【摘要】 楔状缺损无论在洞型制备和充填体固位方面均存在一定的难度。为选择较理想的修复楔状缺损的材料和方法，本文分别用自凝玻璃离子水门汀、光固化玻璃离子水门汀、光固化复合树脂和自凝玻璃离子水门汀加光固化复合树脂，这３种材料４种修复方法进行了临床对比观察。６个月后复查结果，４种修复方法在磨耗、折断、脱落的失败串统计学卡方检验均无显著差异。一年后复查，修复体在磨耗方面的失败率存在显著差异，在折断和脱落方面无显著差异。结果表明，光固化树脂修复楔状缺损明显优于玻璃离子水门汀。更多还原

【Abstract】 There appeared difficulties in either cavity preparation of restoration retention when wedge-shaped ditch was restored. In order to choose an ideal material and method restored wedge-shaped ditch, we used three kinds of restorative materials (glass ionomer, light curing glass ionomer, light curing composite resin) and four restorative methods (glass ionomer, light curing glass ionomer, light curing composite resin, glass ionomer mixed with light curing composite resin). carried on clinical observation. According to the results of six months follow-up, four methods have no significant differences in abrasion, fracture,shedding and failing incidence (including of abrasion, fracture, and shedding) through statistical test(chi-square test). According to the results of one year follow-up, there were significant differences in abrasion and failing incidence,but fracture and shedding have no significant differences. Results showed that light curing composite resin was better than glass ionomer in wedge-shaped ditch restoration.更多还原