Journal of Oral Science
Online ISSN : 1880-4926
Print ISSN : 1343-4934
ISSN-L : 1343-4934
Computational fluid dynamics analysis for the preoperative prediction of airway changes after maxillomandibular advancement surgery
Shouhei OgisawaKeiji ShinozukaJunya AokiKeiichi YanagawaAkio HimejimaRyota NakamuraKanako YamagataTakako SatoMasaaki SuzukiTadashi TanumaMorio Tonogi
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2019 Volume 61 Issue 3 Pages 398-405


Maxillomandibular advancement surgery is useful for treatment of sleep apnea. However, preoperative analysis and evaluation to facilitate decision-making regarding the direction and distance of maxillomandibular movement has primarily consisted of morphological analysis; physiological function is not evaluated. To improve preoperative prediction, this study used fluid simulation to investigate the characteristics and effects of airway changes associated with maxillomandibular movement. A one-dimensional model with general applicability was thus developed. Actual measurements of flow in patients were used in this fluid simulation, thus achieving an analysis closer to clinical conditions. The simulation results were qualitatively consistent with the actual measurements, which confirmed the usefulness of the simulation. In addition, the results of the one-dimensional model were within the error ranges of the actual measurements. The present results establish a foundation for using accumulating preoperative measurement data for more-precise prediction of postoperative outcomes.

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© 2019 by Nihon University School of Dentistry
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