后牙复合树脂磨耗的临床评价

为探索评价复合树脂磨耗的最佳方法，本研究采用直接临床评价法和间接模型比较法，对以４种复合树脂修复的９３例磨牙面洞修复体进行了３年的评估。结果表明，直接法对修复体早期磨耗的评估不敏感，但对修复体其它方面的评价目前仍为首选；间接法评估修复体的磨耗更准确、敏感，量化的磨耗值便于统计学分析；直接法与间接法相结合可更客观，更全面地评价复合树脂修复体的临床效果。

Clinical evaluation for wear of composite resin in filling of molars

To study the best evaluation method for wear of composite resins, 93 occlusal cavities of molars were restored with four kinds of light-cured composite resins, and three-year clinical research of wear analyses was performed using either direct evaluation method (USPHS) or indirect cast comparison (Leinfelder) method. The results suggested that the direct evaluation method for early wear of restorations would be less sensitive, but it remains the preferred system for the evaluation otherwise; the indirect method would be more reliable and sensitive, and numerical estimates of wear are more readily suitable for statistical analysis. The combination of direct and indirect methods will evaluate composite resin wear objectively and comprehensively.