To evaluate the effectiveness of self-etching bond system in repair of sphenoid defects.
目的评价自酸蚀粘接修复楔状缺损的效果。
PURPOSE: To compare the efficacy of self-etching bond system and composite resin in repair of dental defects.
目的：比较自酸蚀粘接系统和复合树脂修复牙体缺损的效果。
Objective: To compare the efficacy of self-etching bond system and composite resin in pair of dental defects.
目的：比较自酸蚀和全酸蚀粘结系统对牙釉质的剪切粘结强度，为临床提供粘结术式选择的依据。
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