摘要
目的观察改良摆式矫治器的临床应用效果。方法应用改良摆式矫治器对12例(骨性Ⅰ类,牙性Ⅱ类)安氏Ⅱ类错畸形患者进行治疗,其中男性5例,女性7例,年龄10～13岁。通过X线头影测量及模型观测比较治疗前、后上颌第一磨牙、第一前磨牙、中切牙的近远中变化,及磨牙区牙弓宽度的变化。结果上颌第一磨牙平均向远中移动5.3mm,第一前磨牙平均前移了2.5mm,切牙平均前移了3.3mm,与治疗前比较差异均有统计学意义(P<0.05);磨牙宽度平均缩小了0.2mm,与治疗前比较差异无统计学意义(P>0.05)。结论在适应证选择较好的情况下,单独使用改良摆式矫治器效率高、效果好,属于非患者依赖型矫治器,对于因磨牙前移造成的安氏Ⅱ类错畸形患者,有着良好的矫治效果。
Objective To study the clinical outcome of the modified pendulum appliance. Methods Twelve class Ⅱ malocclusion patients (Angle class Ⅱ and skeletal class Ⅰ),7 females and 5 males,were selected as the subjects,aged from 10 to 13 years.All the patients were treated with modified Pendulum appliance.The moved molars,premolar,incisors and the width of upper arch of each patient were examined.Cephalomatric and model analysis was used.Results The frist upper molar was distalized by 5.3 mm per side with mainly tilting movement,The first upper premolar moved mesially by 2.5 mm.The incisor moved mesially by 3.3 mm.The width of upper arch was decreased by 0.2 mm at molar but there were no significant difference between before treatment and after treatment.Conclusion The modified Pendulum appliance can distalize the upper molars effectively without patients active cooperation.It is effective in treating the patients with Angle's Ⅱ malocclusion caused by molars anterior moving.
出处
《河北医科大学学报》
CAS
2009年第9期920-922,共3页
Journal of Hebei Medical University
关键词
正畸矫正器
磨牙
治疗结果
orthodontic appliances
molar
treatment outcome
