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 . .

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 . .

TY  - JOUR
AU  - Savić-Stanković, Tatjana
AU  - Karadžić, Branislav
AU  - Latković, Marina
AU  - Miletić, Vesna
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2488
AB  - Introduction/Objective the aim was to evaluate initial efficiency of sodium perborate (tetrahydrate) and 30% hydrogen peroxide mixture for intracoronal non-vital teeth bleaching ("walking bleach" technique). Methods Forty patients with discolored teeth were included in the study. Based on their history and clinical examination, causes of discoloration were classified as necrotic pulp, "endo-sealer" or unknown. The "walking bleach" technique was performed by applying sodium perborate (tetrahydrate) and 30% hydrogen peroxide mixture intracoronally to cavity dentin walls. The mixture was renewed in seven-day intervals. Tooth color was assessed visually before, during, and after the procedure using the Vita Classical shade guide (Vita Zahnfabrik, Bad Säckingen, Germany). Numerical values or shade guide units (SGU) were assigned to Vita shade tabs on a bright-dark scale. Analysis of variance, t-test, correlation and regression analysis were used to analyze the data (p  lt  0.05). Results on average, 26 ± 9 days or 3-4 appointments were required for intracoronal bleaching to achieve the desired or best possible shade. Better clinical efficiency was found in the necrotic pulp group (17 ± 6 days; 8 ± 3 SGU) than in the "endo-sealer" group (42 ± 13 days; 4 ± 2 SGU) (p  lt  0.05). Age significantly influenced bleaching efficiency (p  lt  0.05). There was no significant correlation between bleaching efficiency and initial shade (p > 0.05). Conclusion Intracoronal, non-vital teeth bleaching ("walking bleach" technique) using sodium perborate (tetrahydrate) and 30% hydrogen peroxide mixture showed satisfactory clinical efficiency. Discoloration caused by pulp necrosis was treated more efficiently than that caused by endodontic sealers. Younger age had a positive effect and discoloration intensity had no effect on bleaching efficiency.
AB  - Cilj Cilj ovog rada je da ispita inicijalnu kliničku efikasnost miksture natrijum-perborata (tetrahidrata) i 30% vodonik-peroksida za intrakoronarno izbeljivanje depulpisanih zuba (,,šetajuća" tehnika). Metode U studiju je bilo uključeno 40 pacijenata sa prebojenim zubima. Na bazi anamneze i kliničkog pregleda, uzroci diskoloracije su klasifikovani kao "nekrotična pulpa", ,,endo-siler" ili ,,nepoznat". U intervalima od sedam dana mikstura natrijum-perborata i 30% vodonik-peroksida aplikovana je intrakoronarno na dentinske zidove kaviteta. Boja zuba je procenjivana vizuelnom metodom pre, tokom i posle tretmana primenom ključa boja Vita Classic (Vita Zahnfabrik, Nemačka). Numerička vrednost (jedinica nijanse) dodeljena je svakoj nijansi ključa Vita pomoću svetlo-tamne skale. Analiza varijanse, t-test, korelaciona i regresiona analiza su korišćene za statističku obradu podataka (p  lt  0,05). Rezultati Prosečno 26 ± 9 dana ili 3-4 posete su bile neophodne da se intrakoronarnim izbeljivanjem postignu željena ili najsvetlija moguća nijansa. Bolja klinička efikasnost izbeljivanja zabeležena je u grupi ,,nekrotična pulpa" (17 ± 6 dana; 8 ± 3 nijansi) nego u grupi ,,endo-siler" (42 ± 13 dana; 4 ± 2 nijanse) (p  lt  0,05). Uzrast pacijenta je značajno uticao na efikasnost izbeljivanja (p  lt  0,05). Nije utvrđena značajna povezanost između efikasnosti izbeljivanja i početne nijanse (p > 0,05). Zaključak Intrakoronarno izbeljivanje depulpisanih zuba odnosno "šetajuća" tehnika izbeljivanja primenom miksture natrijum-perborata (tetrahidrata) i 30% vodonik-peroksida pokazala je zadovoljavajuću kliničku efikasnost. Diskoloracija usled nekroze pulpe je uspešnije izbeljena nego diskoloracija izazvana endodontskim pastama. Efikasnije izbeljivanje je zabeleženo kod mlađih pacijenata, dok intenzitet početne diskoloracije nije značajno uticao na efikasnost izbeljivanja.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Clinical efficiency of a sodium perborate-hydrogen peroxide mixture for intracoronal non-vital teeth bleaching
T1  - Klinička efikasnost miksture natrijum-perborata i vodonik-peroksida za intrakoronarno izbeljivanje depulpisanih zuba
VL  - 148
IS  - 1-2
SP  - 24
EP  - 30
DO  - 10.2298/SARH190504094S
ER  - 

