Watanabe Dental Clinic, 1870-6 Kusabuka Numakuma Town, Fukuyama City, Hiroshima Prefecture, Japan.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2012 Sep;114(3):365-72. doi: 10.1016/j.oooo.2012.01.003. Epub 2012 Mar 5.
A cemental tear is a pathologic condition in which a complete or incomplete separation of the cementum occurs along the root surface and is usually accompanied by a deep periodontal pocket. Past articles report that the incidence of cemental tears has usually been limited to 1 tooth per individual. We encountered a clinical case with cemental tears involving 14 teeth in 1 individual. Multiple cemental tears in 1 individual have not been previously described in the dental literature. We present the clinical and pathologic features of this rare case and suggest that the probable cause of multiple cemental tears is structural weakness of the cementum.
牙骨质撕裂是一种病理状况，其中沿着牙根表面发生完全或不完全的牙骨质分离，通常伴有深牙周袋。过去的文章报道，牙骨质撕裂的发生率通常限于每个个体 1 颗牙齿。我们遇到了 1 例涉及 1 个体内 14 颗牙齿的牙骨质撕裂病例。在牙科文献中，以前没有描述过 1 个体内有多个牙骨质撕裂的情况。我们介绍了这一罕见病例的临床和病理特征，并提出多个牙骨质撕裂的可能原因是牙骨质的结构薄弱。
