摘要:临床中对于牙髓病、根尖周病的治疗,主要是根管治疗。文献[1]报道这种治疗方法失败率达15%~32%。Naito[2]研究结果证明,非手术性根管再治疗由于其良好的预后,可以在根管治疗失败后作为首选方案。一般认为下颌第一前磨牙大部分为单根管,但最近研究表明其根管形态多变,临床中再治疗的概率较高。
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