@article{
author = "Savić-Stanković, Tatjana and Karadžić, Branislav and Latković, Marina and Miletić, Vesna",
year = "2020",
abstract = "Introduction/Objective the aim was to evaluate initial efficiency of sodium perborate (tetrahydrate) and 30% hydrogen peroxide mixture for intracoronal non-vital teeth bleaching ("walking bleach" technique). Methods Forty patients with discolored teeth were included in the study. Based on their history and clinical examination, causes of discoloration were classified as necrotic pulp, "endo-sealer" or unknown. The "walking bleach" technique was performed by applying sodium perborate (tetrahydrate) and 30% hydrogen peroxide mixture intracoronally to cavity dentin walls. The mixture was renewed in seven-day intervals. Tooth color was assessed visually before, during, and after the procedure using the Vita Classical shade guide (Vita Zahnfabrik, Bad Säckingen, Germany). Numerical values or shade guide units (SGU) were assigned to Vita shade tabs on a bright-dark scale. Analysis of variance, t-test, correlation and regression analysis were used to analyze the data (p  lt  0.05). Results on average, 26 ± 9 days or 3-4 appointments were required for intracoronal bleaching to achieve the desired or best possible shade. Better clinical efficiency was found in the necrotic pulp group (17 ± 6 days; 8 ± 3 SGU) than in the "endo-sealer" group (42 ± 13 days; 4 ± 2 SGU) (p  lt  0.05). Age significantly influenced bleaching efficiency (p  lt  0.05). There was no significant correlation between bleaching efficiency and initial shade (p > 0.05). Conclusion Intracoronal, non-vital teeth bleaching ("walking bleach" technique) using sodium perborate (tetrahydrate) and 30% hydrogen peroxide mixture showed satisfactory clinical efficiency. Discoloration caused by pulp necrosis was treated more efficiently than that caused by endodontic sealers. Younger age had a positive effect and discoloration intensity had no effect on bleaching efficiency., Cilj Cilj ovog rada je da ispita inicijalnu kliničku efikasnost miksture natrijum-perborata (tetrahidrata) i 30% vodonik-peroksida za intrakoronarno izbeljivanje depulpisanih zuba (,,šetajuća" tehnika). Metode U studiju je bilo uključeno 40 pacijenata sa prebojenim zubima. Na bazi anamneze i kliničkog pregleda, uzroci diskoloracije su klasifikovani kao "nekrotična pulpa", ,,endo-siler" ili ,,nepoznat". U intervalima od sedam dana mikstura natrijum-perborata i 30% vodonik-peroksida aplikovana je intrakoronarno na dentinske zidove kaviteta. Boja zuba je procenjivana vizuelnom metodom pre, tokom i posle tretmana primenom ključa boja Vita Classic (Vita Zahnfabrik, Nemačka). Numerička vrednost (jedinica nijanse) dodeljena je svakoj nijansi ključa Vita pomoću svetlo-tamne skale. Analiza varijanse, t-test, korelaciona i regresiona analiza su korišćene za statističku obradu podataka (p  lt  0,05). Rezultati Prosečno 26 ± 9 dana ili 3-4 posete su bile neophodne da se intrakoronarnim izbeljivanjem postignu željena ili najsvetlija moguća nijansa. Bolja klinička efikasnost izbeljivanja zabeležena je u grupi ,,nekrotična pulpa" (17 ± 6 dana; 8 ± 3 nijansi) nego u grupi ,,endo-siler" (42 ± 13 dana; 4 ± 2 nijanse) (p  lt  0,05). Uzrast pacijenta je značajno uticao na efikasnost izbeljivanja (p  lt  0,05). Nije utvrđena značajna povezanost između efikasnosti izbeljivanja i početne nijanse (p > 0,05). Zaključak Intrakoronarno izbeljivanje depulpisanih zuba odnosno "šetajuća" tehnika izbeljivanja primenom miksture natrijum-perborata (tetrahidrata) i 30% vodonik-peroksida pokazala je zadovoljavajuću kliničku efikasnost. Diskoloracija usled nekroze pulpe je uspešnije izbeljena nego diskoloracija izazvana endodontskim pastama. Efikasnije izbeljivanje je zabeleženo kod mlađih pacijenata, dok intenzitet početne diskoloracije nije značajno uticao na efikasnost izbeljivanja.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Clinical efficiency of a sodium perborate-hydrogen peroxide mixture for intracoronal non-vital teeth bleaching, Klinička efikasnost miksture natrijum-perborata i vodonik-peroksida za intrakoronarno izbeljivanje depulpisanih zuba",
volume = "148",
number = "1-2",
pages = "24-30",
doi = "10.2298/SARH190504094S"
}

