永久下犬的根形状和根通道形态的变化
Kriti Shrestha1, Snigdha Shubham1, Sageer Ahmed1
1Department of Conservative Dentistry and Endodontics, UCMS, Bhairahawa, Nepal.
Journal of Nepal Health Research Council
|April 14, 2024
概括
大多数下型犬只有一根根和一条通道,但存在解剖学变异. 这项研究发现,5%的尼泊尔下犬有两个根,根数或运河配置没有基于性别的差异.
科学领域:
- 牙科 牙科是指牙科的专业.
- 人体解剖学 解剖学 解剖学
- 放射学 放射学是一门学科.
背景情况:
- 牙犬通常只有一根根和一个道.
- 然而, mandibular canines 的解剖学变异已经被记录下来.
- 了解这些变异对于有效的内牙治疗至关重要.
研究的目的:
- 为了调查根数变化的流行情况.
- 分析永久下犬的根管形态.
- 在尼泊尔人群中评估这些特征.
主要方法:
- 分析了来自390名尼泊尔患者的780个下犬的束计算机断层扫描 (CBCT) 扫描.
- 根的数量和根管的配置被记录下来.
- 描述性统计和千平方测试用于数据分析.
主要成果:
- 在分析的下犬中,95%是单根的,5%是双根的.
- 在单根犬中最常见的根管配置是Vertucci Type I (85.6%).
- 在性别和根数或道配置之间没有发现统计学意义上的关联.
结论:
- 这项研究证实,虽然大多数下犬只有一根根,但很少有一部分 (5.2%) 具有两根根.
- 根管形态变异,虽然存在,但主要遵循I型配置.
- 这些发现强调了考虑尼泊尔人内手术中的解剖学变异的重要性.
相关概念视频
01:21Tooth Anatomy
459
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
459
01:15Teeth
404
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...
404