中国医学创新
中國醫學創新
중국의학창신
MEDICAL INNOVATION OF CHINA
2014年
22期
8-10,11
,共4页
骨性反%头影测量分析%前方牵引%快速扩弓
骨性反%頭影測量分析%前方牽引%快速擴弓
골성반%두영측량분석%전방견인%쾌속확궁
Skeletal crossbite%Cephalometric analysis%Maxillary protraction%Rapid maxillary expansion
目的：探讨前方牵引结合快速扩弓治疗骨性前牙反的疗效。方法：选取2006年6月-2012年5月本院正畸科收治的上颌发育不足引起的骨性Ⅲ类错患者18例，其中男8例，女10例；年龄8.5~13.5岁，平均10.3岁。治疗前、中、后分别拍摄头颅侧位X线片，进行头影测量分析，治疗前后各指标比较采用方差分析。结果：所有患者均由ClassⅢ矫正为ClassⅠ类，牵引结束上颌骨A点平均移动2.03 mm（P<0.001）。SNA平均前移0.92度（P<0.01），上切牙向前移动平均2.75 mm（P<0.001），上切牙至SN角度平均改变5.01度（P<0.01）。ClassⅢ关系有复发趋势，可能是下颌生长导致。结论：ClassⅢ错接近于4~5 mm的反覆盖或者更小比较接近成功矫治的范围。研究结果表明，牙齿和骨骼的改变是均等的，但这并不意味着反覆盖大于5 mm就成为禁忌证。上颌骨前移的效果基本稳定，ClassⅢ的复发趋势主要是由于下颌骨进一步生长的结果。
目的：探討前方牽引結閤快速擴弓治療骨性前牙反的療效。方法：選取2006年6月-2012年5月本院正畸科收治的上頜髮育不足引起的骨性Ⅲ類錯患者18例，其中男8例，女10例；年齡8.5~13.5歲，平均10.3歲。治療前、中、後分彆拍攝頭顱側位X線片，進行頭影測量分析，治療前後各指標比較採用方差分析。結果：所有患者均由ClassⅢ矯正為ClassⅠ類，牽引結束上頜骨A點平均移動2.03 mm（P<0.001）。SNA平均前移0.92度（P<0.01），上切牙嚮前移動平均2.75 mm（P<0.001），上切牙至SN角度平均改變5.01度（P<0.01）。ClassⅢ關繫有複髮趨勢，可能是下頜生長導緻。結論：ClassⅢ錯接近于4~5 mm的反覆蓋或者更小比較接近成功矯治的範圍。研究結果錶明，牙齒和骨骼的改變是均等的，但這併不意味著反覆蓋大于5 mm就成為禁忌證。上頜骨前移的效果基本穩定，ClassⅢ的複髮趨勢主要是由于下頜骨進一步生長的結果。
목적：탐토전방견인결합쾌속확궁치료골성전아반적료효。방법：선취2006년6월-2012년5월본원정기과수치적상합발육불족인기적골성Ⅲ류착환자18례，기중남8례，녀10례；년령8.5~13.5세，평균10.3세。치료전、중、후분별박섭두로측위X선편，진행두영측량분석，치료전후각지표비교채용방차분석。결과：소유환자균유ClassⅢ교정위ClassⅠ류，견인결속상합골A점평균이동2.03 mm（P<0.001）。SNA평균전이0.92도（P<0.01），상절아향전이동평균2.75 mm（P<0.001），상절아지SN각도평균개변5.01도（P<0.01）。ClassⅢ관계유복발추세，가능시하합생장도치。결론：ClassⅢ착접근우4~5 mm적반복개혹자경소비교접근성공교치적범위。연구결과표명，아치화골격적개변시균등적，단저병불의미착반복개대우5 mm취성위금기증。상합골전이적효과기본은정，ClassⅢ적복발추세주요시유우하합골진일보생장적결과。
To evaluate the curative effect of maxillary protraction combined with rapid maxillary expansion in treatment of skeletal anterior crossbite.Method:18 skeletal anterior crossbite patients caused by maxillary deficiency from department of orthodontics in our hospital from June 2006 to May 2012 were selected,8 cases were male, 10 cases were female in the late mixed dentition.The age ranged from 8.5 to 13.5 years.The mean age was 10.3 years. For each patient,a lateral cephalogram was taken before treatment(T1),immediately posttreatment(T2)and after an observation period(T3)averaging 6 months.The indices before and after treatment were compared using analysis of variance.Result:All patients were corrected by ClassⅢto ClassⅠ.It showed that immediately posttreatment,the maxilla moved anteriorly a mean of 2.03 mm(P<0.001)and A point increased 0.92 degree(P<0.01).The maxillary teeth moved anteriorly 2.75 mm(P<0.001)and changed 5.01 degree(P<0.01),while the mandible rotated in a downward and backward direction.Long-term,the anterior position of the maxilla was maintained,but some of the ClassⅢcorrection was lost because of mandibular growth.Conclusion:The ClassⅢmalocclusion with a negative overjet of 4 to 5 mm or smaller is close to the successful treatment range.The results show that the dental and skeletal changes are equal.This does not necessarily mean that treatment in children with a negative overjet greater than 5 mm is contraindicated.The effect of maxillary protraction basically stable.The relapse tendency of ClassⅢis mainly due to the further growth of the mandible.