Savić-Stanković, T., Karadžić, B., Latković, M.,& Miletić, V.. (2020). Clinical efficiency of a sodium perborate-hydrogen peroxide mixture for intracoronal non-vital teeth bleaching. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 148(1-2), 24-30.
https://doi.org/10.2298/SARH190504094S

Savić-Stanković T, Karadžić B, Latković M, Miletić V. Clinical efficiency of a sodium perborate-hydrogen peroxide mixture for intracoronal non-vital teeth bleaching. in Srpski arhiv za celokupno lekarstvo. 2020;148(1-2):24-30.
doi:10.2298/SARH190504094S .

Savić-Stanković, Tatjana, Karadžić, Branislav, Latković, Marina, Miletić, Vesna, "Clinical efficiency of a sodium perborate-hydrogen peroxide mixture for intracoronal non-vital teeth bleaching" in Srpski arhiv za celokupno lekarstvo, 148, no. 1-2 (2020):24-30,
https://doi.org/10.2298/SARH190504094S . .

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 . .

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 . .

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 . .

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 . .

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 . .

TY  - JOUR
AU  - Mitrović, Aleksandra
AU  - Tanasić, Ivan
AU  - Mitrović, Nenad
AU  - Miletić, Vesna
AU  - Bakić, Gordana
AU  - Milošević, Miloš
AU  - Antonović, Dušan
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2396
AB  - The study showed an application of the 3 D Digital Image Correlation Method (3 D-DIC) for detection of von Mises strain in samples of the self-etch, self-adhesive resin based cement (RBC). The aim was to determine and compare strain in the self-cured and light-cured Maxcem Elite, furthermore to investigate the hardness of these two cement-types. The experiment was carried out using two groups of Maxcem Elite (Kerr, Orange, CA, USA) samples; each tested group includes five (o5 x 2 mm sized) samples, for both self-curing and light-curing mode. All samples were prepared by filling teflon ring-type molds. In addition, Vickers micro-hardness was measured for all samples. Maxcem Elite showed similar maximum strain values from 10% to 12% for both groups. Besides the maximum strain value, the 3 D-DIC method also enabled monitoring the change of strain field even after the recommended polymerization time. This method has shown that the polymerization shrinkage continues even after 10 min which disagreed with manufacturer's suggestion. Group II showed maximum strain values of 12% in the peripheral zone after 10 min, in the last Stage (Stage 60). Statistically significant difference was not found in the overall strain between self- and light-cured Maxcem Elite neither peripherally (p = 0.118) nor centrally (p = 0.879). However, statistical significance was found in strain regarding central and peripheral zone in both, self-cured (p = 0.020) and light-cured (p = 0.002) Maxcem Elite. The mean von Mises strain values in the periphery of the samples (Section 0) were significantly higher compared to strain values in the center of the samples (for Section 1 and 2). The last stage (Stage 60) of the light-cured Maxcem Elite polymerization showed significantly higher values of von Mises strain compared to initial stage (Stage 0). Higher values of micro-hardness were noticed on the surfaces directly exposed to LED lamp after performing measurements of micro-hardness on light-cured samples.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of Adhesion Science & Technology
T1  - Analysis of the strain and hardness in self-cured and light-cured self-adhesive resin based cement
VL  - 33
IS  - 24
SP  - 2684
EP  - 2695
DO  - 10.1080/01694243.2019.1654221
ER  - 

