下第二前断角化:从混合牙到永久牙的纵向随访
Beatriz Quevedo1, Felicia Miranda1, José Roberto Pereira Lauris2
1Department of Orthodontics. Bauru Dental School. University of São Paulo, Bauru, Brazil.
European journal of orthodontics
|July 15, 2023
概括
在正患者中,下第二前 (MnP2) 脱节的患病率为4.85%. 轻度至中度病例通常会自我纠正,但与其他牙异常有关.
科学领域:
- 牙科 牙科是指牙科的专业.
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科解剖学 牙科解剖学
背景情况:
- 第二前 (MnP2) 脱节是正牙患者的常见发现.
- 了解它的流行和自然过程对于治疗规划至关重要.
研究的目的:
- 为了确定MnP2的频率distangulation在一个正牙群体.
- 分析MnP2随时间的角度变化.
- 为了识别相关的牙异常.
主要方法:
- 追溯分析了865名正牙患者的病历.
- 对抗偏角化组 (n=42) 与对照组 (n=32) 的比较.
- 混合和早期永久牙的放射分析,评估角度,根形成和异常.
主要成果:
- 在混合牙中,MnP2脱节的发病率为4.85%.
- 与对照组相比,偏角的MnP2显示出较小的初始角度.
- 自发直立发生在76.57%的病例中.
- 发现了与生殖,小侧切口和落叶叶内闭的显著关联.
结论:
- 在4.85%的正牙患者中发生MnP2脱.
- 轻度至中度的扭曲倾向于自我纠正,从混合牙到永久牙.
- 相关的异常,如小侧切口和生殖,需要注意.
相关概念视频
01:15Teeth
501
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...
501
01:21Tooth Anatomy
563
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...
563