TY  - JOUR
AU  - Tanasić, Ivan
AU  - Mitrović, Aleksandra
AU  - Mitrović, Nenad
AU  - Šarac, Dušan
AU  - Tihaček-Šojić, Ljiljana
AU  - Milić-Lemić, Aleksandra
AU  - Milošević, Miloš
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2466
AB  - Introduction/Objective The study was conducted to identify the maximum strain generated in the samples composed of poly-methyl-methacrylate, Straumann® implants, and three types of ceramic systems. Methods Three types of experimental models were used, loaded by external load of 100 N, 300 N, and 500 N and analyzed using the digital image correlation method. The models were composed of yttriastabilized zirconia, e.max lithium disilicate, and Vita Enamic® hybrid ceramics, placed on the Straumann® cylindrical dental implant systems (4 × 10 mm) with straight abutments. Results Significant differences in strain values between samples with different crown material groups were detected (p = 0.000). This suggests that strain values were dependent on the type of crown material. Strain values were also affected by the region of interest (p = 0.000). Application of two-way ANOVA enabled testing of the interaction effect between two independent variables, crown material and region of interest, where a significant difference was also found (p = 0.046). This indicates that strain values were also influenced by different combinations of material type and region of interest. The highest strain values were found for Z (0.383 ± 0.015) in the apical region, and the lowest for E (0.303 ± 0.015) in the middle region. Conclusion The study shows maximum strain in the apical and marginal directions. When considered various all-ceramics, we noticed the minimum strain below Vita Enamics®, while the maximum strain was found in samples with yttria-stabilized zirconia crown.
AB  - Uvod/Cilj Studija je sprovedena da identifikuje maksimalnu deformaciju proizvedenu u uzorcima sastavljenim od polimetilmetakrilata, Štrauman® implantata i tri vrste keramičkih sistema. Metode Korišćene su tri vrste eksperimentalnih modela izloženih spoljašnjem opterećenju od 100 N, 300 N i 500 N i analiziranih uz pomoć metoda korelacije digitalnih slika. Modeli su bili sastavljeni od itrijum-cirkonije, e. maks. litijum disilikatne i hibridnih keramika Vita enamik®, postavljenih na cilindrične dentalne implantantne sisteme Štrauman® (4 × 10 mm) sa abatmentima pod pravim uglom. Rezultati Značajne razlike su otkrivene u vrednostima deformacija između uzoraka sa različitim keramičkim krunicama (p = 0,000). Ovo podrazumeva da su vrednosti deformacija zavisne od tipa keramičkog materijala. Vrednosti deformacija su zavisne i od regiona interesa (p = 0,000). Primena ANOVA testa je omogućila da se uoči interakcija između nezavisnih varijabli, meterijala keramičkih kruna i regiona od interesa, gde je takođe nađena statistički značajna razlika (p = 0,046). Ova činjenica ukazuje na to da vrednosti deformacija zavise od različite kombinacije tipa keramičkog materijala i regiona interesa. Najveće vrednosti deformacija su nađene na modelu Z (0,383 ± 0,015) u apikalnom regionu, dok su najmanje vrednosti deformacija nađene na modelu E (0,303 ± 0,015) u regionu srednje trećine. Zaključak Izveštaj je pokazao maksimalne deformacije u apikalnim i marginalnim pravcima. Kada se razmatraju različite vrste keramika, najmanje deformacije su primećene ispod kruna Vita enamik®, dok je najveća deformacija pronađena u uzorcima sa krunama itrijum-cirkonija.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Analyzing strain in samples with all-ceramic systems using the digital image correlation technique
T1  - Analiza deformacija u uzorcima sastavljenim od keramičkih sistema primenom metode digitalne korelacije slika
VL  - 147
IS  - 9-10
SP  - 528
EP  - 533
DO  - 10.2298/SARH171030085T
ER  - 

@article{
author = "Tanasić, Ivan and Mitrović, Aleksandra and Mitrović, Nenad and Šarac, Dušan and Tihaček-Šojić, Ljiljana and Milić-Lemić, Aleksandra and Milošević, Miloš",
year = "2019",
abstract = "Introduction/Objective The study was conducted to identify the maximum strain generated in the samples composed of poly-methyl-methacrylate, Straumann® implants, and three types of ceramic systems. Methods Three types of experimental models were used, loaded by external load of 100 N, 300 N, and 500 N and analyzed using the digital image correlation method. The models were composed of yttriastabilized zirconia, e.max lithium disilicate, and Vita Enamic® hybrid ceramics, placed on the Straumann® cylindrical dental implant systems (4 × 10 mm) with straight abutments. Results Significant differences in strain values between samples with different crown material groups were detected (p = 0.000). This suggests that strain values were dependent on the type of crown material. Strain values were also affected by the region of interest (p = 0.000). Application of two-way ANOVA enabled testing of the interaction effect between two independent variables, crown material and region of interest, where a significant difference was also found (p = 0.046). This indicates that strain values were also influenced by different combinations of material type and region of interest. The highest strain values were found for Z (0.383 ± 0.015) in the apical region, and the lowest for E (0.303 ± 0.015) in the middle region. Conclusion The study shows maximum strain in the apical and marginal directions. When considered various all-ceramics, we noticed the minimum strain below Vita Enamics®, while the maximum strain was found in samples with yttria-stabilized zirconia crown., Uvod/Cilj Studija je sprovedena da identifikuje maksimalnu deformaciju proizvedenu u uzorcima sastavljenim od polimetilmetakrilata, Štrauman® implantata i tri vrste keramičkih sistema. Metode Korišćene su tri vrste eksperimentalnih modela izloženih spoljašnjem opterećenju od 100 N, 300 N i 500 N i analiziranih uz pomoć metoda korelacije digitalnih slika. Modeli su bili sastavljeni od itrijum-cirkonije, e. maks. litijum disilikatne i hibridnih keramika Vita enamik®, postavljenih na cilindrične dentalne implantantne sisteme Štrauman® (4 × 10 mm) sa abatmentima pod pravim uglom. Rezultati Značajne razlike su otkrivene u vrednostima deformacija između uzoraka sa različitim keramičkim krunicama (p = 0,000). Ovo podrazumeva da su vrednosti deformacija zavisne od tipa keramičkog materijala. Vrednosti deformacija su zavisne i od regiona interesa (p = 0,000). Primena ANOVA testa je omogućila da se uoči interakcija između nezavisnih varijabli, meterijala keramičkih kruna i regiona od interesa, gde je takođe nađena statistički značajna razlika (p = 0,046). Ova činjenica ukazuje na to da vrednosti deformacija zavise od različite kombinacije tipa keramičkog materijala i regiona interesa. Najveće vrednosti deformacija su nađene na modelu Z (0,383 ± 0,015) u apikalnom regionu, dok su najmanje vrednosti deformacija nađene na modelu E (0,303 ± 0,015) u regionu srednje trećine. Zaključak Izveštaj je pokazao maksimalne deformacije u apikalnim i marginalnim pravcima. Kada se razmatraju različite vrste keramika, najmanje deformacije su primećene ispod kruna Vita enamik®, dok je najveća deformacija pronađena u uzorcima sa krunama itrijum-cirkonija.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Analyzing strain in samples with all-ceramic systems using the digital image correlation technique, Analiza deformacija u uzorcima sastavljenim od keramičkih sistema primenom metode digitalne korelacije slika",
volume = "147",
number = "9-10",
pages = "528-533",
doi = "10.2298/SARH171030085T"
}

Tanasić, I., Mitrović, A., Mitrović, N., Šarac, D., Tihaček-Šojić, L., Milić-Lemić, A.,& Milošević, M.. (2019). Analyzing strain in samples with all-ceramic systems using the digital image correlation technique. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 147(9-10), 528-533.
https://doi.org/10.2298/SARH171030085T

Tanasić I, Mitrović A, Mitrović N, Šarac D, Tihaček-Šojić L, Milić-Lemić A, Milošević M. Analyzing strain in samples with all-ceramic systems using the digital image correlation technique. in Srpski arhiv za celokupno lekarstvo. 2019;147(9-10):528-533.
doi:10.2298/SARH171030085T .

