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目的比较头帽颏兜和双垫矫治器治疗恒牙初期非骨性安氏Ⅲ类错畸形的临床疗效。方法根据治疗方法的不同,将90例恒牙初期非骨性安氏Ⅲ类错畸形患儿分为A、B两组,各45例。A组应用改良式双垫矫治器,B组应用头帽颏兜进行治。结果两组患儿治疗后的上下颌骨及切牙位置均有显著改善,A组治疗后的ANB角度数显著大于B组,L1/NB、L1-NB值均显著小于B组,P<0.05。A组患儿家长的总满意率为82.22%(37/45),显著高于B组的64.44%(29/45),P<0.05。结论相比头帽颏兜,改良式双垫矫治器制作简便,治疗恒压初期非骨性安氏Ⅲ类错畸形的疗效更为显著,且患儿配合度好,具有重要的临床应用价值。
Objective To compare the clinical efficacy of headgear chin-pocket and double-pad appliance in the treatment of primary non-skeletal Class Ⅱ malocclusion. Methods According to the different treatment methods, 90 cases of primary non-skeletal Class Ⅱ malocclusion were divided into A and B groups, 45 cases in each group. A group with modified double pad appliance, B group with head cap chin pocket to rule. Results The position of the maxilla, mandible and incisors in both groups were significantly improved after treatment. The ANB angles in group A were significantly greater than those in group B, and the values of L1 / NB and L1-NB were significantly lower than those in group B (P <0.05) . The total satisfaction rate of parents in group A was 82.22% (37/45), significantly higher than 64.44% (29/45) in group B, P <0.05. Conclusions Compared with the headgear chin pocket, the improved two-pad appliance is simple and easy to manufacture. It is more effective in treating non-skeletal Class Ⅱ malocclusion with initial constant pressure, and has good coordination with children and has important clinical value.