中华口腔正畸学杂志
中華口腔正畸學雜誌
중화구강정기학잡지
CHINESE JOURNAL OF ORTHODONTICS
2012年
3期
121-129
,共9页
阻生牙%磨牙%正畸矫治器设计%下颌
阻生牙%磨牙%正畸矯治器設計%下頜
조생아%마아%정기교치기설계%하합
Impacted tooth%Molar%Orthodontic appliance design%Mandibular
目的 探讨下颌第二、三磨牙并列阻生的正畸治疗方法,评估其效果.方法 选择下颌第二、第三磨牙并列阻生患者6例、共8对,拔除下颌阻生第三磨牙,采用固定矫治器结合磨牙带环焊多曲推簧直立装置,对水平阻生的第二磨牙进行竖直,使第二磨牙远中直立移动.结果 水平阻生第二磨牙全部被直立,达到正常的(牙合)平面,获得良好功能邻接关系及根平行.X线片示原阻生牙冠所占空间为正常牙槽骨组织所修复.下颌阻生磨牙竖直时间为5～14个月,平均为8.63个月.结论 在下颌第二、三磨牙并列阻生患者中,拔除下颌第三磨牙,有利于第二磨牙的直立.自制带环焊多曲推簧及粘接拉钩的磨牙竖直技术能有效地使水平阻生的第二磨牙产生快速的远中直立移动.
目的 探討下頜第二、三磨牙併列阻生的正畸治療方法,評估其效果.方法 選擇下頜第二、第三磨牙併列阻生患者6例、共8對,拔除下頜阻生第三磨牙,採用固定矯治器結閤磨牙帶環銲多麯推簧直立裝置,對水平阻生的第二磨牙進行豎直,使第二磨牙遠中直立移動.結果 水平阻生第二磨牙全部被直立,達到正常的(牙閤)平麵,穫得良好功能鄰接關繫及根平行.X線片示原阻生牙冠所佔空間為正常牙槽骨組織所脩複.下頜阻生磨牙豎直時間為5～14箇月,平均為8.63箇月.結論 在下頜第二、三磨牙併列阻生患者中,拔除下頜第三磨牙,有利于第二磨牙的直立.自製帶環銲多麯推簧及粘接拉鉤的磨牙豎直技術能有效地使水平阻生的第二磨牙產生快速的遠中直立移動.
목적 탐토하합제이、삼마아병렬조생적정기치료방법,평고기효과.방법 선택하합제이、제삼마아병렬조생환자6례、공8대,발제하합조생제삼마아,채용고정교치기결합마아대배한다곡추황직립장치,대수평조생적제이마아진행수직,사제이마아원중직립이동.결과 수평조생제이마아전부피직립,체도정상적(아합)평면,획득량호공능린접관계급근평행.X선편시원조생아관소점공간위정상아조골조직소수복.하합조생마아수직시간위5～14개월,평균위8.63개월.결론 재하합제이、삼마아병렬조생환자중,발제하합제삼마아,유리우제이마아적직립.자제대배한다곡추황급점접랍구적마아수직기술능유효지사수평조생적제이마아산생쾌속적원중직립이동.
Objective To assess the treatment method and outcome of horizontally impacted mandibular second molars.Methods Six patients with mandibular impacted second and third molars,including 8 horizontally impacted mandibular second molars,were treated with fixed appliance in conjunction with molar band soldered with pushing spring. Crowns of horizontally impacted mandibular second molars were moved distally and uprighted after impacted mandibular third molars were extracted.Results All horizontally impacted mandibular second molars were uprighted.Good occlusion and root parallel were also achieved.The panoramic radiographs revealed that uprighted mandibular second molars were surrounded by normal alveolar bone.Mean treatment period was 8.63 months (5 to 14 months).Conclusions The orthodontic molar uprighting technique was effective in uprighting and distalizing the horizontally impacted mandibular second molars.
