Matusow R J
Henry M. Goldman School of Graduate Dentistry, Department of Endodontics, Boston University, MA.
J Am Dent Assoc. 1988 May;116(6):658-60. doi: 10.14219/jada.archive.1988.0017.
Vertical root fractures involving apparently successful endodontic treatment with gutta-percha may be caused by hairline root fractures that existed before root canal therapy was performed. A root stripping technique was used to restore a strategically located tooth in a 70-year-old patient. Bruxism with occlusal trauma is proposed as a significant cause of hairline vertical root fractures. The commonly held view that these fractures arise from root canal condensation techniques appears more circumstantial than factual.
垂直根折可能发生在看似成功进行了牙胶根管治疗的病例中，其原因可能是根管治疗前就已存在的细微根折。采用了一种牙根剥离技术来修复一位70岁患者的一颗关键位置的牙齿。磨牙症伴咬合创伤被认为是细微垂直根折的一个重要原因。关于这些根折源于根管充填技术的普遍观点，相比事实而言似乎更多是基于推测。
