Affiliation:
1. ATATÜRK ÜNİVERSİTESİ, DİŞ HEKİMLİĞİ FAKÜLTESİ, DİŞ HEKİMLİĞİ PR.
Abstract
The aim of this study is to evaluate the color stability, translucency and hardness of eight different composite resins, after thermal cycling and immersion in beverages. Six light-cured dimethacrylate-based composite (Clearfil Majesty Esthetic, Clearfil Majesty Posterior, Grandio, Grandio Flow, Arabesk Top, Valux Plus), an ormocer (Admira) and a silorane-based composite (Filtek Silorane) were tested in this study. Fifteen samples (8x2 mm) from each composite were prepared. All samples were subjected to thermal cycling [(5.0 ± 0.5)~(55.0 ± 1.0) °C, 1000 cycles]. After thermal cycling, fifteen specimens in each group were divided into three subgroups (n = 5): distilled water (control), coffee, and red wine at 37°C for 30 days. With a spectrophotometer, the △E and Translucency Parameter (TP) were calculated against white and black backgrounds. Color, translucency and hardness of all samples were remeasured baseline, after thermal cycles and after immersion in beverages. The data were analyzed using repeated measured analysis of variance and Bonferroni multiple-comparison test (P3.3). The effect of thermal cycles on color and transluceny was not statistically significant (P>0.05). TP values generally decreased especially after immersion in red wine (P
Reference51 articles.
1. 1. Villarroel, M., et al., Direct Esthetic Restorations Based on Translucency and Opacity of Composite Resins. Journal of Esthetic and Restorative Dentistry, 2011. 23(2): p. 73-87.
2. 2. Obrien, W.J., Double-Layer Effect and Other Optical Phenomena Related to Aesthetics. Dental Clinics of North America, 1985. 29(4): p. 667-&.
3. 3. Poggio, C., et al., Color Stability of New Esthetic Restorative Materials: A Spectrophotometric Analysis. Journal of Functional Biomaterials, 2017. 8(3).
4. 4. Carossa, S., et al., Influence of posts and cores on light transmission through different all-ceramic crowns: Spectrophotometric and clinical evaluation. International Journal of Prosthodontics, 2001. 14(1): p. 9-14.
5. 5. Pissis, P., Fabrication of a metal-free ceramic restoration utilizing the monobloc technique. Pract Periodontics Aesthet Dent, 1995. 7(5): p. 83-94.