狗后牙形状不对称:基于证据的形态学见解
Srikant Natarajan1, Junaid Ahmed2, Shravan Shetty3
1Department of Oral Pathology and Microbiology, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, India.
Journal of oral biology and craniofacial research
|April 28, 2025
概括
牙不对称性在两性之间有所不同,前牙和某些牙表现出更多的不对称性. 了解这种牙变异对于牙科诊断和治疗计划至关重要.
科学领域:
- 人类学是人类学.
- 牙科 牙科是指牙科的专业.
- 进化生物学 进化生物学
背景情况:
- 研究牙形状和地标位置的牙不对称性.
- 检查性别之间牙解剖学的差异.
研究的目的:
- 为了评估后犬牙的牙对称性和不对称性.
- 分析牙左侧和右侧之间解剖学标志的变化.
主要方法:
- 在160名患者 (13-20岁) 上利用了3D几何形态测量.
- 专注于后犬牙,分析解剖学里程碑变化.
主要成果:
- 在大多数牙中观察到显著的形状差异,不包括三下第二前.
- 在大前和特定的下牙 (第二前,第一) 中,不对称性更明显.
- 两性之间没有发现中枢肌大小的显著差异.
结论:
- 突出了双边对称性的进化意义.
- 暗示波动不对称可能与遗传或环境因素有关.
- 强调牙不对称性知识在牙科修复和正牙科诊断和治疗规划方面的重要性.
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