Wang Ping, Su Lingyun
Department of Endodontology, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi Provience, China.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Apr;107(4):e39-42. doi: 10.1016/j.tripleo.2008.12.014. Epub 2009 Feb 6.
Root fractures in nonendodontically treated teeth have been reported to occur primarily in Chinese. Two representative cases of vertical root fractures in nonendodontically treated teeth are presented. In the first case, there were vertical fractures in both mesial and distal roots of the mandibular right first molar. In the second case, there were vertical fractures in the mesial roots of both the mandibular left and right first molars. Their radiographic features were obtained. Both had clinically intact crowns with no or minimal restorations and periodontal defects. Diagnosis could be obtained with the use of radiographic examination.
据报道，未经牙髓治疗的牙齿发生根折主要见于中国人。本文展示了两例未经牙髓治疗的牙齿垂直根折的典型病例。第一例中，下颌右第一磨牙的近中根和远中根均发生垂直骨折。第二例中，下颌左、右第一磨牙的近中根均发生垂直骨折。获取了它们的影像学特征。两例患牙临床牙冠均完整，无修复体或仅有少量修复体，且存在牙周缺损。通过影像学检查可作出诊断。
