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选择恒牙初期安氏Ⅱ类Ⅰ分类下颌后缩病人 7例 ,应用Twinblock矫正器进行治疗。结果 ,经过 8～12个月的治疗 ,所有病例下颌后缩都得到矫正。结果提示Twinblock矫正器是矫正下颌后缩疗效肯定
Seven patients with mandibular retrusion who were classified as Class II ¢ ò in the early stage of permanent dentition were selected and treated with Twinblock orthotics. Results, after 8 to 12 months of treatment, all cases of mandibular retraction were corrected. The results suggest that Twinblock orthotic correction is correct mandibular reduction effect