论文部分内容阅读
上颌磨牙腭根形态多为单根管,双根管发生率极少。作者在临床工作中遇到2例,现报告如下。某男,25岁,因左上后牙阵发痛伴夜间痛3天就诊。临床检查发现左上颌第二磨牙近中邻合深龋洞,探诊(-),冷诊(-),牙髓活力电测验无反应,叩痛(+),根尖粘膜无肿胀及窦道,诊断为急性牙髓炎。开髓、清理髓腔后探查根管,发现腭根双根管,颊舌向,两根管口相距极近,颊侧为单根管,常规
Maxillary molars palate root morphology and more for a single canal, the incidence of double root canal rarely. The author encountered two cases in clinical work, are as follows. A man, 25 years old, because of the left upper back teeth burst pain with night pain for 3 days treatment. Clinical examination found that the second upper left maxillary second molar close to the deep cavities, exploration (-), cold diagnosis (-), pulp electrical activity test no reaction, percussion pain (+), apical mucosa without swelling and sinus , Diagnosed as acute pulpitis. Open pulp, pulp cavity after probing the root canal and found palate root canal, buccal and lingual, the two nozzle is very close to the buccal side of a single canal, conventional