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目的寻找适合国情、简单有效的治疗重症乳磨牙根尖周炎的方法,以达到保存乳牙、减少继承恒牙疾患发生的目的。方法 22例因重症根尖周炎造成根方骨质吸收并波及牙胚的乳磨牙,采用Vitapex糊剂进行根管治疗,临床长期观察至继承恒牙牙冠完全萌出建合。结果 1例短期内治疗失败,6例失访,15例萌出建合位置正常,其中1例唇侧面有少于1mm×1.5mm面积的黄斑。结论根尖周炎症造成根方骨质吸收并波及继承牙胚做为拔除乳牙的绝对指征值得商榷,结合乳牙的临床状况、继承牙胚钙化度等方面进行适当的病例选择,采用根管治疗术后对继承恒牙的发育影响轻微。
Objective To find a suitable and simple method to treat severe apical periodontitis in order to save the primary teeth and reduce the occurrence of inherited permanent teeth. Methods Twenty - two cases of primary molars with root apical bone resorption and tooth germ caused by severe periapical periodontitis were treated with Vitapex paste for root canal therapy. Long - term clinical observation was performed until the complete succession of permanent teeth crowns erected. Results One case failed treatment in a short time, six cases were lost to follow-up, and 15 cases were erected to establish normal position. One case had less than 1mm × 1.5mm macular area. Conclusions The periapical periodontitis causes the root bone absorption and spreads the inherited tooth germ as an absolute indication for the extraction of deciduous teeth. It is worth discussing with the clinical situation of deciduous teeth and the succession of the calcification degree of tooth germs. The use of root canal therapy After the succession of the development of permanent teeth minor.