中华口腔正畸学杂志
中華口腔正畸學雜誌
중화구강정기학잡지
CHINESE JOURNAL OF ORTHODONTICS
2011年
3期
125-129
,共5页
安氏Ⅱ1错(牙合)%Tip-Edge Plus技术%直丝弓技术
安氏Ⅱ1錯(牙閤)%Tip-Edge Plus技術%直絲弓技術
안씨Ⅱ1착(아합)%Tip-Edge Plus기술%직사궁기술
Class Ⅱ division 1 malocclusion%Tip-Edge Plus technique%straight wire technique
目的 探讨Tip-Edge Plus差动直丝弓技术和直丝弓技术治疗伴有重度深覆(牙合)和深覆盖的安氏Ⅱ1分类错(牙合)畸形疗效的异同.方法样本包括恒牙初期伴有重度深覆(牙合)和深覆盖的安氏Ⅱ1错(牙合)畸形患者46例,Tip-Edge Plus组23例,使用Tip-Edge差动直丝弓技术治疗；MBT直丝弓组23例使用直丝弓技术结合口外弓强支抗治疗.治疗前后拍摄头颅侧位片并测量,进行成组设计和配对设计t检验.结果两组患者治疗中上下颌骨、前牙突度、覆(牙合)、覆盖、软组织变化量差异无统计学意义(P＞0.05)；Tip-Edge Plus组L1-MP减小2.97 mm,L1/MP增加1.87°,L1/NB增加2.02°；MBT直丝弓组L1-MP减小0.50 mm,L1/MP减小3.88°,L1/NB减小6.88°,两组差异有统计学意义(P＜0.05).结论未使用额外支抗的Tip-Edge Plus差动直丝弓技术和使用强支抗的直丝弓技术治疗恒牙初期严重安氏Ⅱ1病例能取得相似的软硬组织效果；Tip-Edge Plus技术比直丝弓技术能更多的压低下前牙,治疗后Tip-Edge Plus组下切牙唇倾度比直丝弓技术组稍大.
目的 探討Tip-Edge Plus差動直絲弓技術和直絲弓技術治療伴有重度深覆(牙閤)和深覆蓋的安氏Ⅱ1分類錯(牙閤)畸形療效的異同.方法樣本包括恆牙初期伴有重度深覆(牙閤)和深覆蓋的安氏Ⅱ1錯(牙閤)畸形患者46例,Tip-Edge Plus組23例,使用Tip-Edge差動直絲弓技術治療；MBT直絲弓組23例使用直絲弓技術結閤口外弓彊支抗治療.治療前後拍攝頭顱側位片併測量,進行成組設計和配對設計t檢驗.結果兩組患者治療中上下頜骨、前牙突度、覆(牙閤)、覆蓋、軟組織變化量差異無統計學意義(P＞0.05)；Tip-Edge Plus組L1-MP減小2.97 mm,L1/MP增加1.87°,L1/NB增加2.02°；MBT直絲弓組L1-MP減小0.50 mm,L1/MP減小3.88°,L1/NB減小6.88°,兩組差異有統計學意義(P＜0.05).結論未使用額外支抗的Tip-Edge Plus差動直絲弓技術和使用彊支抗的直絲弓技術治療恆牙初期嚴重安氏Ⅱ1病例能取得相似的軟硬組織效果；Tip-Edge Plus技術比直絲弓技術能更多的壓低下前牙,治療後Tip-Edge Plus組下切牙脣傾度比直絲弓技術組稍大.
목적 탐토Tip-Edge Plus차동직사궁기술화직사궁기술치료반유중도심복(아합)화심복개적안씨Ⅱ1분류착(아합)기형료효적이동.방법양본포괄항아초기반유중도심복(아합)화심복개적안씨Ⅱ1착(아합)기형환자46례,Tip-Edge Plus조23례,사용Tip-Edge차동직사궁기술치료；MBT직사궁조23례사용직사궁기술결합구외궁강지항치료.치료전후박섭두로측위편병측량,진행성조설계화배대설계t검험.결과량조환자치료중상하합골、전아돌도、복(아합)、복개、연조직변화량차이무통계학의의(P＞0.05)；Tip-Edge Plus조L1-MP감소2.97 mm,L1/MP증가1.87°,L1/NB증가2.02°；MBT직사궁조L1-MP감소0.50 mm,L1/MP감소3.88°,L1/NB감소6.88°,량조차이유통계학의의(P＜0.05).결론미사용액외지항적Tip-Edge Plus차동직사궁기술화사용강지항적직사궁기술치료항아초기엄중안씨Ⅱ1병례능취득상사적연경조직효과；Tip-Edge Plus기술비직사궁기술능경다적압저하전아,치료후Tip-Edge Plus조하절아진경도비직사궁기술조초대.
Objective To compare the outcomes of Class Ⅱ patients with severe deep overbite and overjet corrected with Tip-Edge Plus and straight wire techniques.Methods The sample comprised 46 Class Ⅱ patients with severe overbite and overjet in the early permanent dentition.Twenty-three patients were treated with Tip-Edge Plus technique and the other 23 patients were treated with straight wire technique.Lateral cephalometric radiographs were taken before and after treatment.Computerized cephalometric analysis was carried out.Paired t tests and Student's t-tests were performed.Results Both techniques produced significant changes in overbite,overjet and profile.No significant differences between both techniques were found except the position of the lower incisors,the lower incisors were intruded 2.97mm and protruded 1.87°with reference to mandibular plane in Tip-Edge Plus group,while in straight wire group lower incisors were intruded 0.50mm and retroclined 3.88°.Conclusions Class Ⅱ patients with severe deep overbite and overjet could be treated successfully with straight wire and Til-Edge Plus techniques.Lower incisors were intruded more in the Tip-Edge Plus group and uprighted more in the straight wire group.
