摘要
目的:探讨采用拔除磨牙的方法矫治后牙宽度不调的临床疗效。方法:选择设计拔除磨牙矫治的7例骨性Ⅲ类错伴全牙弓反病例,男3例,女4例,年龄15～25岁,平均17.5岁,其中2例拔除下颌第一磨牙(牙冠大部龋坏),5例拔除下颌第二磨牙,上颌对应拔除第二或第三磨牙。全部病例采用直丝弓矫治器矫治。矫治时间12～28个月,平均18个月。结果:所有病例矫治结束时均建立磨牙中性关系和前后牙正常覆覆盖关系,2例病例需追踪观察第三磨牙的萌出和建情况。结论:拔除磨牙矫治后牙宽度不调取得了良好的矫治效果。
To discuss treatment effect of the method which extracting permanent molar to correct the posterior arch width disharmonious.Method：7 cases with skeletal class III malocclusion and whole arch overbite were designed molar extraction.3 males, 4 females,aged 15～25 years,with an average age of 17.5 years.In seven cases two had the mandibular first molar-extracted （most carious crown）, five had the mandibular second molars extracted, correspondingly removed their maxillary second or third molars. All cases were treated with straight wire appliance.Correction for the longest time were 28 months and the shortest 12 months, an average of 18 months.Result：All patients at the end of treatment had established a neutral molar relationship and normal overbite overjet, two cases required follow-up observation of the third molar eruption and the construction of the bite.Conclusion： Design choosed extracting molars has shown to be an effective way to correct the posterior arch width disharmonious.
出处
《临床口腔医学杂志》
2007年第5期317-319,M0003,共4页
Journal of Clinical Stomatology
关键词
口腔正畸
磨牙
拔牙
宽度不调
orthodontics
molar
extraction
width disharmonious
