Journal of clinical and experimental dentistry · 2026
Assessment of Color Stability and Translucency of Five High-Translucent Resin Composites.
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Tozo-Burgos José Giancarlo, Sánchez-Tito Marco
Аннотация
BACKGROUND: To evaluate and compare the color stability and translucency of high-translucent resin composites after exposure to distilled water and coffee.
MATERIALS AND METHODS: Standardized disc-shaped specimens of five commercially available translucent resin composites (n = 60; 12 specimens per group) were fabricated and evaluated at three time points: baseline (T0), after 30 days in distilled water (T1), and after an additional 30 days in coffee (T2). Color was measured using a spectrophotometer and expressed as E00, while translucency was assessed using the translucency parameter (TP). Data were analyzed using non-parametric tests. The level of significance was set at 5%.
RESULTS: All materials showed a significant increase in color change after coffee exposure (p < 0.05). Beautifil II exhibited the highest discoloration at T2-T0 (17.76 [2.18]), followed by Forma Trans (14.93 [3.70]), whereas Opallis T Neutral showed the lowest values (8.31 [2.84]). At T1-T0, Opallis T Neutral also presented the lowest color change (1.42 [0.67]). Regarding translucency, Filtek Z350 XT Trans showed the highest TP values at T2 (15.38 [2.74]), while several materials, particularly Beautifil II (-4.08 [4.35]) and PALFIQUE LX5 (-4.60 [2.96]), exhibited reductions in TP after coffee immersion. Opallis T Neutral showed minimal variation in translucency (-0.19 [1.19]).
CONCLUSIONS: High-translucent resin composites showed significant differences in optical stability. Coffee exposure increased discoloration and reduced translucency in most materials. Opallis T Neutral demonstrated the best overall performance.
MATERIALS AND METHODS: Standardized disc-shaped specimens of five commercially available translucent resin composites (n = 60; 12 specimens per group) were fabricated and evaluated at three time points: baseline (T0), after 30 days in distilled water (T1), and after an additional 30 days in coffee (T2). Color was measured using a spectrophotometer and expressed as E00, while translucency was assessed using the translucency parameter (TP). Data were analyzed using non-parametric tests. The level of significance was set at 5%.
RESULTS: All materials showed a significant increase in color change after coffee exposure (p < 0.05). Beautifil II exhibited the highest discoloration at T2-T0 (17.76 [2.18]), followed by Forma Trans (14.93 [3.70]), whereas Opallis T Neutral showed the lowest values (8.31 [2.84]). At T1-T0, Opallis T Neutral also presented the lowest color change (1.42 [0.67]). Regarding translucency, Filtek Z350 XT Trans showed the highest TP values at T2 (15.38 [2.74]), while several materials, particularly Beautifil II (-4.08 [4.35]) and PALFIQUE LX5 (-4.60 [2.96]), exhibited reductions in TP after coffee immersion. Opallis T Neutral showed minimal variation in translucency (-0.19 [1.19]).
CONCLUSIONS: High-translucent resin composites showed significant differences in optical stability. Coffee exposure increased discoloration and reduced translucency in most materials. Opallis T Neutral demonstrated the best overall performance.