摘要
【目的】评价肌激动器矫治AngleⅡ类1分类错治疗前后颌面部硬组织变化情况,探讨其作用机理和效果。【方法】对30例处于生长发育高峰期的AngleⅡ类1分类错畸形的患者用肌激动器矫治,对矫治前后X线头影测量片的17个硬组织测量项目进行分析,对比治疗前后硬组织测量指标的变化。【结果】通过早期的功能矫治治疗,大多数患者在治疗后X线头影测量指标接近正常值范围。下颌骨长度增加,上切牙内收,前牙覆盖减少。【结论】大多数患者在矫治后X线头影测量值接近正常,下颌骨长度增加,但部分患者仍需进行二期治疗。
[Objective] To evaluate the facial hard tissue changes of patients with Angle Class Ⅱ division 1 malocclusion treated by activator and discuss the activator function. [Methods] 30 patients on the growing stage with Angle Class Ⅱ division 1 malocclusion were treated by the Activator. 17 cephalograms measurement indexes of every patients were traced on preand post - treatment to analyze the changes of the cephalograms. [Results] The indexes of the most patients tended to be normal after early treatment. The length of the mandibular increased, the upper incisors retracted and the overjet decreased. [Conclusions] The indexes of most patients with Angle Class Ⅱ division 1 malocclusion access to be normal after treatment. The length of the mandibular increased, but, second stage treatment was still required for some patients.
出处
《武警医学院学报》
CAS
2007年第3期281-284,共4页
Acta Academiae Medicinae CPAPF
