CAJ | 학술논문

目的：探讨种植支抗配合摇椅弓矫治双颌前突畸形的临床效果。方法本研究共12例双颌前突患者,均拔除4个第一前磨牙直丝弓固定矫治,应用摇椅弓配合种植支抗矫治内收上下颌切牙完成矫治。矫治前后头影测量分析对比。结果12例患者获得成功矫治,上下切牙明显内收：上中切牙唇倾度U1-SN平均减少12.92°,上中切牙与NA角度U1-NA平均减少13.08°,距离U1-NA(mm)平均减少5.62 mm,下中切牙唇倾度L1-MP平均减少12.75°,下中切牙与NB角度L1-NB角度平均减少12.82°,距离L1-NB(mm)平均减少5.19 mm,变化均具有统计学意义(P<0.01)；软组织侧貌明显改善：鼻唇角NLA平均增加9.24°,EP-UL平均减少2.82 mm,EP-LL平均减少2.62 mm,变化均具有统计学意义(P<0.01)；MPA,OP-FH没有明显变化(P>0.05)。结论微种植支抗配合摇椅弓可以有效矫治双颌前突畸形。
목적：탐토충식지항배합요의궁교치쌍합전돌기형적림상효과。방법본연구공12례쌍합전돌환자,균발제4개제일전마아직사궁고정교치,응용요의궁배합충식지항교치내수상하합절아완성교치。교치전후두영측량분석대비。결과12례환자획득성공교치,상하절아명현내수：상중절아진경도U1-SN평균감소12.92°,상중절아여NA각도U1-NA평균감소13.08°,거리U1-NA(mm)평균감소5.62 mm,하중절아진경도L1-MP평균감소12.75°,하중절아여NB각도L1-NB각도평균감소12.82°,거리L1-NB(mm)평균감소5.19 mm,변화균구유통계학의의(P<0.01)；연조직측모명현개선：비진각NLA평균증가9.24°,EP-UL평균감소2.82 mm,EP-LL평균감소2.62 mm,변화균구유통계학의의(P<0.01)；MPA,OP-FH몰유명현변화(P>0.05)。결론미충식지항배합요의궁가이유효교치쌍합전돌기형。
Objective To investigate the clinical effects of implant anchorages with rocking-chair archwire in the treatment of bimaxil-lary protrusion. Methods 12 cases of bimaxillary dental protrusion patients were chosen. Four first premolars of all cases were removed, and they were treated with implant anchorages and rocking-chair archwire in order to adduct maxillary and mandibular incisors. Cephalo-metric indicators changes before and after the treatment were compared. Results 12 patients were successful treated with their incisors retracted significantly (P<0. 01):the mean reduction of U1-SN,U1-NA,U1-NA (mm),L1-MP,L1-NB,and L1-NB (mm) was 12. 92°, 13. 08°,5. 62 mm,12. 75°,12. 82°,and 5. 19 mm,respectively. Soft tissue profile improved significantly (P<0. 01):NLA averagely in-creased 9. 24°,EP-UL averagely reduced 2. 82 mm,EP-LL averagely reduced 2. 62 mm. MPA and OP-FH didn′t change significantly (P>0. 05). Conclusions Micro-implant anchorage with rocking-chair archwire can effectively treat bimaxillary protrusion.