Tanasić, Ivan, Mitrović, Aleksandra, Mitrović, Nenad, Šarac, Dušan, Tihaček-Šojić, Ljiljana, Milić-Lemić, Aleksandra, Milošević, Miloš, "Analyzing strain in samples with all-ceramic systems using the digital image correlation technique" in Srpski arhiv za celokupno lekarstvo, 147, no. 9-10 (2019):528-533,
https://doi.org/10.2298/SARH171030085T . .

TY  - JOUR
AU  - Mitrović, Aleksandra
AU  - Antonović, Dušan
AU  - Tanasić, Ivan
AU  - Mitrović, Nenad
AU  - Bakić, Gordana
AU  - Popović, Dejana
AU  - Milošević, Miloš
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2420
AB  - The introduction of resin-based cements and an adhesive-bonding system in daily dental practice has given the opportunity to increase the retention of previously conventional cemented restorations and the optimal results in esthetic. This experimental study employed the 3D Digital Image Correlation Method (3D-DIC) for detecting shrinkage strain in four dual cured composite cements. The aim was to visualize measure, analyze, and compare strain fields in four resin-based cements using the 3D-DIC method. A total of 72 samples were divided into 4 groups considering variations in sample types, diameter, and thickness. Four types of composite cements: RelyX U200 (3 M ESPE, St. Paul, MN, USA), MaxCem Elite (Kerr, Orange, CA, USA), Multilink Automix (Ivoclar Vivadent, Schaan, Liechtenstein), and SeT PP (SDI, Australia) were used. Each type had diameters of 3 mm, 4 mm, and 5 mm, respectively, combined with two different values of thickness: 1 mm and 2 mm. Thickness had an important role on strain detected in all tested materials showing higher strain in samples with 2 mm thickness compared to 1 mm samples. Shrinkage strain values were the highest in Set PP samples indicated the possibility of undesirable de-bonding.
PB  - Hindawi Ltd, London
T2  - Biomed Research International
T1  - 3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements
VL  - 2019
DO  - 10.1155/2019/2041348
ER  - 

@article{
author = "Mitrović, Aleksandra and Antonović, Dušan and Tanasić, Ivan and Mitrović, Nenad and Bakić, Gordana and Popović, Dejana and Milošević, Miloš",
year = "2019",
abstract = "The introduction of resin-based cements and an adhesive-bonding system in daily dental practice has given the opportunity to increase the retention of previously conventional cemented restorations and the optimal results in esthetic. This experimental study employed the 3D Digital Image Correlation Method (3D-DIC) for detecting shrinkage strain in four dual cured composite cements. The aim was to visualize measure, analyze, and compare strain fields in four resin-based cements using the 3D-DIC method. A total of 72 samples were divided into 4 groups considering variations in sample types, diameter, and thickness. Four types of composite cements: RelyX U200 (3 M ESPE, St. Paul, MN, USA), MaxCem Elite (Kerr, Orange, CA, USA), Multilink Automix (Ivoclar Vivadent, Schaan, Liechtenstein), and SeT PP (SDI, Australia) were used. Each type had diameters of 3 mm, 4 mm, and 5 mm, respectively, combined with two different values of thickness: 1 mm and 2 mm. Thickness had an important role on strain detected in all tested materials showing higher strain in samples with 2 mm thickness compared to 1 mm samples. Shrinkage strain values were the highest in Set PP samples indicated the possibility of undesirable de-bonding.",
publisher = "Hindawi Ltd, London",
journal = "Biomed Research International",
title = "3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements",
volume = "2019",
doi = "10.1155/2019/2041348"
}

Mitrović, A., Antonović, D., Tanasić, I., Mitrović, N., Bakić, G., Popović, D.,& Milošević, M.. (2019). 3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements. in Biomed Research International
Hindawi Ltd, London., 2019.
https://doi.org/10.1155/2019/2041348

Mitrović A, Antonović D, Tanasić I, Mitrović N, Bakić G, Popović D, Milošević M. 3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements. in Biomed Research International. 2019;2019.
doi:10.1155/2019/2041348 .

Mitrović, Aleksandra, Antonović, Dušan, Tanasić, Ivan, Mitrović, Nenad, Bakić, Gordana, Popović, Dejana, Milošević, Miloš, "3D Digital Image Correlation Analysis of the Shrinkage Strain in Four Dual Cure Composite Cements" in Biomed Research International, 2019 (2019),
https://doi.org/10.1155/2019/2041348 . .

TY  - JOUR
AU  - Mitrović, Aleksandra
AU  - Mitrović, Nenad
AU  - Tanasić, Ivan
AU  - Milošević, Miloš
AU  - Antonović, Dušan
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2399
AB  - Extensive evolution of glass ionomer cements (GIC) has marked a significant shift in the practice of luting indirect dental restorations limiting the use of zinc-phosphate and zinc-polycarboxylate cements to a few indications. GIC are now one of the materials of choice for cementation of all ceramics, fiber reinforced composite posts and veneers. GICs are determined by unique properties like chemical adhesion to tooth and base metals, low thermal expansion coefficients similar to dentin and minimal microleakage at the tooth-enamel interface due to low shrinkage. Shrinkage strain is identified as the cause, and the associated stress as the mechanism for the loss of marginal adaption and cohesive fracture within the material. The aim of this study is to measure the strain and displacement field in a conventional GIC (Riva Luting, SDI, Australia) related to different cement diameter, using 3D Digital Image Correlation (DIC) method. The experiment is done for samples with thickness of 1 mm combined with diameters of 4 mm (Group I) and 3 mm (Group II). The strain field is measured using 3D 11optical system Aramis 2M (GOM, Braunschweig, Germany). This study provides valuable data about strain behaviour and displacement as a possible failure factor in GIC, Riva Luting. Visible differences between Group I and Group II were observed.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity & Life
T1  - Strain field measurements of glass ionomer cement
VL  - 19
IS  - 2
SP  - 143
EP  - 147
UR  - https://hdl.handle.net/21.15107/rcub_smile_2399
ER  - 

@article{
author = "Mitrović, Aleksandra and Mitrović, Nenad and Tanasić, Ivan and Milošević, Miloš and Antonović, Dušan",
year = "2019",
abstract = "Extensive evolution of glass ionomer cements (GIC) has marked a significant shift in the practice of luting indirect dental restorations limiting the use of zinc-phosphate and zinc-polycarboxylate cements to a few indications. GIC are now one of the materials of choice for cementation of all ceramics, fiber reinforced composite posts and veneers. GICs are determined by unique properties like chemical adhesion to tooth and base metals, low thermal expansion coefficients similar to dentin and minimal microleakage at the tooth-enamel interface due to low shrinkage. Shrinkage strain is identified as the cause, and the associated stress as the mechanism for the loss of marginal adaption and cohesive fracture within the material. The aim of this study is to measure the strain and displacement field in a conventional GIC (Riva Luting, SDI, Australia) related to different cement diameter, using 3D Digital Image Correlation (DIC) method. The experiment is done for samples with thickness of 1 mm combined with diameters of 4 mm (Group I) and 3 mm (Group II). The strain field is measured using 3D 11optical system Aramis 2M (GOM, Braunschweig, Germany). This study provides valuable data about strain behaviour and displacement as a possible failure factor in GIC, Riva Luting. Visible differences between Group I and Group II were observed.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity & Life",
title = "Strain field measurements of glass ionomer cement",
volume = "19",
number = "2",
pages = "143-147",
url = "https://hdl.handle.net/21.15107/rcub_smile_2399"
}

Mitrović, A., Mitrović, N., Tanasić, I., Milošević, M.,& Antonović, D.. (2019). Strain field measurements of glass ionomer cement. in Structural Integrity & Life
Institut za ispitivanje materijala, Beograd., 19(2), 143-147.
https://hdl.handle.net/21.15107/rcub_smile_2399

Mitrović A, Mitrović N, Tanasić I, Milošević M, Antonović D. Strain field measurements of glass ionomer cement. in Structural Integrity & Life. 2019;19(2):143-147.
https://hdl.handle.net/21.15107/rcub_smile_2399 .

Mitrović, Aleksandra, Mitrović, Nenad, Tanasić, Ivan, Milošević, Miloš, Antonović, Dušan, "Strain field measurements of glass ionomer cement" in Structural Integrity & Life, 19, no. 2 (2019):143-147,
https://hdl.handle.net/21.15107/rcub_smile_2399 .