@article{
author = "Mitrović, Aleksandra and Tanasić, Ivan and Mitrović, Nenad and Miletić, Vesna and Bakić, Gordana and Milošević, Miloš and Antonović, Dušan",
year = "2019",
abstract = "The study showed an application of the 3 D Digital Image Correlation Method (3 D-DIC) for detection of von Mises strain in samples of the self-etch, self-adhesive resin based cement (RBC). The aim was to determine and compare strain in the self-cured and light-cured Maxcem Elite, furthermore to investigate the hardness of these two cement-types. The experiment was carried out using two groups of Maxcem Elite (Kerr, Orange, CA, USA) samples; each tested group includes five (o5 x 2 mm sized) samples, for both self-curing and light-curing mode. All samples were prepared by filling teflon ring-type molds. In addition, Vickers micro-hardness was measured for all samples. Maxcem Elite showed similar maximum strain values from 10% to 12% for both groups. Besides the maximum strain value, the 3 D-DIC method also enabled monitoring the change of strain field even after the recommended polymerization time. This method has shown that the polymerization shrinkage continues even after 10 min which disagreed with manufacturer's suggestion. Group II showed maximum strain values of 12% in the peripheral zone after 10 min, in the last Stage (Stage 60). Statistically significant difference was not found in the overall strain between self- and light-cured Maxcem Elite neither peripherally (p = 0.118) nor centrally (p = 0.879). However, statistical significance was found in strain regarding central and peripheral zone in both, self-cured (p = 0.020) and light-cured (p = 0.002) Maxcem Elite. The mean von Mises strain values in the periphery of the samples (Section 0) were significantly higher compared to strain values in the center of the samples (for Section 1 and 2). The last stage (Stage 60) of the light-cured Maxcem Elite polymerization showed significantly higher values of von Mises strain compared to initial stage (Stage 0). Higher values of micro-hardness were noticed on the surfaces directly exposed to LED lamp after performing measurements of micro-hardness on light-cured samples.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of Adhesion Science & Technology",
title = "Analysis of the strain and hardness in self-cured and light-cured self-adhesive resin based cement",
volume = "33",
number = "24",
pages = "2684-2695",
doi = "10.1080/01694243.2019.1654221"
}

Mitrović, A., Tanasić, I., Mitrović, N., Miletić, V., Bakić, G., Milošević, M.,& Antonović, D.. (2019). Analysis of the strain and hardness in self-cured and light-cured self-adhesive resin based cement. in Journal of Adhesion Science & Technology
Taylor & Francis Ltd, Abingdon., 33(24), 2684-2695.
https://doi.org/10.1080/01694243.2019.1654221

Mitrović A, Tanasić I, Mitrović N, Miletić V, Bakić G, Milošević M, Antonović D. Analysis of the strain and hardness in self-cured and light-cured self-adhesive resin based cement. in Journal of Adhesion Science & Technology. 2019;33(24):2684-2695.
doi:10.1080/01694243.2019.1654221 .

Mitrović, Aleksandra, Tanasić, Ivan, Mitrović, Nenad, Miletić, Vesna, Bakić, Gordana, Milošević, Miloš, Antonović, Dušan, "Analysis of the strain and hardness in self-cured and light-cured self-adhesive resin based cement" in Journal of Adhesion Science & Technology, 33, no. 24 (2019):2684-2695,
https://doi.org/10.1080/01694243.2019.1654221 . .

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 . .

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 . .

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 .

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 . .

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 . .

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 . .

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 . .

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 . .

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 . .

TY  - JOUR
AU  - Miletić, Vesna
AU  - Divnic-Resnik, Tihana
AU  - Nikolić-Jakoba, Nataša
AU  - Bosnjak, Andrija Petar
AU  - D'Alpino, Paulo Henrique Perlatti
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2127
PB  - Hindawi Ltd, London
T2  - International Journal of Dentistry
T1  - Materials and Bioactive Factors in Dental Restoration and Periodontal Therapy
DO  - 10.1155/2016/4809051
ER  - 

@article{
author = "Miletić, Vesna and Divnic-Resnik, Tihana and Nikolić-Jakoba, Nataša and Bosnjak, Andrija Petar and D'Alpino, Paulo Henrique Perlatti",
year = "2016",
publisher = "Hindawi Ltd, London",
journal = "International Journal of Dentistry",
title = "Materials and Bioactive Factors in Dental Restoration and Periodontal Therapy",
doi = "10.1155/2016/4809051"
}

Miletić, V., Divnic-Resnik, T., Nikolić-Jakoba, N., Bosnjak, A. P.,& D'Alpino, P. H. P.. (2016). Materials and Bioactive Factors in Dental Restoration and Periodontal Therapy. in International Journal of Dentistry
Hindawi Ltd, London..
https://doi.org/10.1155/2016/4809051

Miletić V, Divnic-Resnik T, Nikolić-Jakoba N, Bosnjak AP, D'Alpino PHP. Materials and Bioactive Factors in Dental Restoration and Periodontal Therapy. in International Journal of Dentistry. 2016;.
doi:10.1155/2016/4809051 .

