【摘要】 为积累国人体质调查资料 ,对长春及通辽地区出土的成人下颌骨 138例 (男 83,女 55)的下颌骨弧、颏孔间弧、下颌联合弧、下颌角、左侧及右侧下颌角、下颌侧面角 II,III等八项指标进行了测量 ,数据统计结果列于表 ,上述各项目 t值检验表明 :除颏孔间弧及下颌侧面角 II、III以外 ,其余各项均存有显著的性别差异更多还原

【Abstract】 adult mandibles (male 83, female 55) collected in Changchun and Tongliao districts were measured. The main results were as follows: The mandibular arc[±s(min～max)mm]: male 185.90±10.70(165～219), female 179.85±8.23(157～198); The arc of intermental foramina: male 53.08±3.07 (45.5～63), female 51.90±4.04(44～62); The arc of symphysis: male 37.45±3.33(30～44), female 34.25±4.37(29～45); The mandibular angle: male 121.05°±7.05°(106°～139.50°), female 126.84°±6.91°(114.5°～147°); Right mandibular angle: male 119.11°±6.03°(107.5°～134°), female 124.36°±6.11°(113°～135.5°); Left mandibular angle: male 119.64°±6.14°(106°～135°), female 124.34°±5.97°(112°～137.5°); The profile angle of mandible II: male 97.40°±6.26°(90.1°～119.7°), female 97.21°±4.96°(90.3°～113.1°); The profile angle of mandible III: male 84.26°±3.50°(76.3°～89.8°), female 84.04°±3.89°(73.6°～89.7°). There were highly significant sexual differences in the above measurements except the arc of intermental foramina and the profile angle of mandible II, III.更多还原