所谓根分叉受累即指多根牙其牙槽中隔骨区牙周纤维附着丧失的状态。过去,根分叉受累的牙齿其治疗效果一般很差,因而造成了大量根分叉受累牙齿的拔除。新近的牙周病治疗学已为治疗这类损害提供了一些方法,其疗效得以改善。但目前在我国由于对引起多根牙根分叉处受累的一些发病因素的了解尚不够深入和全面,所以往往忽视对该种损害的治疗或致治疗失败。由于对根分叉处损害的治疗需要准确地了解疾病发生和发展过程,这就要求我们尽可能多地认识根分叉受累的病因。关于根分叉受累的一些有关因素,国外学者用人类颅骨标本上的牙齿作了一些研究 The so-called root bifurcation refers to the multiple teeth of the alveolar region of the alveolar periodontal fiber attachment loss. In the past, the treatment of the teeth affected by the root bifurcation was generally poor, resulting in the removal of a large number of teeth with bifurcated involvement. Recent therapies for periodontal disease have provided some ways to treat such injuries and their efficacy has been improved. However, at present in our country due to cause a number of root bifurcation involvement of some of the risk factors is not yet deep enough and comprehensive, so it often overlooks the treatment of such damage or cause of treatment failure. Since the treatment of damage to the root bifurcation requires an accurate understanding of the occurrence and development of the disease, this requires that we understand as much as possible the cause of the root bifurcation involvement. On the root bifurcation involved in some of the factors related to foreign scholars using human skull specimens made some research