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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10~13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20~24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。
Objective To observe the effect of Twin-block appliance on the correction of Class Ⅱ 1 malocclusion during growth and development and to explore the mechanism of correction. Methods 18 cases of growth and development of Class Ⅱ 1 malocclusion patients, 10 males and 8 females, aged 10 to 13 years old, no treatment history of patients with Twin-block appliance for orthodontic treatment. Results After 18 to 20 months of treatment, the coverage of anterior mandibular rectum was basically normal, the relationship between molars was neutral, and the appearance of soft tissue was improved obviously. Conclusion Twin-block appliance is effective in patients with Class Ⅱ 1 malocclusion during growth and development.