Relationship of pharyngeal airway respiration pressure on anteroposterior skeletal patterns of children: A CFD study of expiration and inspiration
| Project/Area Number |
25670878
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Orthodontics/Pediatric dentistry
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| Research Institution | Kagoshima University |
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Principal Investigator |
TOMONORI Iwasaki 鹿児島大学, 医歯(薬)学総合研究科, 准教授 (10264433)
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| Co-Investigator(Kenkyū-buntansha) |
YAMASAKI Youichi 鹿児島大学, 医歯学総合研究科, 教授 (30200645)
KAJI Tatsuru 鹿児島大学, 医歯学総合研究科, 准教授 (50315420)
HARADA Mizue 鹿児島大学, 医歯学総合研究科, 助教 (20585103)
早崎 治明 新潟大学, 医歯学系, 教授 (60238095)
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| Co-Investigator(Renkei-kenkyūsha) |
KANOMI Ryuzou 鹿児島大学, 医歯学総合研究科, 研究員 (70411444)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | airway pressure / Class II / 漏斗胸 / 上気道 / 通気障害 |
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| Outline of Final Research Achievements |
Introduction: The pharyngeal airway inspiration pressure may influence maxillofacial form. This study tested the null hypothesis that pharyngeal airway respiration pressures in children with malocclusion due to different anterior-posterior skeletal patterns do not differ. Methods: Sixty-two average-FMA-angle children were divided into Class I, Class II, and Class III malocclusion groups. Cone-beam computed tomography data was used to reconstruct 3-dimensional shapes of the nasal and pharyngeal airways. Airflow pressure was simulated using computational fluid dynamics to calculate the pharyngeal airway pressure during inspiration. Results: The pharyngeal airway inspiration pressure in the Class II (-247.64 Pa) group was larger than that in the Class I (-43.51 Pa) and Class III (-31.81 Pa) groups. Conclusion: The large negative inspiratory pharyngeal airway pressure due to nasal obstruction in Class II children is related to their retrognathia.
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Report
(3 results)
Research Products
(12 results)
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[Journal Article] 小児閉塞性睡眠時無呼吸症候群への流体構造連成解析を用いた上気道通気状態シミュレーションの臨床応用2014
Author(s)
岩崎智憲, 武元嘉彦, 稲田絵美, 佐藤秀夫, 深水 篤, 菅 北斗, 齊藤一誠, 原田みずえ, 加治 建, 覚野恵梨子, 嘉ノ海龍三, 山崎要一
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Journal Title
日本歯科医学会誌
Volume: 32
Pages: 39-43
Related Report
Peer Reviewed
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