天津医药

天津医药 ›› 2016, Vol. 44 ›› Issue (5): 617-620.doi: 10.11958/20150222

• 应用研究 • 上一篇    下一篇

安氏Ⅱ1类错牙合畸形患者拔牙矫治前后软硬组织变化的研究

颜彦 1， 王建国 2， 张淋坤 2   

  1. 1天津医科大学研究生院 （邮编 300070）； 2天津市口腔医院
  • 收稿日期:2015-10-14 修回日期:2015-12-14 出版日期:2016-05-15 发布日期:2016-05-18
  • 作者简介:颜彦 （1989）， 女， 硕士在读， 主要从事口腔正畸学方面研究
  • 基金资助:
    国家临床重点专科建设项目 （口腔正畸专业） 基金资助 （2013544）

Changes of soft and hard tissues of patients with Angle class Ⅱ division I malocclusion following orthodontic treatment with extraction

YAN Yan1, WANG Jianguo2, ZHANG Linkun2   

  1. 1 Graduate School of Tianjin Medical University, Tianjin 300070, China; 2 Tianjin Stomatological Hospital
  • Received:2015-10-14 Revised:2015-12-14 Published:2016-05-15 Online:2016-05-18

PDF (PC)

4310

摘要： 摘要:目的 采用直丝弓矫治技术治疗安氏Ⅱ1类成人错牙合畸形患者， 探讨减数治疗前后软硬组织变化的情况及 相关性。方法 选取 50 例采用 MBT 直丝弓矫治技术并减数双侧上下第一双尖牙的成年安氏Ⅱ1类错牙合畸形患者。 拍摄 50 例患者矫治前后的头颅定位侧位片并进行头影测量， 采用配对 t 检验和 Pearson 相关分析以评价矫治前后软 硬组织的变化情况。结果 正畸减数治疗后， 成年患者上下前牙突度和倾斜度明显减小， 上下唇部突度减小， 深覆 牙合深覆盖得到纠正， 开唇露齿得到明显改善； 软组织变现为鼻唇角增大， 颏沟倾角增大， 颏厚增加及上下唇软组织相 对于 E 线的位置改变。结论 安氏Ⅱ1类成人错牙合畸形患者采用减数治疗矫治后可有效地恢复正常覆牙合覆盖， 改善 Ⅱ1类患者略突的软组织面型。

关键词: 正畸学, 错牙合, 安氏Ⅱ类, 摄影测量法, 放射摄影术, 牙科, 软硬组织改变

Abstract: Abstract:Objective To investigate changes in craniomaxillofacial soft and hard tissues following orthodontic treatment by MBT edgewise technique with fix appliance in patients with Angle class Ⅱ division Ⅰ malocclusion. Methods Fifty patients with Angle class Ⅱ division Ⅰ malocclusion were selected in this study. All patients were treated with MBT edgewise technique. Cephalometrics tracings were performed before treatment and after treatment. Cephalometrics measurements were statistically analysed by t-test. Results After the orthodontic treatment, the main changes were the reduction of maxillary and mandibular prominence and the increasement of the Pg′B′-FH and Pog-Pog′ and upper-lower prominence as well. The appearance of uncovered teeth by their lips was obviously improved. The changes of soft issue profile are the increment of nasolabial angle and the changes among UL-U1, LL-L1 and the E-line. Conclusion Patients with Angle class Ⅱ division Ⅰ malocclusion have normal overjet and overbite, and also have a better appearance of soft tissue after the extraction treatment.

Key words: orthodontics, malocclusion, angle class Ⅱ, photogrammetry, radiography, dental, changes of soft and hard tissue profile