临床口腔医学杂志2016，Vol.32Issue(10)：603-605,3.DOI:10.3969/j.issn.1003-1634.2016.10.007
牙列拥挤的解除与上前牙唇倾度及突度变化的相关性研究
The evaluation of the relationship between the alleviation of crowding and the changes in maxillary incisor pro-clination and protrusion
摘要
Abstract
Objective:To examine changes in maxillary incisor proclination and protrusion resulting from alleviation of crowding.Methods:Records of 50 patients with crowded dentition treated without extractions or interproximal enamel re-duction in the maxillary arch were included.Pre-and post-treatment cephalograms and models were examined to determine changes in incisor proclination,protrusion and crowding.Results:For every millimeter of crowding alleviation,increases in in-cisor proclination(U1-SN)and protrusion(U1-AP) of 0.8°and 0.4 mm,respectively,we found,high variability was calculat-ed for both linear variables that can be reduced by incorporating other variables by multilinear regression.Conclusion:For every millimeter of crowding alleviated,0.8°of proclination and 0.4 mm of protrusion are expected.Our results indicate that proclination is mulifactorial and cannot be explained solely by the amount of crowding alleviated during orthodontic treatment.关键词
牙列拥挤/正畸治疗/投影测量分析/唇倾度/突度Key words
Dental crowding/Orthodontic treatment/Cephalometric analysis/Proclination/Protrusion分类
医药卫生引用本文复制引用
杨烁,刘璟珑,李金儒,徐娟..牙列拥挤的解除与上前牙唇倾度及突度变化的相关性研究[J].临床口腔医学杂志,2016,32(10):603-605,3.基金项目
国家自然科学基金项目 （）
