【摘要】 目的:观测下颌管形态结构及其与周围牙槽骨的关系,为下颌骨手术、种植牙手术提供参考数据。方法:对100个人体下颌骨下颌管上缘至各牙槽嵴顶的间距和颏孔至下颌孔的间距进行观察与测量,根据《人类骨学测量方法》规定的年龄估计及性别标准加以分析。结果:下颌管均值长:男性:62.30 mm,女性:57.69 mm;下颌管上缘至第二前磨牙牙槽嵴距离:男性:14.79 mm,女性:15.14 mm;下颌管上缘至第一磨牙牙槽嵴距离:男性:14.69 mm,女性:14.23 mm;下颌管上缘至第二磨牙牙槽嵴距离:男性:14.68 mm,女性:14.21 mm;下颌管呈圆形68例,卵圆形32例。结论:男女不同性别牙槽嵴至下颌管距离无显著性差异,(P>0.05),但男女性下颌管长度有显著性差异,男性>女性,(P<0.01)。更多还原

【Abstract】 Objective:To provide some referential date for determining approach and depth when mandibular operation or dental plantation was made.Method:100 mandiblae were collected to measure the distances from superid border of mandibular canal to alveoral cristae and that from mental foramen to mandibular foramen.The date obtained were analysed according to age-evaluation and sexual standard(WU:Measurement’s Methods of Human Skeleton,1965).Result:The average length of mandibular canal was 62.30 mm in male and 57.69 mm in female.The distance from superiol border of mandibular canal to alveolar crista of 2nd anteriol mole was 14.79 mm in male and 15.14mm in female,that to alvedar crista of 1st mole were 14.69 mm and 14.23 mm,and that to alveolar crista of 2nd mole were 14.68 mm and 14.21 mm.The shape of 68cases of mandibular canal were round and 32 cases were ovoid.Conclusion:Between the two sexualities,there is no obvious difference about distance from superid border of mandibular canal to alveolar crista(P >0.05),but there is remarkable difference about length of mandibular canal,i.e.in male>in female(P <0.01) so that,one must take care when the mandibular operation is made.更多还原