摘要
目的评价改良式下颌唇挡矫治替牙期安氏Ⅱ类1分类错[牙合]的疗效。方法选取符合纳入标准的6名替牙期安氏Ⅱ类1分类错[牙合]患者，行改良式下颌唇挡结合上颌活动矫治器联合治疗，对治疗前、后x线头颅侧位片进行测量分析比较。结果治疗后磨牙中性关系，前牙覆盖覆[牙合]关系正常，面型改善，侧貌协调。结论改良式下颌唇挡可作用于双颌，破除不良唇习惯，协调上下颌功能，提高了正畸疗效。
Objective To evaluate the early treatment effects of improved mandibular lip bumper on patients with Angle Class Ⅱ, Division 1 malocclusion in mixed dentition. Methods According to inclusion criteria of the study, six patients with Angle Class Ⅱ, Division 1 malocclusion in mixed dentition were selected and treated with improved mandibular lip bumper and maxillary removable appliance. Cephalometrie analysis was performed before and after treatment. Results The improved appliance could stimulate the growth of mandible. After treatment, overjet and molar relationship improved. Conclusions The improved mandibular lip bumper can interrupt lip-biting and is helpful to achieve growth modification in treating Class Ⅱ ,Division 1 malocclusion.
出处
《中华口腔正畸学杂志》
2009年第3期155-158,共4页
Chinese Journal of Orthodontics
