牙根内吸收临床诊治方法的研究进展

Research progress on diagnosis and treatment of root resorption

牙根内吸收是牙髓处于炎症状态时破牙本质细胞导致的髓室及根管壁牙本质丧失。其发病率低,主要与外伤和感染密切相关,具体的发病机制还不够明确。牙根内吸收一般无主观症状,常通过影像学检查发现,且易与牙根外吸收混淆。一旦确诊应尽快治疗,阻止疾病继续进展,常用的治疗方法为根管治疗术。迄今国内未见牙根内吸收的综述报道。本文就牙根内吸收的病因及发病机制、分类、诊断与鉴别诊断、治疗和预后的研究进展进行总结,为牙根内吸收的临床诊治提供参考。

Internal root resorption is the loss of dentin from the root canal wall as a result of clastic activities caused by odontoclasts when the dental pulp is under inflammation.It has a low incidence and is closely related to trauma and infection.Its pathogenesis is not clear enough now.Internal root resorption is usually asymptomatic and often checked out by radiographic appearance,which is easily confused with external root resorption.However,it should be treated as soon as possible after diagnosis to prevent more dentin loss.At present,the common treatment for it is root canal therapy.So far,no review concerning internal root resorption is available.This review summarizes the progress of the etiology and pathogenesis,classification,diagnosis,differential diagnosis,treatment,and prognosis of internal root resorption to clarify the diagnosis and treatment of internal root resorption.