摘要
目的:通过对正畸关闭陈旧性磨牙间隙前后牙槽嵴高度的对比,探讨关闭陈旧性磨牙间隙是否加重牙槽嵴吸收。方法:观察下颌第一磨牙陈旧性拔牙间隙29处。测量矫治前后该处牙槽嵴高度,将测量值进行配对t检验。结果:矫治后下颌第一磨牙缺牙处的牙槽嵴高度比矫治前增大,差异具有显著性。结论:采用拔除第一磨牙后的第二磨牙近中平移技术,不仅不会加重牙槽嵴的吸收,反而有助于维护该处牙周组织的健康。
Objective： To study if closing obsolete molar space could cause severe resorption of alveolar crest through comparing the height of alveolar crest before and after closing obsolete molar space.Method： 29 lower first molar spaces were observed and the height of alveolar crest before and after treatment were analyzed with paired-t tests.Result：The alveolar crest height of lower first molar increased statistically after treatment .Conclusion： The method of mesio-translation of lower second molar couldn＇t aggravate resorption of alveolar crest but conduce to protecting periodontal tissue.
出处
《临床口腔医学杂志》
2007年第2期122-124,共3页
Journal of Clinical Stomatology
关键词
口腔正畸
磨牙间隙
牙槽嵴高度
orthodontic
molar space
height of alveolar crest
