中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (13): 2307-2310.doi: 10.3969/j.issn.1673-8225.2010.13.008

• 数字化骨科 digital orthopedics • 上一篇    下一篇

颊侧多曲簧矫治器在开闭口运动中的三维力值变化

苗  楠1，侯  录1，徐实谦2   

  1. 1哈尔滨医科大学口腔正畸科，黑龙江省哈尔滨市  150086；2哈尔滨工业大学，黑龙江省哈尔滨市 150001
  • 出版日期:2010-03-26 发布日期:2010-03-26
  • 通讯作者: 侯 录，主任医师，哈尔滨医科大学口腔正畸科，黑龙江省哈尔滨市 150086 houlu@hotmail.com
  • 作者简介:苗 楠★，女，1983年生，黑龙江省哈尔滨市人，汉族，哈尔滨医科大学在读硕士，主要从事颊侧多曲簧矫治器的三维力值研究。 nannanonly@hotmail.com

Three-dimensional forces of Buccal multiloop appliance in the mouth opening and closing movement

Miao Nan1, Hou Lu1, Xu Shi-qian2   

  1. 1 Department of Orthodontics, Harbin Medical University, Harbin   150086, Heilongjiang Province, China; 2 Harbin Institute of Technology, Harbin   150001, Heilongjiang Province, China
  • Online:2010-03-26 Published:2010-03-26
  • Contact: Hou Lu, Chief physician, Department of Orthodontics, Harbin Medical University, Harbin 150086, Heilongjiang Province, China houlu@hotmail.com
  • About author:Miao Nan★, Studying for master’s degree, Department of Orthodontics, Harbin Medical University, Harbin 150086, Heilongjiang Province, China nannanonly@hotmail.com

PDF

475

被引次数

18

摘要：

背景：颊侧多曲簧矫治器是一种新型的治疗乳、替牙期AngleⅢ类错牙合畸形的活动矫治器，其在推上颌骨向前促进其发育的同时，可抑制下颌的过度向前发育。
目的：观察颊侧多曲簧矫治器在开闭口运动中的三维力值及变化规律。
方法：应用颊侧多曲簧空间三维测力仪模拟颊侧多曲簧矫治器在口腔中的作用，测量颊侧多曲簧矫治器在开闭口运动中的三维力值并分析其变化规律。
结果与结论：开口过程中：当矢状向加力2 mm、开口度5 mm时对下颌推力最小为(64.96±48.47) g；当矢状向加力3 mm、开口度0 mm时对下颌推力最大为(285.47±14.44) g。闭口过程中：当矢状向加力3 mm、开口度5 mm时对下颌推力最小为(79.31±19.94) g；当矢状向加力3 mm、开口度0 mm时对下颌推力最大为(285.47±14.44) g。开口运动的多元线性回归方程为= -0.415 44 + 0.529 42 X1+0.803 64 X2-0.004 17 X3。闭口运动的多元线性回归方程=-0.426 5 + 0.559 4 X1+  0.777 51 X2+0.005 16 X3。结果显示开闭口程度对颊侧多曲簧力值及方向有显著影响；下颌侧方运动对颊侧多曲簧力值及方向无影响；矢状向力，开闭口程度与颊侧多曲簧力值成线性关系。

关键词: 颊侧多曲簧矫治器, III类错牙合, 开闭口运动, 三维力值, 数字化医学

Abstract:

BACKGROUND: Buccal multiloop removable appliance is a novel appliance. It is primarily used to treat Angle Ⅲ malocclusion at milk teeth and mixed dentition periods. In addition, it can promote maxilla development and inhibit mandible excessively forward development.
OBJECTIVE: To observe the three-dimensional forces of Buccal multiloop appliance in the mouth opening and closing movement and analyze the changing regularity
METHODS: Buccal Multiloop Resistance Tester was used to imitate and calculate the Buccal multiloop removable appliance three-dimensional forces in the mouth opening and closing movement and analyze the changing regularity.
RESULTS AND CONCLUSION: The min force in the mouth opening movement was (64.96±48.47) g when 2 mm sagittal afterburner and 5 mm opening degree. The max force in the mouth opening movement was (285.47±14.44) g when 3 mm sagittal afterburner and 0 mm opening degree. The min force in the mouth closing movement was (79.31±19.94) g when 3 mm sagittal afterburner and 5 mm opening degree. The max force in the mouth closing movement was (285.47±14.44) g when 3 mm sagittal afterburner and 0 mm opening degree. The dimensional linear regression equation in the mouth opening movement was = -0.415 44 + 0.529 42 X1+0.803 64 X2 -0.004 17 X3. The dimensional linear regression equation in the mouth closing movement was = -0.426 5+ 0.559 4 X1+0.777 51 X2+0.005 16 X3 . The results showed the levels of the mouth opening and closing had significant effects on Buccal multiloop removable appliance forces, but the mandibular lateral movement had no effects. There was linear relationship among sagittal saw forces, the levels of the mouth opening and closing and the Buccal multiloop removable appliance forces.

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