在蒙古人口中对尾后牙和尾鼻的地形分析
Namuunzul Yondon1, Urangua Erdenechuluun1, Khatanzaya Ulziisaikhan1
1Dentistry, School of Dentistry, Mongolian National University of Medical Sciences, Ulaanbaatar, MNG.
Cureus
|June 23, 2025
概括
圆束计算机断层扫描 (CBCT) 揭示了蒙古成年人尾后牙解剖和鼻腔附近的显著差异. 牙中较短的骨厚度和第二牙的垂直距离减少增加了牙植入程序的风险.
科学领域:
- 牙科 牙科是指牙科的专业.
- 口腔解剖学 口腔解剖学
- 放射学 放射学是一门学科.
背景情况:
- 大后牙根与大鼻腔的距离对于牙科治疗至关重要.
- 这种关系在不同人群中存在差异,影响治疗结果.
- 了解局部解剖学是成功进行内牙,假牙,正牙和外科手术的关键.
研究的目的:
- 为了评估大后牙的膜骨解剖学.
- 为了评估这些牙和大鼻腔之间的垂直关系.
- 为了分析蒙古成年人的这些解剖特征,使用圆束计算机断层扫描 (CBCT).
主要方法:
- 追溯性研究设计.
- 分析了30个CBCT扫描,检查了202个大后牙.
- 在六个定义的距离 (L1-L6) 上测量膜骨厚度,并使用Kwak系统对鼻牙附近的分类.
主要成果:
- 在所有测量距离 (p<0.001) 中发现了统计学上显著的差异.
- 考克的分类揭示了常见的类型:第一个前 (82.1%),第一个前 (63.3%),第一个 (43.3%),第一个 (43.3%).
- 平均距离在0.74±2.09毫米 (L6) 到6.04±3.50毫米 (L4) 之间.
结论:
- 与前相比,体在根部和膜板之间具有较窄的骨结构,可能会限制植入物稳定性.
- 第二牙与上鼻腔的垂直距离最短,这增加了在植入物放置期间鼻腔穿孔的风险.
相关概念视频
01:15Teeth
731
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
731
01:27Cranial Bones: Lateral View
2.7K
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
2.7K