The effect of cranial change on oropharyngeal airway and breathing during sleep

Hiroyuki Nakano, Katsuaki Mishima, Hokuto Suga, Tomonori Iwasaki, Kazuya Inoue, Takamitsu Mano, Chikara Yoshimura, Kei Suzuki, Naoko Imagawa, Takaaki Ueno, Yoshihide Mori, Yoshiya Ueyama

研究成果: Contribution to journalArticle査読

抄録

Mandibular micrognathia is one of the characteristics of obstructive sleep apnea syndrome. The purpose of this study was to assess the effects of bimaxillary surgery without maxillary advancement on the upper airway using computational fluid dynamics (CFD) results of comparing pre-and post-operative finite element model. Seven female patients with jaw deformity, who underwent two-jaw surgery (Le Fort1 osteotomy and bilateral sagittal split ramus osteotomy; BSSRO) were enrolled. Maxillary was moved for correcting occlusal plane and mandibular was moved to advancement. Pharyngeal airway space and breathing during sleep were evaluated, comparing the periods of 2 days before and 6 months after the operation. The cross-sectional area of the level of the hard palate (HP) and the level of the tip of the uvula (TU), and airway volume of total, HP-TU, and TP-the level of the base of the epiglottis (BE) were increased. AI and AHI in 2 days before and 6 months after were decreased. As the result of nasal ventilation condition, velocity of HP and TU in 2 days before and 6 months after were decreased. We think that it was revealed that movement of the maxilla without advancement did not affect to the morphology and function of airway.

本文言語英語
ページ(範囲)49-52
ページ数4
ジャーナルJournal of Hard Tissue Biology
29
1
DOI
出版ステータス出版済み - 2020

All Science Journal Classification (ASJC) codes

  • 医学(その他)
  • 生化学
  • 生体材料
  • 整形外科およびスポーツ医学
  • 歯科学(全般)
  • 細胞生物学

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