摘要
目的用正畸方法前移第二磨牙及竖直水平阻生的第三磨牙关闭下颌第一磨牙缺失后的间隙。方法12例患者一侧下颌第一磨牙严重龋坏或缺失,且在相同区内存在下颌第二磨牙和形态发育正常的水平阻生的下颌第三磨牙,除8例下颌第一磨牙已拔除外将余下4例严重龋坏的第一磨牙拔除,通过正畸近中移动磨牙代替缺失的磨牙,分析治疗前后前移磨牙的牙槽骨改建情况。结果所有病例在22～32个月内成功完成治疗,并建立了良好的邻接与咬牙合关系,口腔全景X线片可见所有病例矫治后前移磨牙牙槽骨改建良好。结论在某些病例中前移第二磨牙及竖直水平阻生的第三磨牙矫治下颌第一磨牙缺隙远胜于传统的修复治疗。
Objective To close the space of absence of lower first molar by orthodonticis measure of movement of distal lower second molar and suspension and erection of impacted lower third molar.Methods 12 cases with lower first molars of severe caries or absence in one side while healthy lower second molar and horizontal impacted lower third molar were detected in the same area.4 cases needed be extracted lower first molars of severe caries.The other 8 patients had lost one lower first molar because of odontonecrosis.All of patients were given the orthodontic treatment of moving the distal molar to replace the absence.Rebuilding of lower second and third molar alveolar bone were statistical analyzed between pre-treatment and post-treatment.Results After 22 to 32 months of treatment,all cases ended in perfect contact and occlusion and had good rebuilding of alveolar bone of movement of distal molars in panoramic radiographs.Conclusion Movement of distal lower second molar and suspension and erection of horizontal impacted lower third molar was much better than traditional restoration of lost molar in certain cases.
出处
《临床军医杂志》
CAS
2009年第4期657-659,共3页
Clinical Journal of Medical Officers
关键词
磨牙
水平阻生
牙槽骨
正畸
molar
horizontal impaction
alveolar bone
orthodonticis
