Abstract

目的 结合临床病例探讨安氏Ⅰ类拥挤伴下颌融合牙的临床处理,以期获得比较有效的处理下颌融合牙病例的常用治疗方法.方法 收集本科近三年来临床上安氏Ⅰ类拥挤拌下颌前牙有融合牙者12例(男5例,女7例),根据牙弓的拥挤程度,面型突度、患者主观要求等,决定是采用拔牙或非拔牙的矫治方案,再通过计算Bolton指数的前牙比和全牙比,确定如何拔牙以及如何邻面去釉.结果 根据不同的适应证,分别采用不同的矫治设计方法 :非拔牙矫治患者,主要采用上颌邻面去釉的方法 ,磨去的量主要以Bolton指数来指导;拔牙病例中,多采用上下颌非对称拔牙(上颌两颗,下颌一颗),再通过计算Bolton指数来适当行下颌下齿的领面去釉.最后所有患者均获得满意的临床矫治效果.结论 对于安氏Ⅰ数拥挤伴下颌融合牙患者,根据其临床条件可选择拔牙或非拔牙的矫治方案,两者均可取得健康,美观的临床疗效。

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