[在189名上海儿童中研究了正常叶落牙的数字模型]
Yue Cai1, Man-Man Zhang, Hong-Ru Su
1Dental Disease Control Institute, Xuhui District. Shanghai 200032, China.
Shanghai kou qiang yi xue = Shanghai journal of stomatology
|October 7, 2023
概括
男孩表现出比女孩更大的树叶牙参数,并注意到了显著的性别差异,特别是在4岁时. 这些发现突显了儿童早期牙弧形的发育变异.
科学领域:
- 儿科牙科 儿科牙科
- 头骨面部的发展
- 人类成长和发展 人类成长和发展
背景情况:
- 了解落叶牙的性别特异性生长模式对于评估正常牙发育至关重要.
- 以前的研究表明了潜在的变化,但详细的3D分析是有限的.
研究的目的:
- 为了研究正常的落叶牙尺寸的性别差异.
- 分析3-6岁儿童生长和发育的调节.
主要方法:
- 使用3D数字牙科模型,从189名儿童 (3-6岁) 的口腔内扫描中重建.
- 使用Geomagic Studio软件提取牙弧度参数 (周长,长度,宽度) 和半距离牙冠宽度.
- 使用SPSS 22.0分析数据,比较性别和年龄组之间的参数.
主要成果:
- 男孩通常比女孩更显著地显示出更大的树叶牙参数 (P<0.05).
- 在各种参数中观察到显著的性别差异,最显著的是4岁.
- 性别之间,梅西奥迪斯塔尔王冠宽度也存在显著差异,除了特定的牙之外.
结论:
- 在儿童的正常落叶牙中存在明显的性别差异.
- 这些差异在4岁左右是最明显的,这表明牙发育中的性变态的一个关键时期.
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