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  - 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  - CONF
AU  - Mitrović, Nenad
AU  - Tanasić, Ivan
AU  - Šarac, Dušan
AU  - Milošević, Miloš
AU  - Misković, Žarko
AU  - Tihaček-Šojić, Ljiljana
AU  - Sedmak, Aleksandar
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2113
AB  - Strain analysis in the vicinity of the dental implants were the subject of many research papers. In this study, new experimental method was employed for strain determination in the surrounding area of the axially loaded dental implant, which was embedded in the resin block. This studies can improve understanding of strain distribution, and its possible effects on the surrounding structure. Dental Implant Branemark with dimensions of 14 x 3.75 mm was immersed into rectangular block of polymethil methacrylate in vertical position. Implant was distanced 2 mm and 4 mm from the block sides, and they were named as the surface 1 and surface 2, respectively. Axial load, in the range of 0 - 500 N, was applied using Universal testing machine Tinius Olsen. Digital Image Correlation method was used for measuring deformation. Results were presented in the form of horizontal and vertical strains. Horizontal strains were mostly tensile, with maximum value of 0.3 % on the bottom of the surface 1. This values decreased in the upper area of the block side. Vertical compressive strain were 2-3 times higher on the surface 1, when compared to the surface 2, with maximum values of 0.7 % located on the bottom of the surface 1, and 0.3 % on the bottom of the surface 2. Resin block models could be used for determination of strain distribution under axially loaded implants. Greatest strain concentration were located under the implants apex, in the bottom area of the block. It was concluded that, in this region, strain values decreased linearly with increase of distance from the implants surface.
PB  - Elsevier Science Bv, Amsterdam
C3  - 21st European Conference on Fracture, (ECF21)
T1  - Analysis of the effect of implant distance from the surrounding structure, in the PMMA block model
VL  - 2
SP  - 1260
EP  - 1265
DO  - 10.1016/j.prostr.2016.06.161
ER  - 

@conference{
author = "Mitrović, Nenad and Tanasić, Ivan and Šarac, Dušan and Milošević, Miloš and Misković, Žarko and Tihaček-Šojić, Ljiljana and Sedmak, Aleksandar",
year = "2016",
abstract = "Strain analysis in the vicinity of the dental implants were the subject of many research papers. In this study, new experimental method was employed for strain determination in the surrounding area of the axially loaded dental implant, which was embedded in the resin block. This studies can improve understanding of strain distribution, and its possible effects on the surrounding structure. Dental Implant Branemark with dimensions of 14 x 3.75 mm was immersed into rectangular block of polymethil methacrylate in vertical position. Implant was distanced 2 mm and 4 mm from the block sides, and they were named as the surface 1 and surface 2, respectively. Axial load, in the range of 0 - 500 N, was applied using Universal testing machine Tinius Olsen. Digital Image Correlation method was used for measuring deformation. Results were presented in the form of horizontal and vertical strains. Horizontal strains were mostly tensile, with maximum value of 0.3 % on the bottom of the surface 1. This values decreased in the upper area of the block side. Vertical compressive strain were 2-3 times higher on the surface 1, when compared to the surface 2, with maximum values of 0.7 % located on the bottom of the surface 1, and 0.3 % on the bottom of the surface 2. Resin block models could be used for determination of strain distribution under axially loaded implants. Greatest strain concentration were located under the implants apex, in the bottom area of the block. It was concluded that, in this region, strain values decreased linearly with increase of distance from the implants surface.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "21st European Conference on Fracture, (ECF21)",
title = "Analysis of the effect of implant distance from the surrounding structure, in the PMMA block model",
volume = "2",
pages = "1260-1265",
doi = "10.1016/j.prostr.2016.06.161"
}

Mitrović, N., Tanasić, I., Šarac, D., Milošević, M., Misković, Ž., Tihaček-Šojić, L.,& Sedmak, A.. (2016). Analysis of the effect of implant distance from the surrounding structure, in the PMMA block model. in 21st European Conference on Fracture, (ECF21)
Elsevier Science Bv, Amsterdam., 2, 1260-1265.
https://doi.org/10.1016/j.prostr.2016.06.161

Mitrović N, Tanasić I, Šarac D, Milošević M, Misković Ž, Tihaček-Šojić L, Sedmak A. Analysis of the effect of implant distance from the surrounding structure, in the PMMA block model. in 21st European Conference on Fracture, (ECF21). 2016;2:1260-1265.
doi:10.1016/j.prostr.2016.06.161 .

Mitrović, Nenad, Tanasić, Ivan, Šarac, Dušan, Milošević, Miloš, Misković, Žarko, Tihaček-Šojić, Ljiljana, Sedmak, Aleksandar, "Analysis of the effect of implant distance from the surrounding structure, in the PMMA block model" in 21st European Conference on Fracture, (ECF21), 2 (2016):1260-1265,
https://doi.org/10.1016/j.prostr.2016.06.161 . .

TY  - JOUR
AU  - Tanasić, Ivan
AU  - Šarac, Dušan
AU  - Mitrović, Nenad
AU  - Tihaček-Šojić, Ljiljana
AU  - Misković, Žarko
AU  - Milić-Lemić, Aleksandra
AU  - Milošević, Miloš
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2071
AB  - The purpose of this study was to investigate the influence of the abutment angulation upon the strain distribution pattern for the vertical loading situation by means of the digital image correlation (DIC) method. In addition, to find the correlation between acrylic-layer thickness around implant body and surfaces strain induced by vertical loads. Two types of samples consisted of the Straumann (R) cylindrical dental implant system (4x10mm) with the SLActive (R) surface and the poly-methyl-methacrylate were used in this study. For strain analysis, the DIC system was used, manufacturer GOM. The optical deformation measurement system consists of special set of stereo cameras and lenses, and ARAMIS software (6.2.0, Braunschweig, Germany). Maximum von Mises strain was 0.30% in the sample with the straight abutment and 0.50% in the sample with the angled abutment. Minimum strain measured by Aramis was 0.01%, detected in the 6mm surface layer of the sample with straight abutment. According to results obtained by Aramis data processing, the 4mm surface layer indicated greater overall strain in apical direction with the strains of 0.18-0.50%, depending on the force intensity. Higher strain was noticed in the thinner surface layers. The angulated abutment induced higher strain in both surface layers than the straight abutment did.
PB  - Springer, New York
T2  - Experimental Techniques
T1  - Digital Image Correlation Analysis of Vertically Loaded Cylindrical Ti-Implants With Straight and Angled Abutments
VL  - 40
IS  - 4
SP  - 1227
EP  - 1233
DO  - 10.1007/s40799-016-0120-y
ER  - 

@article{
author = "Tanasić, Ivan and Šarac, Dušan and Mitrović, Nenad and Tihaček-Šojić, Ljiljana and Misković, Žarko and Milić-Lemić, Aleksandra and Milošević, Miloš",
year = "2016",
abstract = "The purpose of this study was to investigate the influence of the abutment angulation upon the strain distribution pattern for the vertical loading situation by means of the digital image correlation (DIC) method. In addition, to find the correlation between acrylic-layer thickness around implant body and surfaces strain induced by vertical loads. Two types of samples consisted of the Straumann (R) cylindrical dental implant system (4x10mm) with the SLActive (R) surface and the poly-methyl-methacrylate were used in this study. For strain analysis, the DIC system was used, manufacturer GOM. The optical deformation measurement system consists of special set of stereo cameras and lenses, and ARAMIS software (6.2.0, Braunschweig, Germany). Maximum von Mises strain was 0.30% in the sample with the straight abutment and 0.50% in the sample with the angled abutment. Minimum strain measured by Aramis was 0.01%, detected in the 6mm surface layer of the sample with straight abutment. According to results obtained by Aramis data processing, the 4mm surface layer indicated greater overall strain in apical direction with the strains of 0.18-0.50%, depending on the force intensity. Higher strain was noticed in the thinner surface layers. The angulated abutment induced higher strain in both surface layers than the straight abutment did.",
publisher = "Springer, New York",
journal = "Experimental Techniques",
title = "Digital Image Correlation Analysis of Vertically Loaded Cylindrical Ti-Implants With Straight and Angled Abutments",
volume = "40",
number = "4",
pages = "1227-1233",
doi = "10.1007/s40799-016-0120-y"
}

Tanasić, I., Šarac, D., Mitrović, N., Tihaček-Šojić, L., Misković, Ž., Milić-Lemić, A.,& Milošević, M.. (2016). Digital Image Correlation Analysis of Vertically Loaded Cylindrical Ti-Implants With Straight and Angled Abutments. in Experimental Techniques
Springer, New York., 40(4), 1227-1233.
https://doi.org/10.1007/s40799-016-0120-y

Tanasić I, Šarac D, Mitrović N, Tihaček-Šojić L, Misković Ž, Milić-Lemić A, Milošević M. Digital Image Correlation Analysis of Vertically Loaded Cylindrical Ti-Implants With Straight and Angled Abutments. in Experimental Techniques. 2016;40(4):1227-1233.
doi:10.1007/s40799-016-0120-y .

