两种桩核修复上颌前牙残根残冠临床比较.doc

两种桩核修复上颌前牙残根残冠临床比较[摘要]目的：通过临床随访对比金属桩和玻璃纤维桩对上颌前牙残根、残冠的临床治疗效果。方法：患者170例（195颗）上颌残根、残冠，先行完善根管治疗，若有牙龈覆盖,再行牙龈切除术。根据桩核材料的不同将研究分为玻璃纤维桩树脂核（120颗）和金属铸造桩核组（75颗）两组，修复结束后分别在第1、3、6、12、18、24个月复诊，通过临床肉眼观察和X线片检查，记录有无桩冠松脱、桩折断、牙根折断。结果：经纤维桩修复的前牙修复体固位和稳定良好，未发现折裂和松动，烤瓷冠边缘密合，牙龈无色素沉着，牙周情况良好，根尖周无病变。然而经金属桩修复后的前牙修复体在随访过程中有4颗牙齿发生根折，2例桩核松动脱落，9颗牙齿牙龈边缘出现色素沉着，其余修复效果良好。结论：玻璃纤维桩树脂核不易折断和松动，造成根折的发生率明显低于铸造桩核，且美学效果好，患者满意度高，是金属桩核良好的替代品。 [关键词]纤维桩；金属桩；口腔修复 [中图分类号]R783 [文献标识码]A [文章编号]1008-6455（2012）05-0835-02 Clinical comparison of two kinds of post and core repair residual crown and root in the maxillary anterior teeth YANG Lan,ZHOU Li （Department of Prosthodontics,Stomatological Hospital of Zunyi Medical College,Zunyi 563000,Guizhou,China） Abstract: Objective To evaluate the effects of metal stakes and glass fiber post on the maxillary anterior residual root and crown residual crown and root. Methods All the patients with residual crown and root had been accepted consummate root canal therapy before the post and core crown restoration.195 cases were divided into two groups according to the different treatment.120 teeth were glass fiber post and the remaining 75 teeth were metal cast post.Postoperative follow-up at the 1st,3rd,6th,12th,18th,24th months, with the clinical visual observation and X-ray examination, the researchers recorded whether the post crown loose or broken. Results Through the regular clinical observation,all the integrity of porcelain crown’s restoration with glass fiber post shows no fracture and loose, the gingival pigmentation and periodontal also showed the perfect performance. On the other hand, among the metal post restoration,4 cases appeared root fracture,2 cases appeared the post and core fall off and 9 cases had the gums pigmentatio around the edge of the teeth. Conclusion Compared with the metal post crown, the glass fiber post shows the perfect retention and stability.The latter was not easy to break and loose,and the root fracture rate was quite lower than