Miletić, Vesna, Divnic-Resnik, Tihana, Nikolić-Jakoba, Nataša, Bosnjak, Andrija Petar, D'Alpino, Paulo Henrique Perlatti, "Materials and Bioactive Factors in Dental Restoration and Periodontal Therapy" in International Journal of Dentistry (2016),
https://doi.org/10.1155/2016/4809051 . .

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 . .

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 . .

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 . .

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 . .

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 . .

TY  - JOUR
AU  - Milanović, Ivana
AU  - Ivanović, Vladimir
AU  - Vujašković, Mirjana
AU  - Ignjatović, Snežana
AU  - Miletić, Vesna
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1974
AB  - This study aimed to compare the accuracy of three electronic apex locators (EALs), Raypex 5, Apex NRG and ProPex II, in locating the apical foramen (AF) in vivo. Thirty multi-rooted teeth were included in the study. Distances from the file tip to the radiographic apex from the buccal (R1) and mesial (R2) aspect were measured after extraction. The distance from the file tip to the AF (L) was measured microscopically. Raypex 5, Apex NRG and ProPex II were accurate to within +/- 0.5mm in 84.6%, 78.6% and 66.7% of cases, respectively. R1, R2 and L measurements between the EALs were not statistically different (P>0.05). R1 and L correlated positively (r(2)=0.817; P lt 0.001). There were no significant differences in all measurements between vital and non-vital root canals (P>0.05). There was no statistically significant difference between the EALs. There was a positive correlation between electronic and radiographic measurements when locating the AF.
PB  - Wiley-Blackwell, Hoboken
T2  - Australian Endodontic Journal
T1  - Accuracy of three electronic apex locators in determining the apical foramen in multi-rooted teeth: Randomised clinical and laboratory study
VL  - 41
IS  - 1
SP  - 35
EP  - 43
DO  - 10.1111/aej.12074
ER  - 

@article{
author = "Milanović, Ivana and Ivanović, Vladimir and Vujašković, Mirjana and Ignjatović, Snežana and Miletić, Vesna",
year = "2015",
abstract = "This study aimed to compare the accuracy of three electronic apex locators (EALs), Raypex 5, Apex NRG and ProPex II, in locating the apical foramen (AF) in vivo. Thirty multi-rooted teeth were included in the study. Distances from the file tip to the radiographic apex from the buccal (R1) and mesial (R2) aspect were measured after extraction. The distance from the file tip to the AF (L) was measured microscopically. Raypex 5, Apex NRG and ProPex II were accurate to within +/- 0.5mm in 84.6%, 78.6% and 66.7% of cases, respectively. R1, R2 and L measurements between the EALs were not statistically different (P>0.05). R1 and L correlated positively (r(2)=0.817; P lt 0.001). There were no significant differences in all measurements between vital and non-vital root canals (P>0.05). There was no statistically significant difference between the EALs. There was a positive correlation between electronic and radiographic measurements when locating the AF.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Australian Endodontic Journal",
title = "Accuracy of three electronic apex locators in determining the apical foramen in multi-rooted teeth: Randomised clinical and laboratory study",
volume = "41",
number = "1",
pages = "35-43",
doi = "10.1111/aej.12074"
}

Milanović, I., Ivanović, V., Vujašković, M., Ignjatović, S.,& Miletić, V.. (2015). Accuracy of three electronic apex locators in determining the apical foramen in multi-rooted teeth: Randomised clinical and laboratory study. in Australian Endodontic Journal
Wiley-Blackwell, Hoboken., 41(1), 35-43.
https://doi.org/10.1111/aej.12074

Milanović I, Ivanović V, Vujašković M, Ignjatović S, Miletić V. Accuracy of three electronic apex locators in determining the apical foramen in multi-rooted teeth: Randomised clinical and laboratory study. in Australian Endodontic Journal. 2015;41(1):35-43.
doi:10.1111/aej.12074 .

Milanović, Ivana, Ivanović, Vladimir, Vujašković, Mirjana, Ignjatović, Snežana, Miletić, Vesna, "Accuracy of three electronic apex locators in determining the apical foramen in multi-rooted teeth: Randomised clinical and laboratory study" in Australian Endodontic Journal, 41, no. 1 (2015):35-43,
https://doi.org/10.1111/aej.12074 . .