临床口腔医学杂志2017，Vol.33Issue(8)：471-473,3.DOI:10.3969/j.issn.1003-1634.2017.08.007
舌侧矫治系统中控制前牙转矩牵引力方向的HITS实验研究
Analysis of retraction direction about controlling the anterior teeth torque in lingual orthodontic system based on HITS
摘要
Abstract
Objective:To optimize the direction of the anterior teeth torque during the closing space by Typodont experiment based on HITS.Methods:Sixteen Class Ⅱ1 maxillary Typodonts without first premolar were made.Micro-implants were implanted in the lingual region of the posterior teeth area and labial region of the anterior teeth area.The direction of the retract force was adjusted by changing the position of the lingual micro-implant and the length of the hook.The tooth movement was simulated by HITS then the models were scaned before and after loading the force.With that,the three-dimensional images were reconstructed by Mimics 17.0 software and Factorial variance analysis with SPSS 22.0 software.Results:It can control the anterior teeth torque better when loading labial depressing force at the same time.During the closing space,the difference of the anterior teeth movement displacement between the incisal edge and the root apex was smaller in the group with 4 mm hook length and 6 mm distance from the alveolar crest of the lingual micro-implant place.The difference was also smaller in the group with 8 mm hook length and 10 mm distance from the alveolar crest of the lingual micro-implant place.Conclusion:During the closing space,it can provide an effective anterior torque with 4 mm hook length/6 mm micro-implant implant place or 8 mm hook length/10 mm micro-implant implant place by the Micro-Implant Anchorage-Lingual Orthodontic System.关键词
Typodont模型/双槽沟舌侧托槽/电磁感应模拟矫治装置(HITS)/力学实验Key words
Typodont/Double-slots lingual bracket/HITS/Mechanics experiment分类
医药卫生引用本文复制引用
荆璇,李冰,HEE-Moon Kyung,李世锋,武秀萍..舌侧矫治系统中控制前牙转矩牵引力方向的HITS实验研究[J].临床口腔医学杂志,2017,33(8):471-473,3.基金项目
国家自然科学基金(81400553) （81400553）
山西省国际科技合作项目(2015081030) （2015081030）
