Does hot coffee or cold coffee cause more discoloration on resin based composite materials?

Abstract

Purpose This study aimed to examine the effect of beverages at different temperatures on the coloring of composites. Materials and Methods A total of 48 cylindrical samples, 24 of which were prepared from 2 composite materials (G'aenial; Estelite Σ Quick), were included in the study. The sample dimensions were standardized at 2 10 mm2. After the polishing, the initial color measurements were performed using a spectrophotometer. The samples were divided into 3 subgroups as distilled water, hot coffee (60 °C) and cold coffee (0 °C) (n=8). During the 7th and 30th days, the samples were immersed in the solutions for 15 min every day. Color measurements were repeated on the 7th and 30th days. Data were analyzed using a two-way analysis of variance, followed by the Tukey post-hoc test (p<0.05). Results The highest color change was detected on the 7th and 30th days in the G-aenial anterior microhybrid composite immersed in hot coffee (p<0.001). The application of hot and cold coffee applications did not make a statistically significant difference in the coloration of the Estelite Σ Quick composite samples at the end of the 7th (p=0.346) and 30th (p=910) days. Conclusion Hot drinks had a more coloring effect on restorations. This coloration was quite evident in the microhybrid composite.

Keywords

• Coffee
• cold coffee
• discoloration
• hot coffee
• spectrophotometer

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