Effect of staining beverages on color and translucency of CAD/CAM composites

摘要

This study investigated the color (E) and translucency changes (TP) of CAD/CAM composites after exposure to staining solutions using both spectrophotometer and shade-matching device. Direct (Filtek Z350XT [ZT]), indirect (Shofu Ceramage [CE]) and CAD/CAM (Shofu HC Block [HC], Lava Ultimate [LU], Vita Enamic [EN]) composite specimens measuring 12 x 14 x 1.5 mm were fabricated, divided into five groups (n = 8), and immersed in cola, tea, coffee, red wine, distilled water (control) at 37 degrees C for 7days. Color parameters were determined with both spectrophotometer and shade-taking device at baseline and 1week. Delta E (Delta E) with white and black backgrounds, and Delta TP (Delta TP) were computed. Statistical testing was performed with ANOVA and Tukey post hoc test (P .05). Mean Delta E (white) values ranged from 0.20 +/- 0.06 to 12.26 +/- 1.95 while mean Delta E (black) varied from 0.22 +/- 0.11 to 14.21 +/- 2.37. Mean Delta TP values ranged from 0.13 +/- 0.17 to -3.87 +/- 2.16. CAD/CAM composites fared better in red wine than direct and indirect materials. Clinically perceptible color changes (Delta E 3.3) were observed for almost all materials when exposed to wine, coffee and tea. Direct, indirect, and CAD/CAM composites are all susceptible to various degrees of discoloration and translucency changes after exposure to staining beverages. Red wine caused the most discoloration and translucency changes. Limitations of these materials must be considered when placing an aesthetic restoration.