应用龈色树脂修复前牙颈部缺损的临床评价

Clinical evaluation of gingival composite resin restoring cervical defects in anterior teeth

目的:评价采用龈色树脂修复前牙颈部缺损的临床效果。方法:选择北京大学口腔医院第一门诊部2007年6月至2008年10月前牙唇侧颈部缺损患者80例,先单纯使用牙色树脂模拟充填,然后用龈色树脂配合牙色树脂按照前牙美学标准模拟充填。采用视觉模拟评分法,由患者从整体印象、龈位置和牙齿轮廓3个方面对两种充填方法的美学效果满意度分别进行评价。用龈色树脂配合牙色树脂充填缺损,在术后1周、6个月、1年、2年,根据改良的美国公共卫生署标准对充填体进行纵向临床评价。结果:(1)患者对两种充填方法的美学效果满意度评价结果:配合使用牙龈色树脂修复法和单纯牙色树脂修复法的患者满意度在整体印象、龈位置和牙齿轮廓方面的差异均有统计学意义(P<0.1),配合使用龈色树脂充填法可获得更理想的美学效果。(2)纵向临床评价结果:术后1周、6个月、1年、2年,龈色树脂充填体在色彩匹配性、修复体表面形态、边缘密合性、边缘着色、继发龋及术后敏感性等方面差异均无统计学意义(P>0.1)。结论:龈色树脂用于前牙颈部缺损的美学修复不但能满足牙体缺损的治疗要求,还能达到良好的美学效果,该技术值得临床推广。

Objective： To evaluate the clinical effects of gingival composite resin used for restoring cervical defects in anterior teeth.Methods： Eighty cervical defects of anterior teeth were involved.Firstly,they were restored with simulated restorations using only tooth colored composite resin.Then,the simulated restorations were removed and the defects were restored with simulated restorations using gingival composite resin combined with tooth colored composite resin.Visual analogue scale（VAS） was employed to survey the patient satisfaction with the esthetic results of the two methods.The defects were filled with gingival composite resin and tooth colored composite resin.Then,longitudinal clinical evaluation were made at 1-week,6-month,1-year and 2-year recalls respectively using modified United States Public Health Service（USPHS） criteria.Results： Simulated restorations made of gingival composite resin and tooth colored composite resin obtained more satisfaction in overall impression,gingival position and tooth contour than simulated restorations simply made of tooth colored composite resin（P0.1）.In the longitudinal clinical evaluation,no significant differences among the recalls were found in color match,restoration morphology,marginal adaptation,marginal discoloration,secondary caries or pulp sensitivity（P0.1）.Conclusion： Using gingival composite resin in restoring cervical defects in anterior teeth achieved not only satisfactory treatment effect but also ideal esthetic results.