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目的观察分根术后采用单冠或联冠、联合冠桥修复治疗下颌磨牙重度根分叉病变的临床疗效。方法 将53颗Ⅲ、Ⅳ度根分叉病变的下颌磨牙,经完善的根管治疗、牙周基础治疗后,将近远中根分离,然后保留单根或双根实行单冠或联冠、联合冠桥修复。结果经1~5年随访咀嚼功能良好,修复体稳固。有效率94.3%。结论分根术后保留重度根分叉病变磨牙并固定修复的治疗方法,适用于经牙周治疗后,牙周袋仍不能消除的重度根分叉病变的磨牙,是提高磨牙保存率的有效方法之一,可以延长磨牙的寿命,恢复一定的咀嚼功能。
Objective To observe the clinical effect of single root or double crown combined with crown-crown restoration in the treatment of severe root bifurcation lesions of mandibular molar. Methods 53 mandibular molars with Ⅲ, Ⅳ degrees of root bifurcation lesions were treated with complete root canal treatment. After periodontal basic treatment, the proximal and distal roots were separated and single or double root was preserved. The combined crown Bridge repair. Results After 1 to 5 years follow-up chewing function well, the restoration of solid. Efficiency 94.3%. Conclusion It is an effective method to improve the preservation rate of molars when the residual roots of severe root bifurcation lesions are preserved after root-radical operation and the treatment of fixed restoration is suitable for molars with severe root bifurcation lesions that can not be eliminated after periodontal treatment One, you can extend the life of molars, restore some chewing function.