中国实用口腔科杂志

中国实用口腔科杂志 ›› 2012, Vol. 5 ›› Issue (07): 424-426.

• 论著 • 上一篇    下一篇

应用T-Scan Ⅱ系统对各类错牙合及正畸治疗后患者咬合力分析研究

  

  1. 大连大学附属口腔医院 大连市口腔医院正畸科，辽宁  大连  116021
  • 收稿日期:2011-12-18 修回日期:2012-02-27 出版日期:2012-07-15 发布日期:2012-08-17

  • Received:2011-12-18 Revised:2012-02-27 Online:2012-07-15 Published:2012-08-17

摘要： 目的    比较Ⅰ、Ⅱ、Ⅲ类错牙合及正畸治疗后患者与个别正常牙合的咬合力差异，为正畸临床诊断和术后稳定性评价提供参考。方法    于2006年1月至2008年12月选择来大连大学附属口腔医院正畸科就诊的无正畸治疗史的Ⅰ、Ⅱ、Ⅲ类错牙合患者110例及正畸治疗后患者42例，另选择个别正常牙合志愿者28名。采用T-Scan Ⅱ咬合力分析系统，对其牙合力总值进行比较分析。结果    Ⅰ、Ⅱ、Ⅲ类错牙合的牙合力总值均低于个别正常牙合（P < 0.05）；正畸治疗后患者虽获得良好的咬合关系，牙合力总值增加，但与个别正常牙合比较，差异仍有统计学意义（P < 0.05）。结论    正畸治疗可改善咬合关系，增加牙合力总值，但与个别正常牙合的牙合力总值仍有差异，推断牙齿在建立良好的咬合关系后，仍需要一定时间的咬合面磨合、神经肌肉的改建，才能更好地发挥咬合功能。

关键词: 错牙合, 个别正常牙合, T-Scan Ⅱ, 牙合力总值

Abstract: Objective    To compare the total occlusal force change among normal occlusion，different malocclusions，and post-treatment patients for the clinical diagnosis and evaluation of the treatment stability. Methods    Totally 110 healthy volunteers with skeletal classⅠ，Ⅱ and Ⅲ malocclusion without any tooth and periodontal disease were chosen randomly，and the skeletal classⅠ，Ⅱ and Ⅲ malocclusion cases were 59，26 and 25，respectively. Twenty-eight volunteers were with normal teeth and periodontal condition without orthodontic treatment history；42 post-treatment patients finished in Dalian University Stomatology Hospital were with normal occlusal relation without space and tooth missing from 2006 January to 2008 December，The change of total occlusal force in different malocclusion and normal occlusion were determined by T-Scan Ⅱocclusal analysis system. The total occlusal force of each group was compared by SPSS16.0 statistical analysis. Results    Total occlusal force of skeletal classⅠ，Ⅱ and Ⅲ malocclusion was smaller than that found in normal occlusion（P < 0.05）. Although total occlusal force after orthodontic treatment was improved，it was smaller than occlusal force at normal occlusion. Conclusion    Total occlusal force of skeletal classⅠ，Ⅱ and Ⅲ malocclusion is smaller than that found in normal occlusion. Although orthodontic treatment can improve total occlusal force and occlusal contact，better occlusal relation may be changed by masticatory reproducibility and changing of physiologic occlusal contact.

Key words: malocclusion, normal occlusion, T-Scan Ⅱocclusal analysis system, total occlusal force