华西口腔医学杂志

• 临床研究 • 上一篇    下一篇

改良式Forsus矫治器治疗下颌后缩患者的疗效观察

叶  静,王春玲,刘东旭,郭  杰,张  凡   

  1. 山东大学口腔医院  正畸科,山东  济南 250012
  • 收稿日期:2006-06-25 修回日期:2006-06-25 出版日期:2006-06-20 发布日期:2006-06-20
  • 通讯作者: 王春玲, Tel: 0531-88382070
  • 作者简介:叶 静(1981-), 女, 山东人, 硕士研究生

Clinical Effect of Modified Forsus Appliance to Children with Mandibular Retrusion

YE Jing, WANG Chun-ling, LIU Dong-xu, GUO Jie, ZHANG Fan   

  1. Dept. of Orthodontics, College of Stomatology, Shandong University, Jinan 250012, China
  • Received:2006-06-25 Revised:2006-06-25 Online:2006-06-20 Published:2006-06-20

摘要:

 目的  观察改良式Forsus矫治器治疗下颌后缩患者的临床疗效。方法  18例下颌后缩患者在直丝弓矫治技术排齐整平上下牙列后,应用改良式Forsus矫治器进行功能性矫形治疗,并在治疗前后拍摄头颅侧位片,通过 SPSS 12.0统计学软件对治疗前后的测量结果进行配对 t 检验分析。结果  改良式Forsus矫治器治疗6—8个月后,18例患者的下颌均明显前移,下颌后缩面型显著改善。其中B点前移(2.9±3.1) mm,ANB角减小(2.5±1.2)°,前牙覆盖减小(5.0±2.8) mm,磨牙关系由远中关系改为中性关系,平面角增加(4.3±2.2)°,治疗前后的差异具有统计学意义(P<0.05)。结论  改良式Forsus矫治器与直丝弓矫治技术联合应用,可以有效地促进下颌骨的生长发育,协调上下颌骨的位置关系,改善Ⅱ类咬合关系和下颌后缩面型。

关键词:  改良式Forsus矫治器, 下颌后缩, 安氏Ⅱ类错

Abstract:

Objective To evaluate the effects of modified Forsus appliance in the treatment of Class Ⅱ mandibular retrusion. Methods 18 children with mandibular retrusion were selected and treated with modified Forsus appliance. Cephalometric radiographs were taken and analyzed at pre-treatment and post-treatment. Students′ t-test was used to determine if there were significant differences between pre-treatment and post-treatment. Results After 6-8 months of therapy, profiles were obviously improved. B moved forward(2.9±3.1)mm. ANB decreased(2.5±1.2)°. The overjet decreased(5.0+2.8) mm. The molar relationship was corrected to Class Ⅰ from ClassⅡ. SN-OL increased(4.3+2.2)°. There was significant difference between pre-treatment and post-treatment. Conclusion Combined with straight wire appliance, modified Forsus appliance can effectively stimulate the mandibular growth, balance the jaw relationship, and correct mandibular retrusion.

Key words: modified Forsus appliance, mandibular retrusion, Class Ⅱ malocclusion