上海交通大学学报（医学版）

›› 2013, Vol. 33 ›› Issue (5): 602-.doi: 10.3969/j.issn.1674-8115.2013.05.019

• 论著（基础研究） • 上一篇    下一篇

上颌赝复体修复后上呼吸道气场模拟分析

盖德倩1, 吴亚东2, 焦 婷1   

  1. 上海交通大学 1.医学院附属第九人民医院口腔修复科 |上海市口腔医学重点实验室, 上海 200011； 2.航空航天学院, 上海 200240
  • 出版日期:2013-05-28 发布日期:2013-05-28
  • 通讯作者: 焦 婷, 电子信箱: jiao_ting@hotmail.com。
  • 作者简介:盖德倩(1984—), 女, 硕士生； 电子信箱: deqiangai330@hotmail.com。
  • 基金资助:

    国家自然科学基金青年基金（81100774）；上海市科学技术委员会资助项目（08DZ2271100）；上海市重点（特色）学科建设项目（T0202）；上海市教委科研创新项目（11ZZ102）

Numerical simulation analysis of upper respiratory tract after maxillary restoration

GAI De-qian1, WU Ya-dong2, JIAO Ting1   

  1. 1.Department of Prosthodontics, the Ninth People´s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China； 2.School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China
  • Online:2013-05-28 Published:2013-05-28
  • Supported by:

    National Natural Science Foundation of China, 81100774； Shanghai Science and Technology Committee Foundation, 08DZ2271100； Shanghai Key Discipline Construction Project, T0202； Innovation Program of Shanghai Municipal Education Commission, 11ZZ102

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摘要：

目的 通过计算机模拟计算的方法，研究单侧上颌骨缺损患者赝复体修复后上呼吸道吸气相气体流动的特点。方法 选取1例单侧上颌骨缺损患者，利用术后CT数据三维重建模拟赝复体修复后上呼吸道的气道模型，采用计算机流体动力学方法对气体流场进行模拟分析。结果 数值模拟可以显示赝复体修复后的上呼吸道气流分布情况；从鼻孔到鼻咽部的截面面积和速度云图显示，修复后的患侧鼻道总面积和平均速度趋势与健侧接近。结论 三维数值模拟研究表明，赝复体修复后使上颌骨缺损患者因手术造成的上呼吸道解剖无效腔体积减小，鼻腔气流阻力降低，保护了暴露黏膜并可改善呼吸和发音功能。

关键词: 上呼吸道, 气流运动, 数值模拟, 流体力学, 赝复体

Abstract:

Objective To investigate the characteristics of air flow during the inspiratory phase after unilateral maxillary defect restoration by prosthesis with numeric simulation. Methods A patient with unilateral maxillary defect was selected, the upper respiratory tract model after restoration by prosthesis was simulated by means of post-surgery CT data three dimensional reconstruction, and the air flow field was analysed with computer hydrodynamics. Results Numerical simulation illustrated the air flow distribution in upper respiratory tract. The cross section area from the nostril to the pharynx nasalis indicated that there was little difference in the total area between the healthy side and defective side after restoration, and the same condition was found in the average velocity. Conclusion After maxillary defect restoration by prosthesis, the anatomical invalid cavity and the resistance of air flow are reduced, the exposed mucous membrane is protected, and the respiratory function and pronunciation are improved.

Key words: upper respiratory tract, air movement, numerical simulation, fluid dynamics, prosthesis