论文部分内容阅读
目的探讨正畸矫治儿童上颌牙齿前突方法及矫治前后的牙关系与侧貌变化。方法通过对35例患者头颅X线侧位片及记存模型,对软组织面型特征及硬组织指标进行分析,探讨错牙合产生机制,并进行矫治方案制定,减数拔除双侧上颌第一双尖牙齿,使用方丝弓矫治器对牙齿进行矫治。结果正畸矫治前后上颌前牙突度发生变化,前突上牙内收,前牙覆牙合覆盖关系正常,软组织凸面型改善。结论上颌牙齿前突减数矫治,有助于上颌和上牙弓的突度减小,使软硬组织面型之间的形态结构一致,尤其是对上牙弓突度的改善比较显著及持续的。
Objective To investigate the methods of orthodontic treatment of maxillary teeth anterior process in children and correction of tibialis before and after correction. Methods The craniofacial X-ray films and memory model of 35 patients were used to analyze the soft tissue surface features and hard tissue indexes to explore the mechanism of malocclusion. The correction protocol was established and the maxillary first maxillary first Bicuspida, the use of square wire appliance orthodontic treatment of teeth. Results Before and after orthodontic treatment, the maxillary anterior teeth ’s degree of protrusion changed. The anterior maxillary adduction and anterior teeth covered the obturator and the occlusion was normal, and the convexity of the soft tissue was improved. Conclusions Minimal correction of maxillary protrusion can help to reduce the maxillary and superior dental arch protrusion, and make the shape and structure of the soft and hard tissue surface consistent, especially for the improvement of the maxillary arch protrusion. of.