Twin-block矫治器在安氏Ⅱ~1类错中的临床应用研究

目的观察Twin-block功能矫治器对于生长发育期安氏Ⅱ1类错的矫治作用,探讨其矫治机制。方法选择18例生长发育期的安氏Ⅱ1类错患者,男10例,女8例,年龄10¹3岁,无矫治史的患者使用Twin-block功能矫治器进行矫治。结果 18例患者经过2013岁,无矫治史的患者使用Twin-block功能矫治器进行矫治。结果 18例患者经过20²4个月的治疗后,前牙覆、覆盖关系基本正常,磨牙关系中性,软组织侧貌改善明显。结论 Twin-block功能矫治器对于生长发育期的安氏Ⅱ1类错患者效果明显。

Clinical application of Twin-block appliance in Angle class Ⅱ division l maloclussion

Objective To observe the correction of Angle＇s Ⅱ malocclusion in growth and development stages with Twin-block ap- pliances,and discuss the treatment mechanism. Methods Use Twin-block appliances for 18 cases of Angle＇s Ⅱ malocclusion in growth and development stages,10 male and 8 female,10 to 13 years old,with no history of malocclusion. Results After 20 to 24 months＇ treatment,the 18 patients＇ anterior tooth overbite, and covering relation were nearly normal, molar relationship was neutral, and lateral profile of soft tissue significantly improved. Conclusions Twin-blockappliances have obvious effect on Angle＇s Ⅱ malocclusion in growth and development stages