成品桩树脂核技术在后牙残冠修复中的应用

The prefabricated post and composite resin core technique used in restoring residual crown of posterior tooth

目的:探讨采用钛合金成品桩结合树脂核技术修复后牙残冠的临床效果。方法:选择经过完善根管治疗的21例患者、26颗残冠进行根管预备,采用现代黏结技术将成品钛合金桩和流动树脂核材料粘固在一起,进行冠修复。结果:经过10年临床观察,21例患者中仅有4例患者的4颗牙修复失败,修复成功率达85%。X线片显示,经桩核冠修复后的残冠,其根尖周牙槽骨的硬骨板密度增强。结论:规范的根管治疗和有效的桩核加强可以恢复残冠的功能,有效保留患牙。

PURPOSE： To investigate the clinical effect of repairing posterior residual crown using titanium alloy post combined with composite resin core technique. METHODS： Twenty-one patients （26 residual crown） with perfect root canal therapy were selected. Modern bonding technique was used to build up the core with titanium alloy post and flow composite resin together for crown restoration. RESULTS： After ten years of clinical observation, only 4 cases among the 21 patients failed in restoration. The rate of success was 85%. X-ray showed that the periapical alveolar bone density was enhanced after restoration. CONCLUSIONS： Standard root canal therapy and effective post-core strengthening can restore the function of the residual crown and retain the tooth.