概括
整形外科手术,包括单和双手术用于骨II和III类异常,导致牙根长度和体积的小,统计学上显著下降. 这种变化观察到无论手术技术或骨切除术.
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.
- 口腔和牙面部外科手术
背景情况:
- 骨类II和III异常通常需要正确的正手术.
- 圆束计算机断层扫描 (CBCT) 是评估牙和骨结构的宝贵工具.
- ортогнатик手术对牙根尺寸的影响需要详细的研究.
研究的目的:
- 为了评估单 (SJ) 和双 (DJ) 整形手术后牙根长度和牙体积的变化,在患有II和III类骨异常的患者中.
- 为了比较经过骨切除术的下巴与未经过骨切除术的下巴的根尺寸变化.
主要方法:
- 一项回顾性研究分析了60名成年人 (36名女性,24名男性) 在整形外科手术前和6-12个月后的CBCT图像.
- 患者被分为四组:II类SJ,II类DJ,III类SJ和III类DJ.
- 测量了牙根的长度和体积,并在组内和组之间进行了比较.
主要成果:
- 在所有组中,在形手术前后的测量之间观察到牙根长度和体积的统计学显著下降 (P < .05).
- 在比较不同手术组时,没有发现根尺寸变化的统计学意义上的差异 (P > .05).
结论:
- 对于斜骨异常的整骨外科手术导致牙根长度和体积在统计学上显著,但在临床上无意义的减少.
- 这些根部变化发生不论具体的手术方法 (SJ与DJ) 或骨切除术的存在.
相关概念视频
01:15Teeth
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 and...
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 and...
01:21Tooth Anatomy
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 grinding food.
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 grinding food.