Method: The colour difference was measured by MINOLDA CR-321 spectrophotometer and analyzed with 1976 L*a*b(CIE)standard colour system and L*C*h colour system.

• 方法:应用色差仪测试不同粘结剂对相同厚度的两种全瓷修复体颜色的影响,分别采用国际照明委员会(CIE)1976 L*a*b标准色度系统及L*C*H表色系统进行评价。