牙构造与年龄的关系——第一磨牙内部构造与年龄的关系

人类学学报 ›› 1983, Vol. 2 ›› Issue (01): 72-79.

牙构造与年龄的关系——第一磨牙内部构造与年龄的关系

魏博源,冯家骏,方中祜

出版日期:1983-03-15 发布日期:1983-03-15

The relationship between the construction of maxillary first molar and age

Wei Boyuan, Feng Jiajun, Fang Zhonghu

Online:1983-03-15 Published:1983-03-15

摘要/Abstract

摘要： 本文根据牙本质终身不断地向髓腔方面增生的生理现象,对我国华南地区97颗上颌第一磨牙进行了研究。在研究中应用显微测量技术,在按统一标准制成的牙磨片上测量有关项目,依据指数公式求出髓室牙本质指数。研究结果表明,髓室牙本质指数与年龄的变化呈负相关关系。本文求出了用指数推算年龄的回归方程,并列出了可供参考的年龄估计值全体均数的95％可信限表。

关键词: 髓室牙本质指数;年龄估计;华南人

Abstract: 97 maxillary first permanent molars of Southern Chinese were investigated in this report.
The method of study is as follows: the teeth investigated were ground into 0.5 mm thick slies through the central part of the buccolingual sides of the molar. The height and width of the pulp chamber and the dentine of the slice were measured with the micrometer through microscope. The pulp-dentine index was calculated according to the following formula:
Pulp-dentine index =(height + width of pulp chamber)/(height + width of dentine)*100. We found that there is a negative correlation between the pulp-dentine index and the age of all teeth examined. The regression formula to estmate age is： g=( —1.01) )s+ 82.82 (where： t/=pulp-dentine index, a:^estimated age).

Key words: Pulp-dentine index; Age estimation; Southern Chinese

魏博源,冯家骏,方中祜. 牙构造与年龄的关系——第一磨牙内部构造与年龄的关系[J]. 人类学学报, 1983, 2(01): 72-79.

Wei Boyuan, Feng Jiajun, Fang Zhonghu. The relationship between the construction of maxillary first molar and age[J]. Acta Anthropologica Sinica, 1983, 2(01): 72-79.