新石器时代河南下王岗人群磨牙磨耗特点  

Tooth wear characteristics of Neolithic Xiawanggang population in China

作　　者：王娜[1,2] 李伟[2] 

机构地区：[1]云南农业大学思想政治理论教研部,昆明650201 [2]云南农业大学人文社会科学学院,昆明650201

出　　处：《解剖学杂志》2012年第4期493-496,共4页Chinese Journal of Anatomy

基　　金：国家自然科学基金青年科学基金（41102015）;中科院战略性先导科技专项（XDA05130102）;北京市哲学社会科学规划项目（12LSC013）;中央高校基本科研业务费专项资金（1112KYQN12）

摘　　要：目的：分析新石器时代下王岗人群下颌骨第1磨牙齿冠面4个区域的磨耗特点。方法：新石器时代下王岗人群下颌骨共36例，磨牙共66颗，将下颌骨第1磨牙齿冠面分为4个区域，根据磨耗程度进行分级，然后比较各个区域的磨耗级别，并与近代、青铜铁器时代人群进行对比。结果：下王岗人群下颌第1磨牙的磨耗区1〈区3，与近代、青铜铁器时代人群不同（区1〉区3）。结论：下王岗人群下颌第1磨牙4个区域的磨耗大小关系为区3〉区1〉区4〉区2，与近代、青铜铁器时代人群（区1〉区3〉区4〉区2）的差异可能与下颌骨的相对尺寸、咬合时齿尖的对应关系有关。Objective： To discover the wear characteristics of the first mandibular molar （M1） in Neolithic Xiawanggang population. Methods： The crown of 66 M1 belonged to 36 human mandibles from Xiawanggang, Henan were divided into 4 areas. Then, the tooth wear of each area was recorded, analyzed and compared with other populations living different period. Results ： The tooth wear of M1 from Xiawanggang people in area 1 was slighter than that in area 3, which was reversed compared with those living in other periods. Conclusion： The tooth wear of Xiawanggang people exhibits a sequence of area 3〉 area 1〉area 4〉area 2 in M1, and the tooth wear sequence of area 3 and area 1 is possibly related to the relative size of mandibles and occlusal contacts.

关 键 词：新石器时代 下王岗 下颌第1磨牙 磨耗 

分 类 号：R781.1[医药卫生—口腔医学]