实用口腔医学杂志
實用口腔醫學雜誌
실용구강의학잡지
JOURNAL OF PRACTICAL STOMATOLOGY
2015年
1期
92-95
,共4页
牙根吸收%滑动法%关闭曲法
牙根吸收%滑動法%關閉麯法
아근흡수%활동법%관폐곡법
Root resorption%Sliding technique%T loop technique
目的：比较关闭曲法和滑动法对牙根吸收的影响。方法：随机选取利用 MBT 直丝弓矫治技术治疗的安氏 I 类错畸形拔牙病例90例，其中关闭曲法45例，滑动法45例，治疗前后拍摄全颌曲面断层片和根尖片，用根吸收分级评估法记录其矫治前后全口牙根吸收的情况，统计分析。结果：在正畸治疗后关闭曲法和滑动法的牙根吸收发生率无显著差异（P ＞0．05），2种方法在治疗后的牙根吸收发生率都增大（P ＜0．05）。牙根吸收主要发生在上下颌切牙，下颌牙较上颌牙多见（P＞0．05）。结论：关闭曲法和滑动法在安氏 I 类错矫治拔牙病例中对牙根吸收的影响无差别。
目的：比較關閉麯法和滑動法對牙根吸收的影響。方法：隨機選取利用 MBT 直絲弓矯治技術治療的安氏 I 類錯畸形拔牙病例90例，其中關閉麯法45例，滑動法45例，治療前後拍攝全頜麯麵斷層片和根尖片，用根吸收分級評估法記錄其矯治前後全口牙根吸收的情況，統計分析。結果：在正畸治療後關閉麯法和滑動法的牙根吸收髮生率無顯著差異（P ＞0．05），2種方法在治療後的牙根吸收髮生率都增大（P ＜0．05）。牙根吸收主要髮生在上下頜切牙，下頜牙較上頜牙多見（P＞0．05）。結論：關閉麯法和滑動法在安氏 I 類錯矯治拔牙病例中對牙根吸收的影響無差彆。
목적：비교관폐곡법화활동법대아근흡수적영향。방법：수궤선취이용 MBT 직사궁교치기술치료적안씨 I 류착기형발아병례90례，기중관폐곡법45례，활동법45례，치료전후박섭전합곡면단층편화근첨편，용근흡수분급평고법기록기교치전후전구아근흡수적정황，통계분석。결과：재정기치료후관폐곡법화활동법적아근흡수발생솔무현저차이（P ＞0．05），2충방법재치료후적아근흡수발생솔도증대（P ＜0．05）。아근흡수주요발생재상하합절아，하합아교상합아다견（P＞0．05）。결론：관폐곡법화활동법재안씨 I 류착교치발아병례중대아근흡수적영향무차별。
Objective:To Compare root resorption between T loop technique and sliding technique of orthodontic treatment.Meth-ods:90 patients with Angle class I malocclusion were orthodontically treated by MBT fixed appliances with T loop technique(n =45) and sliding technique(n =45)respectively.Root resorption of the patients were examined by grading evaluation method with orthopan-tomography and periapical films before and after orthodontic treatment.Results:After orthodontic treatment the tooth root resorption rate increased(P <0.05),the root resorption rate was not significantly different between T loop technique group and sliding technique group(P >0.05).Root resorption mostly occurred in the incisors,especially in mandibular tooth.Conclusion:There is no difference of the effect of root resorption between T loop technique and sliding technique of orthodontic treatment in patients with Angle class I malocclusion.
