新石器时代至近代成年男性下颌骨颏孔、下颌孔大小的变化

Size variation of mental foramen and mandibular foramen from Neolithic to present in adult men

目的探讨中国全新世人群颏孔、下颌孔尺寸的变异。方法用游标卡尺对中国北方地区新石器时代(54例)、青铜铁器时代(186例)和近代(92例)共332例成年男性颏孔、下颌孔大小进行测量,然后用SPSS13.0软件进行数据分析。结果近代颏孔、下颌孔较大,新时器时代、青铜器时代的颏孔下颌孔较小。结论从新石器时代经过青铜铁器时代到近代,颏孔、下颌孔有增大的趋势。这种变化主要发生于青铜铁器时代至近代,与下颌骨变小的时段一致。

Objective To investigate the size variation of Holocene Chinese mental foramen and mandibular foramen. Methods Measurements was conducted on Neolithic （n = 54） , Bronze-Iron Age （ n = 186） and present （ n = 92） adult male mandibles （n = 332） from Northern China, and data were analyzed using SPSS 13.0. Results The sizes of mental foramen and mandibular foramen in present mandilbes are bigger than that in Neolithic and Bronze-Iron Age. Conclusion The result indicates that the sizes of mental foramen and mandibular foramen become bigger in general from Neolithic to present day.