流动复合树脂衬洞在楔状缺损修复中的疗效评价

Clinical evaluation of flowable composites in treatment of wedge-shaped defects as a liner

目的:评价流动复合树脂作为洞衬材料在楔状缺损修复中的价值。方法:选择85例患者的360颗楔状缺损患牙为研究对象,采用自身对照设计,随机选择每例患者一侧患牙为实验组,采用流动树脂衬洞后再以复合树脂充填;对侧同名牙为对照组,直接采用复合树脂充填。以改良的USPHS/Ryge临床修复体质量评估系统评价修复后1年和3年的疗效。应用SPSS12.0软件包对数据进行统计学处理。结果:实验组在边缘完整性和术后敏感方面优于对照组,有显著性差异。在边缘完整性方面,1年复查时实验组满意率为100%,高于对照组的95.65%(P<0.01);3年复查时实验组满意率为98.56%,高于对照组的92.42%(P<0.01),均有统计学差异。术后1年复查时,实验组未出现敏感病例,而对照组6颗患牙出现中度敏感,需要更换修复体。实验组优于对照组,差异有统计学意义(P<0.05)。结论:流动复合树脂洞衬用于楔状缺损修复可提高边缘完整性和降低术后敏感发生率。

PURPOSE： To evaluate the clinical effects of flowable composite as a liner in treatment of wedge-shaped defects.METHODS： Three hundred and sixty teeth from 85 patients with wedge-shaped defects were studied.The self-control design was used in this study.Teeth were randomly divided into experimental group which were restored with composite resin after using flowable composite as a liner in one side,and the control group which were filled with composite resin directly in the other side.The modified USPHS / Ryge criteria were used to evaluate the treatment effects after 1 year and 3 years.SPSS12.0 software package was used for statistical analysis.RESULTS： There was significant difference between the 2 groups in postoperative sensitivity.The experimental group had higher successful rate than the control group.In marginal integrity,the successful rate of the experimental group was 100% after 1 year,higher than 95.65% in the control group（P〈0.01）.The successful rate of the experimental group was 98.56% after 3 year,higher than 92.42% in the control group（P〈0.01）.In postoperative sensitivity： the experimental group had no sensitive cases after 1 year,while the control group had 6 teeth with moderate sensitivity which needed to change the restoration.The experimental group was better than the control group,the difference was statistically significant（P〈0.05）.CONCLUSION： It can be concluded that flowable composites as a liner in restoration of wedge-shaped defects may improve the marginal integrity and reduce the postoperative sensitivity.