纤维桩和铸造桩修复后牙残冠残根的临床疗效比较

The efficacy of fiber post versus that of cast post and core in restoration of residual crown and root of molars

目的探讨纤维桩和铸造桩修复后牙残冠残根的临床疗效。方法选择有保留价值的前圩残冠残根230颗，纤维桩组165颗患牙，铸造桩组165颗患牙，完善的根管治疗后，采用桩核系统恢复基牙外形，行全冠修复，追踪观察2年。结果追踪观察2年后，铸造桩核组出现4例修复体脱落，10例根折，5例牙体变色，成功率为88．5％；纤维桩核组成功率达100％。结论纤维桩可以降低根折和牙龈变色发生机率。

Objective To explore the efficacy of fiber post and cast post and core in restoration of residual crown and root. Methods Two hundred and thirty front teeth with residual crown and root were divided into group with fiber post （ 165 teeth ）and group with cast post and core （ 165 teeth ）. After the root canal was lreated, the appearance of abutment tooth was restored using the post-core system, and then the entire crown was reeonstructed. All the patients were followed up for 2 years. Results In the group with cast post and core, 4 cores shed from the root, 10 roots fractured, and gingival discolor occurred in 4 patienls, with a success rate of 88.5%. While the group with fiber post had a success rate of 100%. Conclusions Fiber post can lower the incidence of foot fracture and gingival discolor. It is a real prosthesis material for residual crown and root.