小瓷贴面在上前牙切角缺损修复中的应用

Clinical report of the treatment of minimally prepared porcelain veneer for incisal angle defect of anterior upper teeth

目的:采用小瓷贴面修复上前牙切角的小面积牙体缺损,对其治疗效果进行评估。方法:上切牙切角小面积牙体缺损患者9例,涉及患牙9颗,其中上中切牙8颗,上侧切牙1颗,根据个体牙体缺损的大小进行牙体预备,要求牙体预备的范围达缺损区域以外约2mm,常规制作IPS-EmpressII小瓷贴面,常规粘结。修复治疗完成后进行了12-24个月的临床追踪观察,检查基牙与贴面边缘密合度、边缘着色、修复体颜色、解剖形态、有无修复体周围龋及修复体有无折裂。结果:在12-24个月的观察期中,全部修复体各项检查指标都未发现异常,修复效果良好。结论:在严格选择适应证的前提下,小瓷贴面可以做为上切牙小面积切角缺损的有效治疗方法。

Objective： To restore the incisal angle defect of anterior upper teeth with mini-prepared porcelain veneer, and evaluate the clinical performance of the restoration. Methods： 9 anterior upper teeth with small incisal angle defect of 9 patients were involved in this study. After tooth reduction of 2mm wider than the defect of every teeth, 9 minimally prepared IPS-Empress Ⅱ veneers were made and luted with Variolink Ⅱ adhesive system. During the observation period of 12-24 months after placement, prosthodontic results were evaluated, using the CDA quality evaluation system, including margin integrity, anatomic form, surface and color of the veneers. Results： During the period of 12-24 months observation, all of the 9 restorations were rated satisfactory. Conclusions： With strict control of indications, the mini-prepared porcelain veneer could function satisfactorily as an alternative restoration for small incisal defect of anterior upper teeth.