论文部分内容阅读
目的：研究分根术保留重度根分叉病変磨牙并采用联合冠桥或联冦、单冠行冠重建修复临床疗效。方法49颗严重根分叉病变达Ⅲ、Ⅳ度下颌磨牙，经牙周基础治疗和规范的根管治疗，分割近远中两根，然后保留双根或单根进行联合冠桥或联冠、单冠重建修复。结果1～5年跟踪随访，重建冠不松动，咀嚼功能恢复良好，有效率93.9％。结论分根术并冠重建修复，很适合于经其它方法治疗后，牙周袋仍不能消除重度根分叉病变的磨牙，是提高磨牙保存率的有效方法。“,”Objective To study the clincical effect of severe furcation involvement molars involvement molars after using root separation skil with bridge restoration , combined crown ,single crown. Methods 49 molars with garde Ⅲ or Ⅳ furcation involvement were preserved after proper endodontic and periodontic treatment. Separat the medial and distal roots , keep one or both roots and restore the teeth in bridge restoration , combined crown,single crown . Results After 1~5 years folow-up , we found firm restoration and good masticatory function , with the success rate 93.9%. Conclusion Using root separation skil to preserve severe furcation involvement molars , is an effective way to increase the preservation rate of molars and suitable for molars with severe root bifurcation and periodontal pockets after other treatments.