各种混合牙分析方法的性别特异性准确性:基于人口的横截面研究
Taner Öztürk1, Beyza Kahraman Büyüknalbant1, Gökhan Çoban1
1Department of Orthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Türkiye.
概括
在土耳其儿童中,Gross-Hadund和Bachmann方法对预测未爆发的牙大小最为准确. 目前的混合牙分析方法需要根据人群进行特定的调整,以便可靠地规划正牙治疗.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科人类学 牙科人类学
背景情况:
- 准确预测未爆发的永久性狗和前 (PCP) 间距直径 (MDD) 对于正牙治疗规划至关重要.
- 现有的混合牙分析方法可能会显示出特定人群的精度差异.
研究的目的:
- 在土耳其儿科群体中评估PCP MDD的七种常见混合牙分析方法的预测准确性.
- 确定在这个人口群体中临床应用最可靠的方法.
主要方法:
- 一个回顾性,基于人口的横截面研究,涉及120名土耳其儿童 (年龄在13-16岁).
- 七种预测方法的比较:Tanaka-Johnston,Moyers,Tränkmann,Legovic,Gross-Hasund,Bachmann和Melgaço. 这三种预测方法的比较方法包括:
- 使用数字牙科模型测量了牙直径,并将预测值与实际牙大小进行了比较.
主要成果:
- 格罗斯-哈桑德和巴克曼的方法表现出最高的准确性,对两性均有最小的偏差.
- 塔纳卡-约翰斯顿和莫耶尔斯的方法显示,男性倾向于高估,女性倾向于低估.
- 特兰克曼方法表现出最大的预测误差,特别是在男性中,在大多数方法中观察到基于性别的显著差异.
结论:
- 目前的混合牙分析方法需要根据人口和性别进行特定的修改,以便在土耳其人口中准确应用.
- 由于其可靠性,推使用格罗斯-哈桑德和巴克曼方法,而特兰克曼方法显示了显著的差异.
- 建议制定特定人群的回归方程,以提高混合牙分析和正牙治疗计划的准确性.
相关概念视频
Teeth
676
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...
676
Mechanistic Models: Compartment Models in Individual and Population Analysis
86
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
86
The Ratio of X Chromosome to Autosomes
8.8K
In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
8.8K


