论文部分内容阅读
牙根折裂指发生于牙根的从根管延伸到牙周膜的折裂,是一种非龋性疾病,其原因有外伤性、医源性及病理性。牙根折多见于30岁以上的人,尤其是41～60岁更为常见[1]。发生的部位多在磨牙,以第一磨牙发病率最高,且多发生在近中根或近中颊根,也可以发生在双尖牙。磨牙根折不同于前牙根折,在临床上往往难以发现,主要由于磨牙根折部位隐蔽,临床表现往往不典型,给早期诊断及治疗带来一定的困难,尤其是部分根折或非横断性根折更
Tooth root fracture refers to the root canal from the root canal to the periodontal ligament fracture, is a non-carious disease, its causes are traumatic, iatrogenic and pathological. More root fracture in people over the age of 30, especially 41 to 60 years of age is more common [1]. Occurred mostly in molars, the highest incidence of the first molar, and more occurred in the near or near the mesiobuccal root, can also occur in the bicuspid. Molar tooth root fracture is different from the anterior root fracture, often clinically difficult to find, mainly due to hidden parts of the root canal of the molar, the clinical manifestations are often not typical, to the early diagnosis and treatment of certain difficulties, especially some of the root fracture or non-transverse root Fold more