Department of Prosthodontics, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
Int J Prosthodont. 2013 May-Jun;26(3):268-71. doi: 10.11607/ijp.2970.
This study investigated upper airway aerodynamic characteristics of patients who underwent maxillectomy using three-dimensional reconstruction and computational fluid dynamics. The results revealed the generation of low-velocity vortices throughout the entire maxillary defect during respiration. The nasal structure on the nonsurgical side changed postsurgically, possibly due to the pressure gradient between the defective and healthy side. The bilateral disturbed airflow patterns are believed to be the cause of common symptoms. The numeric simulation technique could be used as a potential method to understand upper airway morphology changes and respiratory functions, thus guiding the fabrication of prostheses.
本研究采用三维重建和计算流体动力学技术，研究了上颌骨切除患者的上呼吸道空气动力学特性。结果显示，在呼吸过程中，整个上颌骨缺损处产生了低速涡流。非手术侧的鼻腔结构在手术后发生了变化，这可能是由于缺损侧和健康侧之间的压力梯度所致。双侧气流紊乱模式被认为是常见症状的原因。数值模拟技术可用作一种潜在的方法，以了解上呼吸道形态变化和呼吸功能，从而指导假体的制作。
