后牙超瓷聚体嵌体3年临床疗效观察

A three-year clinical evaluation of ceramic optimized polymer posterior inlays

目的:观察后牙超瓷聚体嵌体的临床疗效。方法:前磨牙及磨牙Ⅰ类洞患者345例,随机分为2组:超瓷聚体嵌体组170例(前磨牙42颗,磨牙128颗),复合树脂嵌体组175例(前磨牙45颗,磨牙130颗)作为对照。随访3年后,从边缘着色、边缘密合度、解剖形态、基牙继发龋、修复体折裂、颜色匹配等方面进行比较,采用χ2检验进行统计学处理。结果:超瓷聚体嵌体组获得随访166例、复合树脂嵌体组获得随访169例,超瓷聚体嵌体组边缘着色2例、边缘密合158例、外形完整162例、基牙继发龋1例、修复体折裂5例、颜色匹配161例;复合树脂嵌体组边缘着色27例、边缘密合134例、外形完整150例、基牙继发龋20例、修复体折裂5例、颜色匹配146例。超瓷聚体嵌体组在边缘着色、边缘密合度、外形完整、基牙继发龋、颜色匹配等方面优于复合树脂嵌体(P<0.05),但在修复体折裂方面无显著差异(P>0.05)。结论:超瓷聚体嵌体是一种较好的新型牙体修复体。

PURPOSE： To evaluate the clinical results of ceramic optimized polymer （Targis） posterior inlays. METHODS：345 type Ⅰ cavities were divided into two groups： 170 in Targis inlays group （42 premolars and 128 molars） and 175 in control group（ composite resin inlays, 45 premolars and 130 molars）. The clinical effects of Targis inlays and composite resin inlays in posterior teeth were compared in marginal discoloration, marginal adaption, secondary caries, anatomic shape integrity, fractures of tooth and color match 3 years later. The data were analyzed using Chi-square test. RESULTS： 3 years after treatment, 166 Targis inlays were followed up, 2 had marginal discoloration, 158 had good marginal adaption, 162 had anatomic shape integrity, 1 had secondary caries, 161 had color match, and 5 had fractures of teeth. 169 composite resin inlays were followed up, 27 had marginal discoloration, 134 had good marginal adaption, 150 had anatomic shape integrity, 20 had secondary caries, 164 had color match,5 had fractures of teeth. The marginal discoloration, marginal adaption, secondary caries, anatomic shape integrity of Targis inlays were better than that of composite resin inlays （P〈0.05）, but fractures of teeth was not different between inlays in the two group （P〉0.05）. CONCLUSION： Targis posterior inlays is a good newly developed prosthesis.