821例牙源性肿瘤及相关病变统计分析

ODONTOGENIC TUMORS AND ALIED LESIONS:A SERIES OF 821 CASES

按世界卫生组织（ＷＨＯ）１９９２年新分类标准对８２１例牙源性肿瘤重新诊断归类，统计分析不同类型的构成比例、年龄、性别及部位分布。结果显示最常见的牙源性肿瘤是造釉细胞瘤（５３．８％），与北美地区报道牙瘤（５１．４～６７．０％）常见结果不一致。男性患者略多于女性（１．３：１），高发年龄为１０～３９岁（６９．ｏ％）。下颌骨多于上颌骨（３．１：１），且以下颌磨牙区和下颌角区最常见（４３．２％），其中造釉细胞瘤下颌骨与上颌骨之比为１２．７：１，远高于北美地区的报道（２．５：１）。

21 cases of odontogenic tumors in the Chinese population were reconfirmed according to the WHO(1992)classification,The relative frequencies of various histologic types, and their sex, age and location distributions were analyzed. The results indicated that the most frequent histologic type was amelobastoma(53.8%)followed by myxoma(7.8%),adenomatoid odontogenic tumor(7.7%),and odontoma(6.2%).Male patients were more than female(1.3:1).The highest incidence occurred in the second; third and fourth decades,Tumors in mandible were more common than in maxilla(Man:Max=3.1: 1) and 43.2& cases located in the molar and post-molar ares of mandible.Of 442 cases of ameloflastomas,The ratio of location in mandible and in maxilla wete 12.7:1.A detail table and three figues,which show somewhat difference from the results of literature is also presented.This study gives a very important data of odotogenic tumors in Chinesc population.