美学复合树脂分层堆塑技术修复前牙缺损临床观察

Clinical Evaluation of Multi-shade Composite Resin Restoration Technique in the Repair of Anterior Teeth Defects

目的:探讨美学复合树脂分层堆塑技术修复前牙缺损的临床疗效。方法:以2015年9月-2017年11月收治的39例前牙缺损患者的64颗患牙为研究对象,全部患者均在硅橡胶导板引导下使用3M Z350XT美学树脂分层修复前牙缺损,术后随访2年,并观察其疗效。结果:单颗患牙的平均操作时间为(78.56±9.23)min。2年随访期间,1颗患牙发生修复体内部折断,1颗患牙存在敏感症状,2颗患牙发生了充填体变色,18颗患牙修复体发生着色需要进行再次抛光。结论:复合树脂分层修复技术可以较好地模拟前牙外形及美学特征,适用于各种原因引起的前牙缺损,但其椅旁操作时间较长,远期疗效仍需观察。

Objective To investigate the clinical effect of anterior teeth defects reparation using the multi-shade composite resin restoration technique.Methods A total of 64 defective anterior teeth of 39 patients collected from September 2015 to November 2017 were included in this study.All the cases were treated with Filtek Z350XT based on the multi-shade composite resin restoration technique.Follow-up was performed for 2 years to observe its effect.Results The average operation time was(78.56±9.23)min per tooth.During the 2-year follow-up period,1 of the affected teeth had an internal fracture of the restoration,1 of the teeth had sensitive symptoms,2 of the restorations had discoloration,and 18 of the restorations had extrinsic stain and need to be re-polished.Conclusion The multi-shade composite resin restoration technique can simulate the shape and aesthetic characteristics of the defective anterior teeth caused by various reasons properly.However,the operation time of the restoration is too long and the long-term effect still needs to be observed.