Tanasić, Ivan, Šarac, Dušan, Mitrović, Nenad, Tihaček-Šojić, Ljiljana, Misković, Žarko, Milić-Lemić, Aleksandra, Milošević, Miloš, "Digital Image Correlation Analysis of Vertically Loaded Cylindrical Ti-Implants With Straight and Angled Abutments" in Experimental Techniques, 40, no. 4 (2016):1227-1233,
https://doi.org/10.1007/s40799-016-0120-y . .

TY  - JOUR
AU  - Tanasić, Ivan
AU  - Tihaček-Šojić, Ljiljana
AU  - Mitrović, Nenad
AU  - Milić-Lemić, Aleksandra
AU  - Vukadinović, Miroslav
AU  - Marković, Aleksa
AU  - Milošević, Miloš
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1965
AB  - The aim of this study was to determine, evaluate and measure strain of vertically loaded implant using the digital image correlation method. The Straumann (R) dental implant system with the SLActive (R) surface was used in this study. Implant was immersed in poly-methyl-methacrylate during his hardening process. After preparation procedure a sample of implant and poly-methyl-methacrylate was obtained. This sample was loaded using external load from 0 to 400 N. Maximum strain in the 4 mm surface layer was 0.30% whereas maximum strain in the 6 mm surface layer (opposite side) was 0.20%, detected in the marginal and apical part of implant-poly-methyl-methacrylate sample. Minimum strain measured by Aramis software was 0.01%, detected in the 4 mm surface layer. According to results obtained by Aramis data processing, the 4 mm surface layer indicated higher overall strain in apical direction with the strains of 0.18-0.21%. Increasing the load did not affect the value of maximum strain however, higher load influenced the overall strain concentration increased especially in marginal and apical part of the sample surfaces that surrounded lateral sides of implant body.
PB  - Elsevier Sci Ltd, Oxford
T2  - Measurement
T1  - An attempt to create a standardized (reference) model for experimental investigations on implant's sample
VL  - 72
SP  - 37
EP  - 42
DO  - 10.1016/j.measurement.2015.04.029
ER  - 

@article{
author = "Tanasić, Ivan and Tihaček-Šojić, Ljiljana and Mitrović, Nenad and Milić-Lemić, Aleksandra and Vukadinović, Miroslav and Marković, Aleksa and Milošević, Miloš",
year = "2015",
abstract = "The aim of this study was to determine, evaluate and measure strain of vertically loaded implant using the digital image correlation method. The Straumann (R) dental implant system with the SLActive (R) surface was used in this study. Implant was immersed in poly-methyl-methacrylate during his hardening process. After preparation procedure a sample of implant and poly-methyl-methacrylate was obtained. This sample was loaded using external load from 0 to 400 N. Maximum strain in the 4 mm surface layer was 0.30% whereas maximum strain in the 6 mm surface layer (opposite side) was 0.20%, detected in the marginal and apical part of implant-poly-methyl-methacrylate sample. Minimum strain measured by Aramis software was 0.01%, detected in the 4 mm surface layer. According to results obtained by Aramis data processing, the 4 mm surface layer indicated higher overall strain in apical direction with the strains of 0.18-0.21%. Increasing the load did not affect the value of maximum strain however, higher load influenced the overall strain concentration increased especially in marginal and apical part of the sample surfaces that surrounded lateral sides of implant body.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Measurement",
title = "An attempt to create a standardized (reference) model for experimental investigations on implant's sample",
volume = "72",
pages = "37-42",
doi = "10.1016/j.measurement.2015.04.029"
}

Tanasić, I., Tihaček-Šojić, L., Mitrović, N., Milić-Lemić, A., Vukadinović, M., Marković, A.,& Milošević, M.. (2015). An attempt to create a standardized (reference) model for experimental investigations on implant's sample. in Measurement
Elsevier Sci Ltd, Oxford., 72, 37-42.
https://doi.org/10.1016/j.measurement.2015.04.029

Tanasić I, Tihaček-Šojić L, Mitrović N, Milić-Lemić A, Vukadinović M, Marković A, Milošević M. An attempt to create a standardized (reference) model for experimental investigations on implant's sample. in Measurement. 2015;72:37-42.
doi:10.1016/j.measurement.2015.04.029 .

Tanasić, Ivan, Tihaček-Šojić, Ljiljana, Mitrović, Nenad, Milić-Lemić, Aleksandra, Vukadinović, Miroslav, Marković, Aleksa, Milošević, Miloš, "An attempt to create a standardized (reference) model for experimental investigations on implant's sample" in Measurement, 72 (2015):37-42,
https://doi.org/10.1016/j.measurement.2015.04.029 . .

TY  - JOUR
AU  - Ležaja, Maja
AU  - Veljović, Đorđe
AU  - Manojlović, Dragica
AU  - Milošević, Miloš
AU  - Mitrović, Nenad
AU  - Janaćković, Đorđe
AU  - Miletić, Vesna
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1962
AB  - Objective. To determine the shear bond strength (SBS) between synthetic controlled porous hydroxyapatite (HAP) inserts and restorative materials and dimensional changes of insert-containing restorations during curing. Methods. Cylinder-shaped HAP inserts (4 mm in diameter, 1.6 mm thick) were cemented in dentin discs (5 mm x 1.6 mm), cut mid-coronally from human third molars, using one of the following materials: universal microhybrid composite Filtek Z250, flowable composite Filtek Ultimate or glass-ionomer Vitrebond (all 3M ESPE). SBS of the same materials to HAP inserts was tested in a universal testing machine. Three-dimensional digital image correlation system Aramis (GOM) was used to measure strains and displacements. Data were statistically analyzed using one-way ANOVA with Tukey's post-test (alpha = 0.05). Results. SBS of restorative materials to HAP inserts ranged between 12.2 +/- 2.1 MPa (Filtek Z250) and 0.7 +/- 0.4 MPa (Filtek Z250 without an adhesive). The 'total-etch' approach of adhesive application significantly increased SBS of both Filtek Z250 (12.2 +/- 2.1 MPa) and Filtek Ultimate flowable (9.5 +/- 2.5 MPa) compared to the 'self-etch' approach (8.2 +/- 1.6 MPa and 4.4 +/- 0.9 MPa, respectively) (p  lt  0.05). HAP inserts reduced polymerization shrinkage to below 0.5% as well as displacements in the central region of the restorations. Peripheral shrinkage of restorative materials was similar with and without HAP inserts as were displacements of Filtek Z250 and Vitrebond. Significance. Replacing major part of dentin clinically, especially in large cavities, HAP inserts may shorten clinical working time, improve dimensional stability of the restoration by reducing central shrinkage and displacements and provide adhesive bonding to universal composites following a 'total-etch' approach.
PB  - Elsevier Sci Ltd, Oxford
T2  - Dental Materials
T1  - Bond strength of restorative materials to hydroxyapatite inserts and dimensional changes of insert-containing restorations during polymerization
VL  - 31
IS  - 2
SP  - 171
EP  - 181
DO  - 10.1016/j.dental.2014.11.017
ER  - 

