聚合瓷高嵌体与全瓷冠在短冠后牙修复中的疗效比较

目的 对比观察聚合瓷高嵌体与全瓷冠在短冠后牙修复中的临床疗效.方法 对根管治疗后的短冠后牙完成45例聚合瓷高嵌体修复及45例二氧化锆全瓷冠修复,从修复体美观、修复体折裂及脱落、边缘密合度、基牙保存情况等方面进行临床比较.结果 在12个月的观察期内,聚合瓷高嵌体在修复后6个月有1例出现修复体脱落,而全瓷冠修复体则在6~12月后陆续发现8例修复体脱落,两者在修复体折裂及脱落方面的比较有统计学差异(x2=4.44,P<0.05).结论 聚合瓷高嵌体在短冠后牙修复中有较好的临床效果.

Comparison of the effects of polymer ceramic onlay and all ceramic crown in short crown molar

Objective To compare the clinical effects of polymer ceramic onlay and all ceramic crown in short crown molars. Methods 45 cases of polymer ceramic onlay and 45 cases of Zirconium dioxide all ceramic crowns which repaired the short crowm molars after root canal therapy were compared clinically from the aspects of beauty of restoration, fracture and dislodgement, marginal adaptation and the preservation of abutment teeth. Results One poly-mer ceramic onlay had fall out form the teeth after half year, while the all ceramic crowns have been 8 cases after 6~12 months. There were significant differences in fracture and dislodgement between the two groups (x2=4.44, P<0.05). Conclusion Polymer ceramic onlay has good clinical effects in the restoration of short crown molars.