铸造桩核烤瓷联冠修复已分离下颌磨牙残根42例  

Cast post-core and porcelain-fused-metal combined crowns restore separated mandibular molar residual crowns and roots in 42 cases

作　　者：刘卫锋 闫慧鑫 刘继华 

机构地区：[1]延安市中医医院口腔科,陕西省延安市716000

出　　处：《中国组织工程研究》2015年第47期7644-7648,共5页Chinese Journal of Tissue Engineering Research

摘　　要：背景:大量研究表明,铸造金属桩核具有根管壁密合、强度高、根外段核形状可根据需要塑型等优点,具有较好的固位性、抗力性,临床修复缺损牙齿效果良好。目的:观察钴铬合金铸造桩核烤瓷联冠修复已分离下颌磨牙残根残冠的临床效果。方法:纳入已分离下颌磨牙残根残冠患者28例,共42颗患牙,其中男10例,女18例,年龄18-32岁,经完善的根管治疗、部分行牙冠延长后,行钴铬合金铸造桩核烤瓷联冠修复,随访2年,结合临床表现及X射线片检查评价修复效果。结果与结论:随访2年,修复成功26例,失败2例,其中1例为根尖有炎症,另外1例为牙周炎症,表明铸造桩核烤瓷联冠修复已分离下颌磨牙残根残冠具有良好的临床效果。BACKGROUND：A large number of studies have shown that cast metal post-core has many advantages that it is close to the canal wal has high strength and can shape the core outside the root according to the needs. The cast metal post-core also has good retention, resistance and wel effect on clinical repair of dental defects. OBJECTIVE： To observe the clinical effect of Co-Cr aloy cast post-core and porcelain fused metal combined crowns in restoration of the separated mandibular molar residual crowns and roots. METHODS：Totaly 28 patients （42 teeth） who had the separated mandibular molar residual crowns and roots were enroled, including 10 males and 18 females, aged 18-32 years. After perfect root canal therapy and part of teeth with crown lengthening, teeth were repaired with Co-Cr aloy cast post-core and porcelain fused metal combined crowns. The patients were folowed up for 2 years. The repair effect was evaluated by combining clinical manifestations with X-ray examination. RESULTS AND CONCLUSION： During 2 years of folow-up, 26 cases were repaired successfuly, 2 cases failed, including 1 case of periapical periodontitis and 1 case of periodontitis. These results demonstrate that the cast post-core and porcelain-fused-metal combined crown has a good result on the residual root and crown of the separated mandibular molar.

关 键 词：生物材料 口腔生物材料 铸造桩核 分离残根残冠 保存修复 牙龈切除 冠延长 生物学宽度 

分 类 号：R318[医药卫生—生物医学工程]