@article{
author = "Ležaja, Maja and Veljović, Đorđe and Manojlović, Dragica and Milošević, Miloš and Mitrović, Nenad and Janaćković, Đorđe and Miletić, Vesna",
year = "2015",
abstract = "Objective. To determine the shear bond strength (SBS) between synthetic controlled porous hydroxyapatite (HAP) inserts and restorative materials and dimensional changes of insert-containing restorations during curing. Methods. Cylinder-shaped HAP inserts (4 mm in diameter, 1.6 mm thick) were cemented in dentin discs (5 mm x 1.6 mm), cut mid-coronally from human third molars, using one of the following materials: universal microhybrid composite Filtek Z250, flowable composite Filtek Ultimate or glass-ionomer Vitrebond (all 3M ESPE). SBS of the same materials to HAP inserts was tested in a universal testing machine. Three-dimensional digital image correlation system Aramis (GOM) was used to measure strains and displacements. Data were statistically analyzed using one-way ANOVA with Tukey's post-test (alpha = 0.05). Results. SBS of restorative materials to HAP inserts ranged between 12.2 +/- 2.1 MPa (Filtek Z250) and 0.7 +/- 0.4 MPa (Filtek Z250 without an adhesive). The 'total-etch' approach of adhesive application significantly increased SBS of both Filtek Z250 (12.2 +/- 2.1 MPa) and Filtek Ultimate flowable (9.5 +/- 2.5 MPa) compared to the 'self-etch' approach (8.2 +/- 1.6 MPa and 4.4 +/- 0.9 MPa, respectively) (p  lt  0.05). HAP inserts reduced polymerization shrinkage to below 0.5% as well as displacements in the central region of the restorations. Peripheral shrinkage of restorative materials was similar with and without HAP inserts as were displacements of Filtek Z250 and Vitrebond. Significance. Replacing major part of dentin clinically, especially in large cavities, HAP inserts may shorten clinical working time, improve dimensional stability of the restoration by reducing central shrinkage and displacements and provide adhesive bonding to universal composites following a 'total-etch' approach.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Dental Materials",
title = "Bond strength of restorative materials to hydroxyapatite inserts and dimensional changes of insert-containing restorations during polymerization",
volume = "31",
number = "2",
pages = "171-181",
doi = "10.1016/j.dental.2014.11.017"
}

Ležaja, M., Veljović, Đ., Manojlović, D., Milošević, M., Mitrović, N., Janaćković, Đ.,& Miletić, V.. (2015). Bond strength of restorative materials to hydroxyapatite inserts and dimensional changes of insert-containing restorations during polymerization. in Dental Materials
Elsevier Sci Ltd, Oxford., 31(2), 171-181.
https://doi.org/10.1016/j.dental.2014.11.017

Ležaja M, Veljović Đ, Manojlović D, Milošević M, Mitrović N, Janaćković Đ, Miletić V. Bond strength of restorative materials to hydroxyapatite inserts and dimensional changes of insert-containing restorations during polymerization. in Dental Materials. 2015;31(2):171-181.
doi:10.1016/j.dental.2014.11.017 .

Ležaja, Maja, Veljović, Đorđe, Manojlović, Dragica, Milošević, Miloš, Mitrović, Nenad, Janaćković, Đorđe, Miletić, Vesna, "Bond strength of restorative materials to hydroxyapatite inserts and dimensional changes of insert-containing restorations during polymerization" in Dental Materials, 31, no. 2 (2015):171-181,
https://doi.org/10.1016/j.dental.2014.11.017 . .

TY  - JOUR
AU  - Tatić, Uroš
AU  - Miletić, Vesna
AU  - Sedmak, Simon
AU  - Mitrović, Nenad
AU  - Ezdenci, Andrea
AU  - Gubeljak, Lara
AU  - Milošević, Miloš
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1935
AB  - In restorative dentistry it is common practice to replace amalgams with resin based dental composites, with minimal or no additional cavity preparation. Polymerization shrinkage of dental composites causes stress, whose influence is transferred to tooth tissue which may result in the occurrence of micro-cracks and post-operative pain. The aim of this study is to determine the effects of different cavity shapes on stress and strain distribution which occurred due to composite shrinkage. Toward this aim, experimental (Digital Image Correlation method – DIC) and numerical (finite element method – FEM) techniques are used. The numerical model is verified by comparing its results with those obtained by experimental methods. Upon verification, the 3D model of the cavity is modified to develop two new models with the same tooth geometry, but different cavity shapes, in order to determine the effect of their shapes on stress distribution. It is determined that the thickness of dentine around the cavity plays a significant role in stress and strain distribution.
AB  - U restorativnoj stomatologiji je učestala praksa zamene amalgama stomatološkim kompozitima na bazi smole, uz minimalnu dodatnu pripremu kaviteta ili bez nje. Polimerizacijsko skupljanje stomatoloških kompozita prouzrokuje napon, čiji se uticaj prenosi na zubno tkivo, što može dovesti do pojave mikroprslina i postoperativnih bolova. Cilj ovog rada je da se odredi uticaj različitih oblika kaviteta na raspodelu napona i deformacija. izazvanih skupljanjem kompozita. U tu svrhu su korišćene eksperimentalna metoda korelacije digitalnih slika (DIC) i numerička metoda konačnih elemenata (FEM). Numerički model je verifikovan poređenjem rezultata proračuna sa rezultatima dobijenim eksperimentalnom metodom. Nakon verifikacije, postojeći 3D model kaviteta je modifikovan u cilju dobijanja dva nova modela sa istom geometrijom zuba i različitim oblicima kaviteta, kako bi se odredio uticaj ovih oblika na raspodelu napona. Utvrđeno je da debljina dentina oko kaviteta igra značajnu ulogu u raspodeli napona i deformacija.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Integritet i vek konstrukcija
T1  - Influence of the cavity shape in restorative dentistry on the stress-strain distribution in dentine and enamel caused by polymerization
T1  - Uticaj oblika kaviteta u restorativnoj stomatologiji na raspodelu napon-deformacija u dentinu i gleđi izazvanoj polimerizacijom
VL  - 14
IS  - 3
SP  - 199
EP  - 204
UR  - https://hdl.handle.net/21.15107/rcub_smile_1935
ER  - 

@article{
author = "Tatić, Uroš and Miletić, Vesna and Sedmak, Simon and Mitrović, Nenad and Ezdenci, Andrea and Gubeljak, Lara and Milošević, Miloš",
year = "2014",
abstract = "In restorative dentistry it is common practice to replace amalgams with resin based dental composites, with minimal or no additional cavity preparation. Polymerization shrinkage of dental composites causes stress, whose influence is transferred to tooth tissue which may result in the occurrence of micro-cracks and post-operative pain. The aim of this study is to determine the effects of different cavity shapes on stress and strain distribution which occurred due to composite shrinkage. Toward this aim, experimental (Digital Image Correlation method – DIC) and numerical (finite element method – FEM) techniques are used. The numerical model is verified by comparing its results with those obtained by experimental methods. Upon verification, the 3D model of the cavity is modified to develop two new models with the same tooth geometry, but different cavity shapes, in order to determine the effect of their shapes on stress distribution. It is determined that the thickness of dentine around the cavity plays a significant role in stress and strain distribution., U restorativnoj stomatologiji je učestala praksa zamene amalgama stomatološkim kompozitima na bazi smole, uz minimalnu dodatnu pripremu kaviteta ili bez nje. Polimerizacijsko skupljanje stomatoloških kompozita prouzrokuje napon, čiji se uticaj prenosi na zubno tkivo, što može dovesti do pojave mikroprslina i postoperativnih bolova. Cilj ovog rada je da se odredi uticaj različitih oblika kaviteta na raspodelu napona i deformacija. izazvanih skupljanjem kompozita. U tu svrhu su korišćene eksperimentalna metoda korelacije digitalnih slika (DIC) i numerička metoda konačnih elemenata (FEM). Numerički model je verifikovan poređenjem rezultata proračuna sa rezultatima dobijenim eksperimentalnom metodom. Nakon verifikacije, postojeći 3D model kaviteta je modifikovan u cilju dobijanja dva nova modela sa istom geometrijom zuba i različitim oblicima kaviteta, kako bi se odredio uticaj ovih oblika na raspodelu napona. Utvrđeno je da debljina dentina oko kaviteta igra značajnu ulogu u raspodeli napona i deformacija.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Integritet i vek konstrukcija",
title = "Influence of the cavity shape in restorative dentistry on the stress-strain distribution in dentine and enamel caused by polymerization, Uticaj oblika kaviteta u restorativnoj stomatologiji na raspodelu napon-deformacija u dentinu i gleđi izazvanoj polimerizacijom",
volume = "14",
number = "3",
pages = "199-204",
url = "https://hdl.handle.net/21.15107/rcub_smile_1935"
}

Tatić, U., Miletić, V., Sedmak, S., Mitrović, N., Ezdenci, A., Gubeljak, L.,& Milošević, M.. (2014). Influence of the cavity shape in restorative dentistry on the stress-strain distribution in dentine and enamel caused by polymerization. in Integritet i vek konstrukcija
Institut za ispitivanje materijala, Beograd., 14(3), 199-204.
https://hdl.handle.net/21.15107/rcub_smile_1935

Tatić U, Miletić V, Sedmak S, Mitrović N, Ezdenci A, Gubeljak L, Milošević M. Influence of the cavity shape in restorative dentistry on the stress-strain distribution in dentine and enamel caused by polymerization. in Integritet i vek konstrukcija. 2014;14(3):199-204.
https://hdl.handle.net/21.15107/rcub_smile_1935 .

