中华口腔正畸学杂志
中華口腔正畸學雜誌
중화구강정기학잡지
CHINESE JOURNAL OF ORTHODONTICS
2015年
1期
15-19
,共5页
高角%安氏Ⅱ1错(牙合)%拔牙%直丝弓矫治器%细丝弓技术
高角%安氏Ⅱ1錯(牙閤)%拔牙%直絲弓矯治器%細絲弓技術
고각%안씨Ⅱ1착(아합)%발아%직사궁교치기%세사궁기술
High angle%Angle Class Ⅱ Division 1%Extraction%Straight archwire appliance%Light archwire technique
目的 通过细丝弓技术在高角安氏Ⅱ类1分类拔牙患者直丝弓矫治中的应用,探讨其矫治前后软硬组织的变化,为临床正畸设计和矫治提供参考.方法 本研究采用回顾性的研究方法,以符合纳入标准的17例正畸患者为研究对象矫治前后拍摄头颅侧位定位片,对头影测量结果应用SPSS15.0软件进行统计分析.结果 17例高角安氏Ⅱ类1分类错(牙合)患者矫治结束后,磨牙和尖牙关系中性,覆(牙合)覆盖正常.正畸治疗后矢状向ANB角减小1.18°,U1-NA角减小19.13°,L1-NB角减小6.42°,L1-MP角减小5.28°,颏突度增加0.46mm,颏倾斜度减小3.99°,有统计学意义.垂直向OP-MP角减小0.19°,L6-MP距增加0.98 mm,有统计学意义,而上、下颌切牙和上磨牙垂直变化无统计学意义.矫治后软组织侧貌明显改善,面型角减小4.56°,鼻唇角增加16.48°,上、下唇突点距离审美平面减小4.93 mm和3.99 mm,PosB’-FH角增加6.88°,有统计学意义.结论 高角安氏Ⅱ类1分类患者拔除四颗第一双尖牙,采用直丝弓矫治器矫治,矫治过程中应用细丝弓矫治技术可以对患者矢状向和垂直向达到良好的支抗控制,矫治后软组织侧貌明显改善.
目的 通過細絲弓技術在高角安氏Ⅱ類1分類拔牙患者直絲弓矯治中的應用,探討其矯治前後軟硬組織的變化,為臨床正畸設計和矯治提供參攷.方法 本研究採用迴顧性的研究方法,以符閤納入標準的17例正畸患者為研究對象矯治前後拍攝頭顱側位定位片,對頭影測量結果應用SPSS15.0軟件進行統計分析.結果 17例高角安氏Ⅱ類1分類錯(牙閤)患者矯治結束後,磨牙和尖牙關繫中性,覆(牙閤)覆蓋正常.正畸治療後矢狀嚮ANB角減小1.18°,U1-NA角減小19.13°,L1-NB角減小6.42°,L1-MP角減小5.28°,頦突度增加0.46mm,頦傾斜度減小3.99°,有統計學意義.垂直嚮OP-MP角減小0.19°,L6-MP距增加0.98 mm,有統計學意義,而上、下頜切牙和上磨牙垂直變化無統計學意義.矯治後軟組織側貌明顯改善,麵型角減小4.56°,鼻脣角增加16.48°,上、下脣突點距離審美平麵減小4.93 mm和3.99 mm,PosB’-FH角增加6.88°,有統計學意義.結論 高角安氏Ⅱ類1分類患者拔除四顆第一雙尖牙,採用直絲弓矯治器矯治,矯治過程中應用細絲弓矯治技術可以對患者矢狀嚮和垂直嚮達到良好的支抗控製,矯治後軟組織側貌明顯改善.
목적 통과세사궁기술재고각안씨Ⅱ류1분류발아환자직사궁교치중적응용,탐토기교치전후연경조직적변화,위림상정기설계화교치제공삼고.방법 본연구채용회고성적연구방법,이부합납입표준적17례정기환자위연구대상교치전후박섭두로측위정위편,대두영측량결과응용SPSS15.0연건진행통계분석.결과 17례고각안씨Ⅱ류1분류착(아합)환자교치결속후,마아화첨아관계중성,복(아합)복개정상.정기치료후시상향ANB각감소1.18°,U1-NA각감소19.13°,L1-NB각감소6.42°,L1-MP각감소5.28°,해돌도증가0.46mm,해경사도감소3.99°,유통계학의의.수직향OP-MP각감소0.19°,L6-MP거증가0.98 mm,유통계학의의,이상、하합절아화상마아수직변화무통계학의의.교치후연조직측모명현개선,면형각감소4.56°,비진각증가16.48°,상、하진돌점거리심미평면감소4.93 mm화3.99 mm,PosB’-FH각증가6.88°,유통계학의의.결론 고각안씨Ⅱ류1분류환자발제사과제일쌍첨아,채용직사궁교치기교치,교치과정중응용세사궁교치기술가이대환자시상향화수직향체도량호적지항공제,교치후연조직측모명현개선.
Objective To investigate the soft and hard tissue changes in Class Ⅱ Division 1 high angle extraction cases treated by light archwire technique with straight archwire appliance.Methods Seventeen Class Ⅱ Division 1 patients with high angle who met the including criteria were included into this retrospective study.Cephalometrics of pre and post treatment lateral films were traced by hands and its statistical analysis was performed via SPSS 15.0 software package.Results After treatment of the seventeen subjects,molar and cuspid relationships were Class Ⅰ and normal overjet and overbite were established.ANB and U1-NA decreased by 1.18°and 19.13°respectively.L1-NB and L1-MP decreased by 6.42° and 5.28°.OP-MP and tilt angle of chin decreased by 0.19°and 3.99°.Prominence of chin increased by 0.46 mm.L6-MP increased by 0.98mm.These changes were statistical significant.However,vertical changes for incisors and upper molar showed no significant changes.Remarkable soft tissue change was noted after orthodontic treatment.FCA decreased by 4.56° and NLA increased by 16.48°.The prominence of upper and lower lips to aesthetic plane decrease by 4.93 mmand 3.99 mm.PosB'-FH increased by 6.88°.These changes showed statistical significance.Conclusions The Class Ⅱ Division 1 patients who were treated by light archwire technique with straight archwire appliance could get good control of the vertical dimension in high angle cases after four first premolars extraction and the profile could be improved significantly.
