中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (12): 2207-2211.doi: 10.3969/j.issn.1673-8225.2012.12.027

• 生物材料临床实践 clinical practice of biomaterials • 上一篇    下一篇

Damon-Ⅲ自锁托槽矫治安氏Ⅱ类2分类错牙合畸形患者下颌位置及面部比例的变化*

张  勤1，陈  曦2，祝  军1，刘  红1   

  1. 1新疆医科大学附属中医医院口腔科,新疆维吾尔自治区乌鲁木齐市  830000；2西安交通大学第一附属医院口腔科，陕西省西安市  710061
  • 收稿日期:2011-12-14 修回日期:2012-01-15 出版日期:2012-03-18 发布日期:2012-03-18
  • 通讯作者: 陈曦，博士，硕士生导师，西安交通大学第一附属医院口腔科，陕西省西安市 710061 chen168_xi@ 163.com
  • 作者简介:张勤，女，1965年生，陕西省乾县人，汉族，1990年西安医科大学毕业，副主任医师，主要从事口腔正畸专业及口腔基础研究。 1178257715@ qq.com
  • 基金资助:

    陕西省科技计划项目(2010K15-04-04)。

Changes of mandibular position and facial ratio of patients with angle class Ⅱ division 2 malocclusion by Damon-Ⅲ self-locking brackets technique  

Zhang Qin1, Chen Xi2, Zhu Jun1, Liu Hong1   

  1. 1Department of Stomatology, Affiliated Chinese Medicine Hospital of Xinjiang Medical University, Urumqi  830000, Xinjiang Uygur Autonomous Region, China; 2Department of Stomatology, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an  710061, Shaanxi Province, China
  • Received:2011-12-14 Revised:2012-01-15 Online:2012-03-18 Published:2012-03-18
  • Contact: author: Chen Xi, Doctor, Master’s supervisor, Department of Stomatology, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China chen168_xi@ 163.com
  • About author:Zhang Qin, Associate chief physician, Department of Stomatology, Affiliated Chinese Medicine Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China 1178257715@ qq.com
  • Supported by:

    Science and technology Projects in Shaanxi Province, No.2010K15-04-04*

PDF

730

摘要：

背景：自锁托槽直丝弓矫治技术是一种低摩擦轻力矫治技术，其无需结扎的自锁托槽与高性能的弹性弓丝的结合使用，带来了临床的高效矫治和固定正畸技术革命性的改变。
目的：探讨Damon-Ⅲ自锁托槽矫治技术治疗安氏Ⅱ类2分类错牙合畸形患者治疗前后的硬组织变化。
方法：选择采用Damon-Ⅲ自锁托槽矫治技术和Roth直丝弓矫治技术治疗的安氏Ⅱ类2分类错牙合畸形患者各13例，治疗前后拍摄患者头颅侧位X线片并进行测量。
结果与结论：Damon-Ⅲ自锁组和Roth直丝组治疗后蝶鞍点-鼻根点-上牙槽座点角增大，下牙槽座点角减小，说明治疗后上下颌矢状向的不调得到了纠正；治疗后与自锁组比较，直丝组下颌有顺时针旋转趋势，下后牙升高量不明显(P < 0.05)，下前牙唇倾较明显(P < 0.05)。提示Damon-Ⅲ自锁托槽配合平面导板+Ⅱ类牵引引起下颌及面部比例的改变比直丝弓托槽配合平面导板+Ⅱ类牵引更明显，在下前牙唇倾度上有良好的控制。

关键词: 自锁托槽, 安氏Ⅱ类2分类错牙合畸形, 头影测量, 矫治技术, 上下颌

Abstract:

BACKGROUND: Self-locking brackets straight wire appliance is a kind of low fraction and light force correction technique. The combination of self-locking brackets without ligation and high-performance elastic arch wire provide revolutionary change of the efficient correction and fixed orthodontic technique on the clinical treatment.  
OBJECTIVE: To investigate the changes of mandibular position and facial ratio of patients with angle class Ⅱ division 2 malocclusion by Damon-Ⅲ self-locking brackets technique.
METHODS: The sample was consisted of 13 patients with angle class Ⅱ division 2 malocclusion treated by traditional Roth straight wire appliance and 13 patients with angle class Ⅱ division 2 malocclusion treated by Damon-Ⅲ self-locking brackets technique. The pre-and after-treatment cephalometric films were measured to assess the treatment effect.
RESULTS AND CONCLUSION: After treatment, the sella-nasion-point A (SNA) angle was increased in Damon-Ⅲ self-locking brackets group and Roth straight wire appliance group, and the sella-nasion-point B (SNB) angle was decreased. It indicated that the mandible in two groups changed significantly in sagittal direction, and had the trend to increase in vertical. Compared with the self-locking brackets group after treatment, the lower mandible had the clockwise trend and the increasing of the mandibular posterior alveolar was not obvious (P < 0.05), the lower incisors inclined was obvious (P < 0.05). The study showed that the changes of the lower mandible and facial proportion caused by the Damon-Ⅲ self-locking brackets combined with occlusal guide plate+Class Ⅱ traction was more obvious than the changes caused by Roth straight wire appliance combined with occlusal guide plate+Class Ⅱ traction, and had the favorable regulation on the lower incisors inclination.

中图分类号: