牙源性角化囊肿临床分析

目的 分析牙源性角化囊肿的临床特征。方法分析14例角化囊肿的临床、X线和组织病理学特点。结果9例（64．3％）下领骨磨牙升支，10例（71．4％）沿长轴生长，10例（71．4％）牙根斜面状吸收；7例（50％）单房，5例（35．7％）多房，2例（14．3％）多发。14例中5例复发一次，5年内复发者3例，复发时年龄在16-30岁间；1例复发二次（7年）。复发性囊肿均为单房、典型不全角化型。结论牙源性角化囊肿下领骨磨牙升支为好发区，特征性牙根料面状吸收和沿长轴生长，存在着不同的生长特性，单房不全角化型易复发。

Study on clinical features of odontogeni ckeratocyst

Objective To investigate the clinical features of odontogenic keratocyst(OKC).Methods 14 cases of OKC were analyzed on the aspects of clinical,radiographic and histological features.Results 9 cases(64.3%)were in the molar-ramus region of mandibula.The type of growth of 10 cases(71.4%)was along the long axis of the mandibula.10 cases(71.4%)were resorption of bevel of roots.7 cases were monoloeular type,5 cases were multiloeular typ,1 cases were multipletype.Resorption of 5 of 14 cases were first recurrence in which 3 cases recurred within 5 years.The ages of first recurrent cases were in 16～30.1 of 14 cases was twice recurrence within 7 years.Conclusion The most commom sites are in the molar-ramus region of mandibula.Resorption of bevel of roots and growth along the long axis of the mandibula are charaeteristics of OKC in the mandible.Recurrent is the charaeteristics of OKC and the histopathologic features of recurrent OKC are most appeared as parakeratin type.