对３８例复合树脂修复体磨损、碎裂后，在存留于牙上的被唾液等污染的修复体部分基底上，用光固化复合树脂粘接技术进行再粘接修复，临床观察５～２４个月。结果３８例中有３例粘接修复后新旧材料界面分离。在污染的基底层树脂表面进行适当处理并应用偶联剂可有效地提高填加层光固化复合树脂与污染的基底层光固化复合树脂、化学固化复合树脂、塑料的粘接强度，短期临床效果比较好。 Thirty-eight composite prostheses were abraded and shattered, and then re-adhered to the prosthetic parts contaminated with saliva, etc., remaining on the tooth base. Five to twenty-four month. Results Among the 38 cases, 3 cases were separated from old and new materials after bonding and repairing. Appropriate treatment on the contaminated base layer resin surface and the application of coupling agent can effectively improve the adhesion strength between the light-curing composite resin layer and the contaminated base layer light-curing composite resin, the chemical curing composite resin and the plastic, and the short-term clinical effect Better.