxicity and in vivo inflammatory response to new nanostructural materials based on active calcium silicate systems (CS) and hydroxyapatite (HA-CS). MethodologyCytotoxicity of eluates of new nanostructural noncommercial materials CS and HA-CS, and MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil) as a control, were tested using the MTT assay on MRC-5 cells. Eluates of set materials were tested in 100% and 50% concentrations, 24h, 7days and 21days post-elution. The pH values were determined for undiluted eluates of set materials. Polyethylene tubes containing the test materials (CS, HA-CS, MTA) were implanted in subcutaneous tissue of Wistar rats. Histopathological examinations were conducted at 7, 15, 30 and 60days after the implantation. Data were statistically analyzed using three-way and one-way anova Tukey's post hoc test as well as Kruskall-Wallis test with Dunn's post hoc test at =0.05. ResultsAll materials significantly reduced cell viability; especially when undiluted eluates were used (P lt 0.001). After 24h elution, cell viability was 101.8%, 49.5 +/- 4.2% and 61 +/- 7.4%, for MTA, and HA-CS, respectively. However, CS and HA-CS were significantly less toxic than the control material MTA (P lt 0.05). Cytotoxicity could be at least partially attributed to pH kinetics over time. Dilution of eluates of all tested materials resulted in better cell survival. Histopathological examination indicated similar inflammatory reaction, vascular congestion and connective tissue integrity associated with CS, HA-CS and MTA at each observation period (P>0.05). The only significant difference was found for capsule thickness, that is thicker capsule was associated with HA-CS compared to MTA at 60days (P=0.0039). HA-CS induced moderately thick capsules (median score 3, score range 2-3), whereas MTA resulted in thin capsule formation (median score 2, score range 1-3). ConclusionsEvaluation of cytotoxicity and inflammatory response indicated better biocompatibility of CS and HA-CS, in comparison with MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil).
PB  - Wiley, Hoboken
T2  - International Endodontic Journal
T1  - Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study
VL  - 48
IS  - 10
SP  - 966
EP  - 975
DO  - 10.1111/iej.12391
ER  - 
@article{
author = "Petrović, V. and Opačić-Galić, Vanja and Živković, Slavoljub and Nikolić, B. and Danilović, Vesna and Miletić, Vesna and Jokanović, Vukoman and Mitić-Ćulafić, Dragana",
year = "2015",
abstract = "AimTo evaluate in vitro cytotoxicity and in vivo inflammatory response to new nanostructural materials based on active calcium silicate systems (CS) and hydroxyapatite (HA-CS). MethodologyCytotoxicity of eluates of new nanostructural noncommercial materials CS and HA-CS, and MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil) as a control, were tested using the MTT assay on MRC-5 cells. Eluates of set materials were tested in 100% and 50% concentrations, 24h, 7days and 21days post-elution. The pH values were determined for undiluted eluates of set materials. Polyethylene tubes containing the test materials (CS, HA-CS, MTA) were implanted in subcutaneous tissue of Wistar rats. Histopathological examinations were conducted at 7, 15, 30 and 60days after the implantation. Data were statistically analyzed using three-way and one-way anova Tukey's post hoc test as well as Kruskall-Wallis test with Dunn's post hoc test at =0.05. ResultsAll materials significantly reduced cell viability; especially when undiluted eluates were used (P lt 0.001). After 24h elution, cell viability was 101.8%, 49.5 +/- 4.2% and 61 +/- 7.4%, for MTA, and HA-CS, respectively. However, CS and HA-CS were significantly less toxic than the control material MTA (P lt 0.05). Cytotoxicity could be at least partially attributed to pH kinetics over time. Dilution of eluates of all tested materials resulted in better cell survival. Histopathological examination indicated similar inflammatory reaction, vascular congestion and connective tissue integrity associated with CS, HA-CS and MTA at each observation period (P>0.05). The only significant difference was found for capsule thickness, that is thicker capsule was associated with HA-CS compared to MTA at 60days (P=0.0039). HA-CS induced moderately thick capsules (median score 3, score range 2-3), whereas MTA resulted in thin capsule formation (median score 2, score range 1-3). ConclusionsEvaluation of cytotoxicity and inflammatory response indicated better biocompatibility of CS and HA-CS, in comparison with MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil).",
publisher = "Wiley, Hoboken",
journal = "International Endodontic Journal",
title = "Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study",
volume = "48",
number = "10",
pages = "966-975",
doi = "10.1111/iej.12391"
}
Petrović, V., Opačić-Galić, V., Živković, S., Nikolić, B., Danilović, V., Miletić, V., Jokanović, V.,& Mitić-Ćulafić, D.. (2015). Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study. in International Endodontic Journal
Wiley, Hoboken., 48(10), 966-975.
https://doi.org/10.1111/iej.12391
Petrović V, Opačić-Galić V, Živković S, Nikolić B, Danilović V, Miletić V, Jokanović V, Mitić-Ćulafić D. Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study. in International Endodontic Journal. 2015;48(10):966-975.
doi:10.1111/iej.12391 .
Petrović, V., Opačić-Galić, Vanja, Živković, Slavoljub, Nikolić, B., Danilović, Vesna, Miletić, Vesna, Jokanović, Vukoman, Mitić-Ćulafić, Dragana, "Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study" in International Endodontic Journal, 48, no. 10 (2015):966-975,
https://doi.org/10.1111/iej.12391 . .
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Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis

