新石器时期人髁突形态与下颌角相关性研究

Study of pertinence between condylar morphology and angle of mandible in Neolithic Era

目的：了解新石器时期人髁突形态，探讨其与下颌角的关系。方法：选取保存基本完整的西安半坡遗址出土新 石器时期（距今约6000年前）人下颌骨标本82例，左右侧髁突共122个，年龄20～60岁。采用数显游标卡尺及下颌骨测量器对下颌角及髁突进行测量，测量结果用SPSS13．0进行统计分析。结果：不同下颌角角度各组中髁突形态分布有显著性差异护〈0．01）；且随着下颌角角度的增加，异常型髁突比率存在增加趋势。结论：下颌角越大，表现为异常髁突形态的几率越大。为系统地研究人类髁突形态学演化积累数据资料。

Objective：To study the morphology of condylar and the relationship between it and angle of mandible in Neolithic Era. Method：82 adults mandibles with 122 condylars （in Neolithic Era about 6000 years ago） well-preserved in Ban Po Museum,were chosen. Measured with mandibulometer device and digital vernial caliper. Data obtained were analyzed by SPSS13.0. Result：Statistical differences were found in condylar morphology type between groups, and the ratio of abnormal condylar type had increased with the increase of angle of mandible. Conclusion：The greater angle of mandible is,the greater chances of abnormal condylar type will be observed. Provide some results for the evolution of condylar morphology.