Tatić, Uroš, Miletić, Vesna, Sedmak, Simon, Mitrović, Nenad, Ezdenci, Andrea, Gubeljak, Lara, Milošević, Miloš, "Influence of the cavity shape in restorative dentistry on the stress-strain distribution in dentine and enamel caused by polymerization" in Integritet i vek konstrukcija, 14, no. 3 (2014):199-204,
https://hdl.handle.net/21.15107/rcub_smile_1935 .

TY  - CONF
AU  - Milošević, Miloš
AU  - Tatić, Uroš
AU  - Sedmak, Simon
AU  - Perović, Jasmina
AU  - Miletić, Vesna
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1883
AB  - The purpose of this paper was to determine tensile loading that leads to dental restoration failure, i.e. the critical values of stress. In order to analyze stress distribution within the restoration and tooth, mechanical properties of materials and tissues, such as Young modulus and Poisson's ratio were taken into account. An additional purpose of the paper was to determine whether tensile or shear stresses that occur in the restorative composite and the surrounding enamel cause this failure. Tensile stress is caused by forces acting in the direction perpendicular to the cross-section of a given element, whereas shear stresses are caused by forces parallel to said cross section. A 3D numerical model of a tooth including three different materials (dentine, enamel and compo-site) was made and used for these calculations. These results will be used as a base for the physical experiment.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
C3  - Proceedings of the 14th Symposium on Experimental Stress Analysis & Materials Testing
T1  - Calculation of maximum tensile and shear forces in restorative materials using finite element method
VL  - 601
SP  - 151
EP  - +
DO  - 10.4028/www.scientific.net/KEM.601.151
ER  - 

@conference{
author = "Milošević, Miloš and Tatić, Uroš and Sedmak, Simon and Perović, Jasmina and Miletić, Vesna",
year = "2014",
abstract = "The purpose of this paper was to determine tensile loading that leads to dental restoration failure, i.e. the critical values of stress. In order to analyze stress distribution within the restoration and tooth, mechanical properties of materials and tissues, such as Young modulus and Poisson's ratio were taken into account. An additional purpose of the paper was to determine whether tensile or shear stresses that occur in the restorative composite and the surrounding enamel cause this failure. Tensile stress is caused by forces acting in the direction perpendicular to the cross-section of a given element, whereas shear stresses are caused by forces parallel to said cross section. A 3D numerical model of a tooth including three different materials (dentine, enamel and compo-site) was made and used for these calculations. These results will be used as a base for the physical experiment.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Proceedings of the 14th Symposium on Experimental Stress Analysis & Materials Testing",
title = "Calculation of maximum tensile and shear forces in restorative materials using finite element method",
volume = "601",
pages = "151-+",
doi = "10.4028/www.scientific.net/KEM.601.151"
}

Milošević, M., Tatić, U., Sedmak, S., Perović, J.,& Miletić, V.. (2014). Calculation of maximum tensile and shear forces in restorative materials using finite element method. in Proceedings of the 14th Symposium on Experimental Stress Analysis & Materials Testing
Trans Tech Publications Ltd, Durnten-Zurich., 601, 151-+.
https://doi.org/10.4028/www.scientific.net/KEM.601.151

Milošević M, Tatić U, Sedmak S, Perović J, Miletić V. Calculation of maximum tensile and shear forces in restorative materials using finite element method. in Proceedings of the 14th Symposium on Experimental Stress Analysis & Materials Testing. 2014;601:151-+.
doi:10.4028/www.scientific.net/KEM.601.151 .

Milošević, Miloš, Tatić, Uroš, Sedmak, Simon, Perović, Jasmina, Miletić, Vesna, "Calculation of maximum tensile and shear forces in restorative materials using finite element method" in Proceedings of the 14th Symposium on Experimental Stress Analysis & Materials Testing, 601 (2014):151-+,
https://doi.org/10.4028/www.scientific.net/KEM.601.151 . .

TY  - CONF
AU  - Milošević, Miloš
AU  - Mitrović, Nenad
AU  - Miletić, Vesna
AU  - Tatić, Uroš
AU  - Ezdenci, Andrea
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1858
AB  - Local polymerization stress occurs due to polymerization shrinkage of resin based composites adhesively bonded to tooth tissues. Shrinkage causes local displacements of cavity walls, with possible occurrence of micro-cracks in the enamel, dentin and/or material itself. In order to design a cavity for experimental testing of polymerization shrinkage of dental composites using 3D optical analysis, in this paper finite element method (FEM) was used to analyze numerical models with different cavity radiuses. 3D optical strain and displacement analysis of composite materials and cavity walls is limited by equipment sensitivity i.e. 0.01% for strain and 1 micron for displacement. This paper presents the development of 3D computer premolar models with varying cavity radiuses, and local stress, strain and displacement analysis using FEM. Model verification was performed by comparing obtained results with data from the scientific literature. Using the FEM analysis of local strains, displacements and stresses exerted on cavity walls, it was concluded that the model with 1 mm radius was optimal for experimental optical 3D displacement analysis.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
C3  - Local Mechanical Properties Ix
T1  - Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method
VL  - 586
SP  - 202
EP  - +
DO  - 10.4028/www.scientific.net/KEM.586.202
ER  - 

@conference{
author = "Milošević, Miloš and Mitrović, Nenad and Miletić, Vesna and Tatić, Uroš and Ezdenci, Andrea",
year = "2014",
abstract = "Local polymerization stress occurs due to polymerization shrinkage of resin based composites adhesively bonded to tooth tissues. Shrinkage causes local displacements of cavity walls, with possible occurrence of micro-cracks in the enamel, dentin and/or material itself. In order to design a cavity for experimental testing of polymerization shrinkage of dental composites using 3D optical analysis, in this paper finite element method (FEM) was used to analyze numerical models with different cavity radiuses. 3D optical strain and displacement analysis of composite materials and cavity walls is limited by equipment sensitivity i.e. 0.01% for strain and 1 micron for displacement. This paper presents the development of 3D computer premolar models with varying cavity radiuses, and local stress, strain and displacement analysis using FEM. Model verification was performed by comparing obtained results with data from the scientific literature. Using the FEM analysis of local strains, displacements and stresses exerted on cavity walls, it was concluded that the model with 1 mm radius was optimal for experimental optical 3D displacement analysis.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Local Mechanical Properties Ix",
title = "Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method",
volume = "586",
pages = "202-+",
doi = "10.4028/www.scientific.net/KEM.586.202"
}

Milošević, M., Mitrović, N., Miletić, V., Tatić, U.,& Ezdenci, A.. (2014). Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method. in Local Mechanical Properties Ix
Trans Tech Publications Ltd, Durnten-Zurich., 586, 202-+.
https://doi.org/10.4028/www.scientific.net/KEM.586.202

Milošević M, Mitrović N, Miletić V, Tatić U, Ezdenci A. Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method. in Local Mechanical Properties Ix. 2014;586:202-+.
doi:10.4028/www.scientific.net/KEM.586.202 .

Milošević, Miloš, Mitrović, Nenad, Miletić, Vesna, Tatić, Uroš, Ezdenci, Andrea, "Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method" in Local Mechanical Properties Ix, 586 (2014):202-+,
https://doi.org/10.4028/www.scientific.net/KEM.586.202 . .

