大第一个的旋转对牙科II类缺陷严重性的影响:一个横截面研究
Lidhiya Alexander1, A Shanaj Doulath1, V Arun1
1Department of Orthodontics and Dentofacial Orthopaedics, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth University, Puducherry, India.
Journal of orthodontic science
|October 26, 2023
概括
尾大的旋转显著影响二级缺陷的严重程度. 在完整的II类病例中,较大的腹腔宫旋转表明缺陷的增加.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科形态学 牙科形态学
- 头骨面部的发展
背景情况:
- 第二类缺陷是常见的牙异常.
- 牙的旋转是导致缺陷严重程度的潜在因素.
研究的目的:
- 为了评估尾大旋转对牙II类缺陷严重性的影响.
- 为了评估牙旋转和II类恶性闭塞等级之间的相关性.
主要方法:
- 分析了四组II类缺陷 (1/4到全部) 的缺陷 (n=20,15,16,12).
- 使用弗里尔角,里克特斯E线,亨利角和前角进行了头第一个永久性头旋转的数字评估.
- 统计分析采用单向ANOVA.
主要成果:
- 完整的II类恶性闭塞 (IV组) 显示出明显更高的上大的旋转值.
- 具体的平均值:弗里尔角 (59.6±1.61°),里克特斯E线 (12.3±1.77mm),亨利角 (19±3.19°),前极角 (12.5±5.83°).
结论:
- 完整的座II类缺陷表现出更高程度的部部部旋转.
- 增加腹腔部旋转与II类缺陷严重程度的增加有关.
- 长轴上的上毛骨旋转是毛骨关系严重性的主要决定因素.
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