CEREC全瓷高嵌体修复根管治疗后牙体缺损的临床效果评价

Clinical effect evaluation of CEREC chair side all-ceramic onlays restoring posterior tooth detection after root canal therapy

目的:采用CEREC MCX系统制作全瓷高嵌体修复根管治疗后的后牙牙体缺损,观察其短期疗效。方法:选取26例根管治疗后的后牙,使用CEREC MCX系统,IPS e.max CAD材料,制作全瓷高嵌体,双固化树脂水门汀粘结。修复后3个月,采用改良USPHS标准对修复体各方面指标进行评价,并检查食物嵌塞情况。结果:84.6%的修复体各项检查标准都达到了USPHS标准A类。92.3%的修复体未出现食物嵌塞。CEREC全瓷高嵌体短期疗效确切。结论:使用CEREC MCX系统制作的IPS e.max CAD全瓷高嵌体可作为根管治疗后后牙牙体缺损的有效修复方案。

Objective： To restore posterior tooth detection after root canal therapy with all-ceramic onlays made by CEREC MCX system and evaluate short-term clinical qualities. Method： 26 posterior teeth after root canal therapy were selected. Onlays were designed and milled by using CEREC MCX system and IPS e.max CAD, and cemented with dual-curing luting composite. All restorations were recalled and assessed after 3 month under the modified USPHS criteria. Conditions of food impaction were examined. Result： 84.6 % of the restorations were up to the standard for class A and 92.3 % of the restorations did not have any food impaction. All-ceramic onlays have good clinical qualities in short-term observations. Conclusion： The IPS e.max CAD onlays fabricated with CEREC MCX chair side system is an effective way to restore posterior tooth detection after root canal therapy.