TY  - JOUR
AU  - Tanasić, Ivan
AU  - Tihaček-Šojić, Ljiljana
AU  - Milić-Lemić, Aleksandra
AU  - Đurić, Marija
AU  - Mitrović, Nenad
AU  - Milošević, Miloš
AU  - Sedmak, Aleksandar
PY  - 2012
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1732
AB  - The aim of this study was to register and measure any deformation of mandible models under load. The method for full field measurement of strain is done by using the ARAMIS three-dimensional image correlation system. The system uses two digital cameras that provide a synchronized stereo view of the specimen and the results show the complete strain field during the tests. The biggest deformation values were just under the working force of the biggest intensity 500 N, and for the region of the lower second premolar the deformation is 625 mu m. The following study is presented that highlight the use of stereometric measuring system for modern research. It is shown that this measuring methodology can capture the trends of the experiments.
PB  - Collegium Antropologicum, Zagreb
T2  - Collegium Antropologicum
T1  - Optical Aspect of Deformation Analysis in the Bone-Denture Complex
VL  - 36
IS  - 1
SP  - 173
EP  - 178
UR  - https://hdl.handle.net/21.15107/rcub_smile_1732
ER  - 

@article{
author = "Tanasić, Ivan and Tihaček-Šojić, Ljiljana and Milić-Lemić, Aleksandra and Đurić, Marija and Mitrović, Nenad and Milošević, Miloš and Sedmak, Aleksandar",
year = "2012",
abstract = "The aim of this study was to register and measure any deformation of mandible models under load. The method for full field measurement of strain is done by using the ARAMIS three-dimensional image correlation system. The system uses two digital cameras that provide a synchronized stereo view of the specimen and the results show the complete strain field during the tests. The biggest deformation values were just under the working force of the biggest intensity 500 N, and for the region of the lower second premolar the deformation is 625 mu m. The following study is presented that highlight the use of stereometric measuring system for modern research. It is shown that this measuring methodology can capture the trends of the experiments.",
publisher = "Collegium Antropologicum, Zagreb",
journal = "Collegium Antropologicum",
title = "Optical Aspect of Deformation Analysis in the Bone-Denture Complex",
volume = "36",
number = "1",
pages = "173-178",
url = "https://hdl.handle.net/21.15107/rcub_smile_1732"
}

Tanasić, I., Tihaček-Šojić, L., Milić-Lemić, A., Đurić, M., Mitrović, N., Milošević, M.,& Sedmak, A.. (2012). Optical Aspect of Deformation Analysis in the Bone-Denture Complex. in Collegium Antropologicum
Collegium Antropologicum, Zagreb., 36(1), 173-178.
https://hdl.handle.net/21.15107/rcub_smile_1732

Tanasić I, Tihaček-Šojić L, Milić-Lemić A, Đurić M, Mitrović N, Milošević M, Sedmak A. Optical Aspect of Deformation Analysis in the Bone-Denture Complex. in Collegium Antropologicum. 2012;36(1):173-178.
https://hdl.handle.net/21.15107/rcub_smile_1732 .

Tanasić, Ivan, Tihaček-Šojić, Ljiljana, Milić-Lemić, Aleksandra, Đurić, Marija, Mitrović, Nenad, Milošević, Miloš, Sedmak, Aleksandar, "Optical Aspect of Deformation Analysis in the Bone-Denture Complex" in Collegium Antropologicum, 36, no. 1 (2012):173-178,
https://hdl.handle.net/21.15107/rcub_smile_1732 .

TY  - JOUR
AU  - Tihaček-Šojić, Ljiljana
AU  - Milić-Lemić, Aleksandra
AU  - Tanasić, Ivan
AU  - Mitrović, Nenad
AU  - Milošević, Miloš
AU  - Petrović, Aleksandar
PY  - 2012
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1677
AB  - Background: Understanding of the biomechanical consequences of the stresses generated to the supporting bone during occlusal loading is significant for improving the design and clinical planning process in partial edentulism therapy. Objective: The aim of this study was to analyse the distribution of strain and displacement on the partially dentate lower jaw rehabilitated with an partial denture (RPD) and to compare it to the strain and displacement distribution on a partially dentate lower jaw rehabilitated with a cantilever fixed partial denture (FPD). Material and methods: The experimental models were a partially dentate mandible with full-arch PFM crowns and RPD and a partially dentate mandible rehabilitated with a full-arch cantilever FPD. Strains and displacement were measured using the Digital Image Correlation Method. Results: Displacement values of the first experimental model ranged from 0.31 to 0.54 mm with strains from 1.35 to 2.34%. Analysis of the second experimental model results showed displacement values from 0 to 0.34 mm, while strains were in the range of 0-1.40%. Conclusion: Higher displacements and strains of bone tissue were observed below the RPD, especially in the region of the distal abutment and distal portion of the free-end saddle. Strains within bone and the bone-denture contact area were mostly influenced by the teeth and denture vertical displacement.
PB  - Wiley, Hoboken
T2  - Gerodontology
T1  - Compressive strains and displacement in a partially dentate lower jaw rehabilitated with two different treatment modalities
VL  - 29
IS  - 2
SP  - E851
EP  - E857
DO  - 10.1111/j.1741-2358.2011.00572.x
ER  - 

@article{
author = "Tihaček-Šojić, Ljiljana and Milić-Lemić, Aleksandra and Tanasić, Ivan and Mitrović, Nenad and Milošević, Miloš and Petrović, Aleksandar",
year = "2012",
abstract = "Background: Understanding of the biomechanical consequences of the stresses generated to the supporting bone during occlusal loading is significant for improving the design and clinical planning process in partial edentulism therapy. Objective: The aim of this study was to analyse the distribution of strain and displacement on the partially dentate lower jaw rehabilitated with an partial denture (RPD) and to compare it to the strain and displacement distribution on a partially dentate lower jaw rehabilitated with a cantilever fixed partial denture (FPD). Material and methods: The experimental models were a partially dentate mandible with full-arch PFM crowns and RPD and a partially dentate mandible rehabilitated with a full-arch cantilever FPD. Strains and displacement were measured using the Digital Image Correlation Method. Results: Displacement values of the first experimental model ranged from 0.31 to 0.54 mm with strains from 1.35 to 2.34%. Analysis of the second experimental model results showed displacement values from 0 to 0.34 mm, while strains were in the range of 0-1.40%. Conclusion: Higher displacements and strains of bone tissue were observed below the RPD, especially in the region of the distal abutment and distal portion of the free-end saddle. Strains within bone and the bone-denture contact area were mostly influenced by the teeth and denture vertical displacement.",
publisher = "Wiley, Hoboken",
journal = "Gerodontology",
title = "Compressive strains and displacement in a partially dentate lower jaw rehabilitated with two different treatment modalities",
volume = "29",
number = "2",
pages = "E851-E857",
doi = "10.1111/j.1741-2358.2011.00572.x"
}

Tihaček-Šojić, L., Milić-Lemić, A., Tanasić, I., Mitrović, N., Milošević, M.,& Petrović, A.. (2012). Compressive strains and displacement in a partially dentate lower jaw rehabilitated with two different treatment modalities. in Gerodontology
Wiley, Hoboken., 29(2), E851-E857.
https://doi.org/10.1111/j.1741-2358.2011.00572.x

Tihaček-Šojić L, Milić-Lemić A, Tanasić I, Mitrović N, Milošević M, Petrović A. Compressive strains and displacement in a partially dentate lower jaw rehabilitated with two different treatment modalities. in Gerodontology. 2012;29(2):E851-E857.
doi:10.1111/j.1741-2358.2011.00572.x .

Tihaček-Šojić, Ljiljana, Milić-Lemić, Aleksandra, Tanasić, Ivan, Mitrović, Nenad, Milošević, Miloš, Petrović, Aleksandar, "Compressive strains and displacement in a partially dentate lower jaw rehabilitated with two different treatment modalities" in Gerodontology, 29, no. 2 (2012):E851-E857,
https://doi.org/10.1111/j.1741-2358.2011.00572.x . .

