作　　者： ;

机构地区： 广西医学院

出　　处： 《人类学学报》 1988年第2期160-166,共7页

摘　　要： 本文比较和分析了同口同侧牙齿的相应的磨耗级,提供了除臼齿以外的牙齿磨耗年龄变化依据。同时还对上下对应牙、两侧对称牙的磨耗级作了比较和分析。 The attrition on 1144 permanent theeth (except M3) on 70 crania was investigated. The results show that when Ml presents II scale of attrition, I1 and I2 present III, I1, C°II or III, the others II; when MI III, I1, I2 and C III, the others II; when Ml IV, the others III. Ac-coding to the results the author thinks that three factors, the form of the occlusal surface, the period of being used and dental function, effectively influence the dental wear. Generally speaking, the smaller the contacting area on the occlusal surface of teeth, the faster the wear; the longer the period of being used, the heavier the wear; the more important the function, the heavier the wear. In addition, the attrition scale of the relative teeth on the maxilla and the mandible, and of bilateral symmetrical teeth were also observed and compared. The results show that most of the pairs present same attrition scale.

关 键 词： 牙齿磨耗

领　　域： [生物学]