来自不同南美国家的下第一个前的内部形态的多人群评估. 一个微型计算机断层扫描研究
Marilia F Marceliano-Alves1, Pablo Amoroso-Silva2, Flávio R F Alves3
1Department of Endodontics, Faculty of Dentistry, Iguaçu University (UNIG), Nova Iguaçu, RJ, Brazil.
Archives of oral biology
|October 13, 2023
概括
这项研究使用微计算机断层扫描分析了拉丁美洲下第一个前的解剖学. 在各国之间发现了根运河配置和辅助通道的显著差异.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科解剖学 牙科解剖学
- 人类学是人类学.
背景情况:
- 了解下第一个前的解剖学对于成功的内牙治疗至关重要.
- 以前的研究表明,牙解剖学在不同人群中存在差异.
- 关于不同拉丁美洲人群下第一个前的比较解剖学的数据有限.
研究的目的:
- 评估和比较来自巴西,阿根廷,智利,哥伦比亚和厄瓜多尔的个体下第一个前的解剖学参数.
- 使用微型计算机断层扫描 (微型CT) 进行根管形态的详细分析.
- 为了确定内牙解剖学的特定群体变异.
主要方法:
- 微型计算机断层扫描 (micro-CT) 用于扫描500个提取的下第一个前 (100个国家:巴西,阿根廷,智利,哥伦比亚,厄瓜多尔).
- 根运河配置使用既定参数进行分类 (例如,Vertucci的分类).
- 分析包括运河体积,表面积,结构模型指数,距离,顶端运河直径,孔口形状和分支的流行率.
主要成果:
- 在所有国家中,单个根占主导地位 (97%-100%).
- 维尔图奇的I型通道最常见 (36%-66%),其次是C型和V型配置.
- 圆的通道孔最常见 (34%-58%),C形通道 (14%-26%) 始终与根相关. 在许多参数中观察到显著的国家间差异 (P < .05).
结论:
- 维尔图奇的I型和V型以及C型运河代表了研究的拉丁美洲亚种群中最常见的配置.
- 辅助运河和复杂的根运河解剖的患病率在研究的国家之间有很大的差异.
- 这些发现强调了在内牙诊断和治疗规划中考虑区域解剖学变异的重要性.
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