摘要
目的研究双期矫治安氏Ⅱ类1分类错患者软组织侧貌的变化。方法选择20例以下颌后缩为主要表现的生长期安氏Ⅱ类1分类患者。Ⅰ期采用Twin-block矫治器,Ⅱ期采用直丝弓矫治技术,应用X线头影测量技术进行治疗前后软组织侧貌分析,并对测量结果进行配对t检验。结果患者治疗后前牙覆合、覆盖关系正常、磨牙关系恢复AngleⅠ类,侧貌明显改善。结论安氏Ⅱ类1类错患者在替牙期、恒牙早期采用双期矫治对患者软组织侧貌有较大改善,能够取得良好的矫治效果。
Objective To study the facial profile changes induced by two phase treatment for the Angle class Ⅱ division Ⅰmalocclusion. Methods Thirty children with Angle class Ⅱ division Ⅰmalocclusion and mainly with mandibular retrognathia were selected. Twin - block appliance and straight wire arch were used to correct the maloulasion in the first and second phases, respectively. Clinical effect was evaluated by cephalometric analysis before and after treatment. Results The anterior dental overbite and rhe molar relationship were back to normal after treatment and the facial profile of patients was improved. Conclusions Good efficacy is obtained by two - phase treatment of Angle class Ⅱ division Ⅰmaloccusion.
出处
《武警医学》
CAS
2009年第11期989-991,共3页
Medical Journal of the Chinese People's Armed Police Force
关键词
安氏Ⅱ错[牙合]
双期矫治
软组织侧貌
Angle class Ⅱdivision Ⅰmalocclusion Two- phase treatment Facial profile
