西安地区3000年前人颌骨隆起发育相关影响的研究

Factors affecting the formation of exostoses on mandible and maxilla from Xi'an about 3000 years ago

目的:对出土的3000年前人颌骨隆起发育状况进行观测,研究其与咀嚼力相关指标和口腔健康状况的相关性,以探讨与人颌骨骨质隆起的发育和退化有关的因素。方法:选取西安地区出土的3000年前人颌骨标本40例,观测上颌颊侧隆起(BE)以及下颌舌侧隆起(LME)的形态,并记录了颞下颌关节病理性形态表现、牙齿龋损状况、牙齿生前缺失、牙石状况、牙槽骨水平吸收、第一磨牙和第二磨牙磨耗、磨耗率等口颌健康、咀嚼力评估指标,数据用SPSS14.0软件进行统计分析。结果:BE、LME均与颞下颌关节病理性形态表现强相关;LME与M1、M2的磨耗率中等相关;BE与牙齿龋损状况、牙齿生前缺失、牙石状况、牙槽骨水平吸收弱相关。结论:研究3000年前人颌骨骨质隆起的一般情况及其相关影响因素,有助于研究颌骨隆起在人类进化过程中的变化规律,为进一步认识当时人类生产和生活情况积累资料。

AIM：Exostoses on mandible and maxilla from excavated skeletons of Xi＇an people about 1000 BC were measured in order to explore the relationship between the formation of exostoses and masticatory stress as well as oral health status.METHODS：40 excavated skeletons of about 1000 BC,were chosen for examination of exostoses on maxilla and lingual mandibule（LME）.Other parameters,such as the morphology of temporomandibular joint,occlusal wear of molars,occlusal wear rate of molars,carious lesions,antemortem tooth loss,calculus and alveolar absorption levels were also measured.Data was analysed with SPSS 14.0 software.RESULTS：Both BE and LME showed significant correlations with disorders of TMJ.LME showed a moderate but positive significant correlation with the wear rate on molars.BE showed a significant correlation with carious lesions,antemortem tooth loss,calculus and alveolar bone absorption.CONCLUSION：Jaw exostoses can be a useful parameter to examine the changes during human mankind evolution.