Manojlović, Dragica; Lenhardt, Lea; Milićević, Bojana; Antonov, Milica; Miletić, Vesna; Dramićanin, Miroslav D.

(Nature Publishing Group, London, 2015)

TY  - JOUR
AU  - Manojlović, Dragica
AU  - Lenhardt, Lea
AU  - Milićević, Bojana
AU  - Antonov, Milica
AU  - Miletić, Vesna
AU  - Dramićanin, Miroslav D.
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1984
AB  - Colour changes in Gradia Direct (TM) composite after immersion in tea, coffee, red wine, Coca-Cola, Colgate mouthwash, and distilled water were evaluated using principal component analysis (PCA) and the CIELAB colour coordinates. The reflection spectra of the composites were used as input data for the PCA. The output data (scores and loadings) provided information about the magnitude and origin of the surface reflection changes after exposure to the staining solutions. The reflection spectra of the stained samples generally exhibited lower reflection in the blue spectral range, which was manifested in the lower content of the blue shade for the samples. Both analyses demonstrated the high staining abilities of tea, coffee, and red wine, which produced total colour changes of 4.31, 6.61, and 6.22, respectively, according to the CIELAB analysis. PCA revealed subtle changes in the reflection spectra of composites immersed in Coca-Cola, demonstrating Coca-Cola's ability to stain the composite to a small degree.
PB  - Nature Publishing Group, London
T2  - Scientific Reports
T1  - Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis
VL  - 5
DO  - 10.1038/srep14638
ER  - 
@article{
author = "Manojlović, Dragica and Lenhardt, Lea and Milićević, Bojana and Antonov, Milica and Miletić, Vesna and Dramićanin, Miroslav D.",
year = "2015",
abstract = "Colour changes in Gradia Direct (TM) composite after immersion in tea, coffee, red wine, Coca-Cola, Colgate mouthwash, and distilled water were evaluated using principal component analysis (PCA) and the CIELAB colour coordinates. The reflection spectra of the composites were used as input data for the PCA. The output data (scores and loadings) provided information about the magnitude and origin of the surface reflection changes after exposure to the staining solutions. The reflection spectra of the stained samples generally exhibited lower reflection in the blue spectral range, which was manifested in the lower content of the blue shade for the samples. Both analyses demonstrated the high staining abilities of tea, coffee, and red wine, which produced total colour changes of 4.31, 6.61, and 6.22, respectively, according to the CIELAB analysis. PCA revealed subtle changes in the reflection spectra of composites immersed in Coca-Cola, demonstrating Coca-Cola's ability to stain the composite to a small degree.",
publisher = "Nature Publishing Group, London",
journal = "Scientific Reports",
title = "Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis",
volume = "5",
doi = "10.1038/srep14638"
}
Manojlović, D., Lenhardt, L., Milićević, B., Antonov, M., Miletić, V.,& Dramićanin, M. D.. (2015). Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis. in Scientific Reports
Nature Publishing Group, London., 5.
https://doi.org/10.1038/srep14638
Manojlović D, Lenhardt L, Milićević B, Antonov M, Miletić V, Dramićanin MD. Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis. in Scientific Reports. 2015;5.
doi:10.1038/srep14638 .
Manojlović, Dragica, Lenhardt, Lea, Milićević, Bojana, Antonov, Milica, Miletić, Vesna, Dramićanin, Miroslav D., "Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis" in Scientific Reports, 5 (2015),
https://doi.org/10.1038/srep14638 . .
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