TY  - JOUR
AU  - Miletić, Vesna
AU  - Manojlović, Dragica
AU  - Milošević, Miloš
AU  - Mitrović, Nenad
AU  - Savić-Sikoparija, Tatjana
AU  - Maneski, Tasko
PY  - 2011
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1634
AB  - Objective: To analyze local shrinkage patterns in terms of surface shrinkage strains and z-axis displacements in a novel self-adhering composite and a conventional flowable composite using three-dimensional digital image correlation. Method and Materials: Seven samples of each material were prepared in cylindrical Teflon molds 5 mm in diameter and 2 mm thick. The surface of the composites facing the cameras was sprayed with a fine layer of black paint. The unsprayed surface of each sample, opposite the one facing the cameras, was light cured for 40 seconds using a light-emitting diode unit. Digital images were taken immediately before and after light curing. Shrinkage was calculated as von Mises strains, and z-axis displacements were measured in microns. The data were statistically analyzed using two-way ANOVA at alpha = .05. Results: No significant difference in strain was observed between the two materials (P > .05). Strain distribution was nonhomogenous-the outer segments showed significantly higher strains than central parts in each material (P  lt  .05). The opposite was observed for z-axis displacements-significantly greater displacements were found in central parts compared to the outer segments (P  lt  .05). Conclusion: Different shrinkage vectors across the surface of the tested flowable composites showed predominant in-plane shrinkage of the outer surface segments and out-of-plane shrinkage of the inner segments. These complex local deformation patterns in composite materials indicate zones of different types of forces exerted on the tooth-restoration interface in situ. (Quintessence Int 2011;42:797-804)
T2  - Quintessence International
T1  - Analysis of local shrinkage patterns of self-adhering and flowable composites using 3D digital image correlation
VL  - 42
IS  - 9
SP  - 797
EP  - 804
UR  - https://hdl.handle.net/21.15107/rcub_smile_1634
ER  - 

@article{
author = "Miletić, Vesna and Manojlović, Dragica and Milošević, Miloš and Mitrović, Nenad and Savić-Sikoparija, Tatjana and Maneski, Tasko",
year = "2011",
abstract = "Objective: To analyze local shrinkage patterns in terms of surface shrinkage strains and z-axis displacements in a novel self-adhering composite and a conventional flowable composite using three-dimensional digital image correlation. Method and Materials: Seven samples of each material were prepared in cylindrical Teflon molds 5 mm in diameter and 2 mm thick. The surface of the composites facing the cameras was sprayed with a fine layer of black paint. The unsprayed surface of each sample, opposite the one facing the cameras, was light cured for 40 seconds using a light-emitting diode unit. Digital images were taken immediately before and after light curing. Shrinkage was calculated as von Mises strains, and z-axis displacements were measured in microns. The data were statistically analyzed using two-way ANOVA at alpha = .05. Results: No significant difference in strain was observed between the two materials (P > .05). Strain distribution was nonhomogenous-the outer segments showed significantly higher strains than central parts in each material (P  lt  .05). The opposite was observed for z-axis displacements-significantly greater displacements were found in central parts compared to the outer segments (P  lt  .05). Conclusion: Different shrinkage vectors across the surface of the tested flowable composites showed predominant in-plane shrinkage of the outer surface segments and out-of-plane shrinkage of the inner segments. These complex local deformation patterns in composite materials indicate zones of different types of forces exerted on the tooth-restoration interface in situ. (Quintessence Int 2011;42:797-804)",
journal = "Quintessence International",
title = "Analysis of local shrinkage patterns of self-adhering and flowable composites using 3D digital image correlation",
volume = "42",
number = "9",
pages = "797-804",
url = "https://hdl.handle.net/21.15107/rcub_smile_1634"
}

Miletić, V., Manojlović, D., Milošević, M., Mitrović, N., Savić-Sikoparija, T.,& Maneski, T.. (2011). Analysis of local shrinkage patterns of self-adhering and flowable composites using 3D digital image correlation. in Quintessence International, 42(9), 797-804.
https://hdl.handle.net/21.15107/rcub_smile_1634

Miletić V, Manojlović D, Milošević M, Mitrović N, Savić-Sikoparija T, Maneski T. Analysis of local shrinkage patterns of self-adhering and flowable composites using 3D digital image correlation. in Quintessence International. 2011;42(9):797-804.
https://hdl.handle.net/21.15107/rcub_smile_1634 .

Miletić, Vesna, Manojlović, Dragica, Milošević, Miloš, Mitrović, Nenad, Savić-Sikoparija, Tatjana, Maneski, Tasko, "Analysis of local shrinkage patterns of self-adhering and flowable composites using 3D digital image correlation" in Quintessence International, 42, no. 9 (2011):797-804,
https://hdl.handle.net/21.15107/rcub_smile_1634 .

TY  - JOUR
AU  - Milošević, Miloš
AU  - Miletić, Vesna
AU  - Mitrović, Nenad
AU  - Manojlović, Dragica
AU  - Savić-Sikoparija, Tatjana
AU  - Maneski, Tasko
PY  - 2011
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1606
AB  - Polymerization shrinkage is the single most important local deformation of dental composites that has a substantial effect on the quality of the tooth-restoration interface in clinical conditions. The aim of this study was to investigate the possibility to analyze local deformation fields of a dental composite upon polymerization using the 3D optical method of digital image correlation with two cameras. Conventional, microhybrid composite samples were prepared in custom-made Teflon molds and polymerized with a conventional halogen light. Local deformation fields were determined using the two-camera system, Aramis 2M, by correlating sample dimensions before and after polymerization. The greatest deformations of up to 6 % with the average of 3.5 % were observed along the periphery of the samples in contrast to substantially lower deformations of about 1-1.5% in the central parts. Polymerization of dental composites yields heterogeneous deformation with variations in shrinkage values. The 3D optical system is a promising tool enabling qualitative and quantitative mapping of local deformation fields in dental composites.
PB  - Chemicke Listy, Prague 6
T2  - Chemicke Listy
T1  - Measurement of local deformation fields in dental composites using 3d optical system
VL  - 105
SP  - S751
EP  - S753
UR  - https://hdl.handle.net/21.15107/rcub_smile_1606
ER  - 

@article{
author = "Milošević, Miloš and Miletić, Vesna and Mitrović, Nenad and Manojlović, Dragica and Savić-Sikoparija, Tatjana and Maneski, Tasko",
year = "2011",
abstract = "Polymerization shrinkage is the single most important local deformation of dental composites that has a substantial effect on the quality of the tooth-restoration interface in clinical conditions. The aim of this study was to investigate the possibility to analyze local deformation fields of a dental composite upon polymerization using the 3D optical method of digital image correlation with two cameras. Conventional, microhybrid composite samples were prepared in custom-made Teflon molds and polymerized with a conventional halogen light. Local deformation fields were determined using the two-camera system, Aramis 2M, by correlating sample dimensions before and after polymerization. The greatest deformations of up to 6 % with the average of 3.5 % were observed along the periphery of the samples in contrast to substantially lower deformations of about 1-1.5% in the central parts. Polymerization of dental composites yields heterogeneous deformation with variations in shrinkage values. The 3D optical system is a promising tool enabling qualitative and quantitative mapping of local deformation fields in dental composites.",
publisher = "Chemicke Listy, Prague 6",
journal = "Chemicke Listy",
title = "Measurement of local deformation fields in dental composites using 3d optical system",
volume = "105",
pages = "S751-S753",
url = "https://hdl.handle.net/21.15107/rcub_smile_1606"
}

Milošević, M., Miletić, V., Mitrović, N., Manojlović, D., Savić-Sikoparija, T.,& Maneski, T.. (2011). Measurement of local deformation fields in dental composites using 3d optical system. in Chemicke Listy
Chemicke Listy, Prague 6., 105, S751-S753.
https://hdl.handle.net/21.15107/rcub_smile_1606

Milošević M, Miletić V, Mitrović N, Manojlović D, Savić-Sikoparija T, Maneski T. Measurement of local deformation fields in dental composites using 3d optical system. in Chemicke Listy. 2011;105:S751-S753.
https://hdl.handle.net/21.15107/rcub_smile_1606 .

Milošević, Miloš, Miletić, Vesna, Mitrović, Nenad, Manojlović, Dragica, Savić-Sikoparija, Tatjana, Maneski, Tasko, "Measurement of local deformation fields in dental composites using 3d optical system" in Chemicke Listy, 105 (2011):S751-S753,
https://hdl.handle.net/21.15107/rcub_smile_1606 .