CAJ | 학술논문

目的：观察前方牵引器及下颌支抗颌间牵引两种方法矫正上颌切牙阻生的临床疗效。方法：选择患上颌中切牙埋伏倒置阻生的患者30例，经影像学诊断阻生程度相近的患牙30颗，随机分为A组（前方牵引器牵引组）和B组（和颌间牵引），每组15例，分别比较两组牵引时间与成功率，观察临床疗效。结果：A组牵引时间较B组延长，差异有统计学意义（P<0.05）；A矫正成功率为100%，B组为70%，差异有显著统计学意义（P<0.01）。结论：前方牵引器矫正上颌中切牙埋伏倒置阻生疗程较长，但安全有效。
목적：관찰전방견인기급하합지항합간견인량충방법교정상합절아조생적림상료효。방법：선택환상합중절아매복도치조생적환자30례，경영상학진단조생정도상근적환아30과，수궤분위A조（전방견인기견인조）화B조（화합간견인），매조15례，분별비교량조견인시간여성공솔，관찰림상료효。결과：A조견인시간교B조연장，차이유통계학의의（P<0.05）；A교정성공솔위100%，B조위70%，차이유현저통계학의의（P<0.01）。결론：전방견인기교정상합중절아매복도치조생료정교장，단안전유효。
Objective To investigate the effect of two orthodontic traction ways of inversely impacted maxillary central incisor-reverse pull headgear and intermaxillary traction. Methods 30 inversely impacted upper central incisors in 30 patients were selected.They were randomly divided into two groups according to the similar positions of the impacted upper central incisors in 3 dimensions.They were respectively treated with the two traction methods. The traction time and the success rate of the two groups was compared. SPSS17.0 software package was used for Chi-square and t test. Results The success rate among the reverse pull headgear objects was 60% compared with 100% among the intermaxillary traction ones. There was significant difference between the two groups(P<0.05). The reverse pull headgear objects showed significant increase in the duration of treating the impacted upper central incisors(P<0.01). Conclusion After flap operation, the success rate for orthodontic traction of an inversely impacted upper central incisor with reverse pull headgear is significantly higher, and the duration of treatment with reverse pull headgear is longer, compared to intermaxillary traction.