Measurement and analysis of cranial localization of mental parietal position and orthograph in adolescentpatients with facial asymmetry deformity
青少年面部不对称畸形患者头颅定位颏顶位和正位片的测量分析研究

摘要

目的 测量分析青少年面部不对称畸形患者头颅定位颏顶位和正位片。方法 将2020年1月-2021年12月口腔正畸科就诊的30例青少年安氏Ⅲ类患者纳入研究，根据锥体束CT检查，将正面观面部左右不对称，颏下点偏离颅颌中线＞2mm视为偏斜组，正面观面部无明显偏斜，颏下点偏离颅颌中线＜2mm视为非偏斜组，每组各15例，均接受拍头颅定位颏顶位和正位片，展开测量比较。结果 头颅定位颏顶位片显示，偏斜组的U6MA-C、U6MA-T、U6MA-A、L6MA-C、L6MA-T、L6MA-A高于非偏斜组，U6MA-R、L6MA-R低于非偏斜组（P＜0.05）；头颅正位片显示，偏斜组的U6MB-H、U6MB-S、L6MB-H、L6MB-S均高于非偏斜组（P＜0.05）。结论 青少年面部不对称畸形主要表现为上下颌基骨对称、下颌轻微移位、颏部偏斜，经过具体分类，有助于临床及时确诊以及制定正确的矫治方案。

Abstract

Objective To measure and analyze the mental positioning and orthotablet in adolescent patients with facial deformity.
Methods in January 2020-December 2021 orthodontic department of 30 teenagers, according to the cone tract CT examination, the frontal face asymmetry, subchin midline> 2mm as deviation group, positive face no obvious deviation, submental midline <2mm as non-biased group, 15 cases in each group, all received head positioning mental top and positive slice, measurement comparison.
Results The U6MA-C, U6MA-T, U6MA-A, L6MA-A, L6MA-A-T, L6MA-A, U6MA-R, L6MA-R (P <0.05), and the U6MB-H, U6MB-S, L6MB-H and L6MB-H, L 6 M B-S were higher than the non-biased group (P <0.05).
Conclusion   Juvenile facial asymmetry deformity mainly shows maxillary base bone symmetry, slight mandibular displacement and mental deviation, which is helpful to timely clinical diagnosis and correct correction plan.