人体天然牙骨牙本质界面区元素分布变化的电子探针微区分析  

The Changes in Quantities of Elements around Cementum Dentin Junction in Human Natural Tooth—? lectron Probe Microanalysis

作　　者：张杰魁[1] 陈治清[1] 邱静[1] 管利民[1] 张敏[1] 刘小青[1] 

机构地区：[1]华西医科大学口腔医学院口腔生物材料研究室,成都610041

出　　处：《生物医学工程学杂志》1998年第2期172-174,178,共4页Journal of Biomedical Engineering

基　　金：国家自然科学基金

摘　　要：采用电子探针能谱微区分析方法初步测定了天然牙牙体组织牙骨质牙本质界面区的钙（Ｃａ）、磷（Ｐ）和硫（Ｓ）三种元素的分布变化特点，以考察人体天然牙硬组织中的无机和有机成分在骨牙本质界面区的分布变化特点。实验结果表明：骨牙本质界面区的Ｃａ、Ｐ元素的分布变化波动幅度较小，在骨牙本质界面区牙骨质和牙本质中的Ｃａ、Ｐ、Ｓ元素的平均重量百分比Ｃｉ值都变化不大，提示牙体组织中的无机和有机成分在骨牙本质界面区的分布未随着牙体组织解剖结构的改变而发生明显变化。To study the changes of inorganic and organic substance around cementum dentin junction in the tissues of human natural tooth, the method of electron probe microanalysis was used in this research project. Determinations of weight percentage(wt%) were made for Ca, P and S elements around cementum dentin junction. The results showed that the changes in quantities of Ca, P and S elements around cementum dentin junction were not significant( P >0 1). These suggest that the quantities of inorganic and organic substance have not obviously varied with the anatomic structure of natural tooth.

关 键 词：天然牙骨 牙本质 电子探针 微区分析 

分 类 号：R783.1[医药卫生—口腔医学]