Zeković, Ivana

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orcid::0000-0001-5596-2897
  • Zeković, Ivana (2)
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Author's Bibliography

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

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

(Elsevier, Amsterdam, 2016)

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

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

(Wiley, Hoboken, 2016)

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