Obiective to study the application of root apex locator to diagnose vertical root fracture.
目的研究应用根尖定位仪诊断牙根纵裂。
To explore clinical features of vertical root fracture (VRF) and analyze the possible causes of VRF.
目的观察研究牙根纵裂的临床特征，分析其发病原因。
Methods: 47 cases were analyzed by respective study to analysis the cauese , clinical characters . diagnosis and prevention methods of vertical root fracture.
方法：通过观察4 7例冠根纵折的病例，对牙位、牙髓状态、牙髓治疗情况进行回顾性分析。
应用推荐