| 两千年前人与当代人上颌第二前磨牙牙釉质厚度的测量观察 |
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| 引用本文： | 杨香菊,邵金陵,段清波,卢娟. 两千年前人与当代人上颌第二前磨牙牙釉质厚度的测量观察[J]. 科学技术与工程, 2009, 9(12) |
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| 作者姓名： | 杨香菊 邵金陵 段清波 卢娟 |
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| 作者单位： | 第四军医大学口腔医院正畸科,西安,710032;省考古研究所秦陵考古队,西安,710054;第四军医大学流行病学教研室,西安,710032 |
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| 摘 要： | 通过对两千年前人与当代人上颌第二前磨牙牙釉质厚度的比较,探寻牙釉质厚度的变化及牙齿不同部位牙釉质厚度的差异.运用Micro-CT对两千年前人及当代人各10颗上颌第二前磨牙进行扫描,三维重建后测量不同部位牙釉质的厚度.结果上颌第二前磨牙牙釉质厚度,当代人颊尖、舌尖、颊尖区咬合侧、舌尖区咬合侧均大于两千年前人,P<0.05;中央窝处牙釉质厚度,当代人明显大于两千年前人,P<0.01;上颌第二前磨牙不同部位牙釉质厚度比较,舌尖区牙釉质厚度大于颊尖区牙釉质厚度,P<0.01;近中邻面牙釉质厚度大于远中邻面牙釉质厚度,P<0.05;舌面牙釉质厚度大于颊面牙釉质厚度,P<0.05.两千年前人与当代人在牙釉质厚度分布上没有区别.说明牙釉质厚度可能呈现出不断增厚的趋势;此外,同一牙位功能尖区牙釉质厚度大于非功能尖区牙釉质厚度.
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| 关 键 词： | 人 牙釉质厚度Micro-CT |
Difference of Enamel Thickness of the Maxillary Second Premolars of People Two Thousand Years Ago and Modern Human |
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| YANG Xiang-ju,SHAO Jin-ling,DUAN Qing-bo,LU Juan. Difference of Enamel Thickness of the Maxillary Second Premolars of People Two Thousand Years Ago and Modern Human[J]. Science Technology and Engineering, 2009, 9(12) |
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| Authors: | YANG Xiang-ju SHAO Jin-ling DUAN Qing-bo LU Juan |
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| Affiliation: | Department of Othdontics;School of Stomatoyology;Faculty of preverlent sick2;Fourth Military Medical Umiversity;Xi'an 710032;P.R.China;Qing Tomb;Institute of Shanxi Archacology1;Xi'an 710054;P.R.China |
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| Abstract: | To measure the enamel thickness of the maxillary second premolars of modern human and people two thousand years ago,the enamel thickness of different positions of the maxillary second premolars of modern human and people two thousand years ago were measured by Micro-CT.The maximum enamel thickness of cusp region in modern human maxillary second premolars were thicker than them of the people two thousand years ago,P<0.05.The enamel thickness of the occlusal fovea in modern human maxillary second premolars wa... |
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| Keywords: | human enamel thickness micro-CT |
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