Çağatay Barutcigil1, Mehmet Yıldız. 1. Department of Restorative Dentistry, Faculty of Dentistry, Akdeniz University, 07058 Antalya, Turkey. c.barutcugil@yahoo.com
Abstract
OBJECTIVE: The purpose of this study was to evaluate the intrinsic and extrinsic color change of dimethacrylate and silorane-based composites. MATERIALS AND METHODS: Five contemporary composites were included within the study (Filtek LS Low Shrink Posterior Restorative [SIL], Filtek SupremeXT [SPR], Filtek Z250 [Z25], Filtek P60 [P60], and Admira [ADM]). Twenty-five specimens (8-mm diameter, 1.5-mm thickness) were prepared for each composite. After baseline color measurements were taken, specimens were immersed in 4 staining solutions (red wine, coffee, cola, and tea) or distilled water (n=5). After a 24-h and 1-month immersion, the color values of each specimen were remeasured and the color change values (ΔE(ab)(*)) were calculated. Statistical analyses were evaluated by one-way ANOVA and Tukey HSD test. RESULTS: Amongst the solutions, red wine had the highest ΔE(ab)(*) value in all the composite restoratives. After the final measurement, ADM exhibited the lowest discoloration, whereas SPR exhibited the highest color change. Additionally, the color change for SIL after 1 month in distilled water was higher than the clinically accepted cut-off of 3.3. This change was correlated with an increasing L value according to the multiple regression analysis. CONCLUSION: All of the restorative materials used in this study were susceptible to staining by commonly consumed beverages drinks, especially red wine and coffee; however, in water, only SIL became whiter with time.
OBJECTIVE: The purpose of this study was to evaluate the intrinsic and extrinsic color change of dimethacrylate and silorane-based composites. MATERIALS AND METHODS: Five contemporary composites were included within the study (Filtek LS Low Shrink Posterior Restorative [SIL], Filtek SupremeXT [SPR], Filtek Z250 [Z25], Filtek P60 [P60], and Admira [ADM]). Twenty-five specimens (8-mm diameter, 1.5-mm thickness) were prepared for each composite. After baseline color measurements were taken, specimens were immersed in 4 staining solutions (red wine, coffee, cola, and tea) or distilled water (n=5). After a 24-h and 1-month immersion, the color values of each specimen were remeasured and the color change values (ΔE(ab)(*)) were calculated. Statistical analyses were evaluated by one-way ANOVA and Tukey HSD test. RESULTS: Amongst the solutions, red wine had the highest ΔE(ab)(*) value in all the composite restoratives. After the final measurement, ADM exhibited the lowest discoloration, whereas SPR exhibited the highest color change. Additionally, the color change for SIL after 1 month in distilled water was higher than the clinically accepted cut-off of 3.3. This change was correlated with an increasing L value according to the multiple regression analysis. CONCLUSION: All of the restorative materials used in this study were susceptible to staining by commonly consumed beverages drinks, especially red wine and coffee; however, in water, only SIL became whiter with time.
Authors: Maria Luísa de Alencar E Silva Leite; Fábia Danielle Sales da Cunha Medeiros E Silva; Sônia Saeger Meireles; Rosângela Marques Duarte; Ana Karina Maciel Andrade Journal: Eur J Dent Date: 2014-07