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目的探讨镍钛(NiTi)摇椅弓附加前牙区垂直牵引对前牙开畸形的治疗效果。方法利用NiTi摇椅弓加前牙区垂直牵引对2007—2009年在厦门市第一医院思明分院口腔科就诊的18例前牙开畸形患者进行矫治,并对矫治前后的头颅侧位片进行测量分析。结果 X线头影测量显示治疗后骨骼无显著变化,下切牙伸长,下磨牙压低,上切牙及上下后牙竖直,上颌平面有顺时针旋转的趋势,下颌平面有逆时针旋转的趋势。开间隙关闭,前后牙建立良好的咬合关系,所有病例治疗后均取得满意疗效。结论 NiTi摇椅弓加前牙区垂直牵引是治疗前牙开的有效方法。
Objective To investigate the therapeutic effect of NiTi rocking chair arch with vertical traction of anterior teeth on anterior open deformity. Methods 18 cases of anterior deformity patients with anterior teeth deformity treated by NiTi rocking bow plus anterior teeth area vertical traction during 2007-2009 in Siming Branch of the First Hospital of Xiamen City were treated. Measurement and analysis. Results X-ray cephalometry showed no significant changes in the bone after treatment, lower incisor elongation, lower molar pressure, upper incisors and upper and lower posterior teeth vertical, mandibular plane clockwise rotation of the mandibular plane counterclockwise rotation trend. Opened the gap closed, anteroposterior teeth to establish a good occlusion relationship, all cases have achieved satisfactory results after treatment. Conclusion NiTi rocking bow plus vertical traction of anterior teeth area is an effective method for treating anterior teeth opening.