A ventilation function of the three-dimensional lumenairway form by the fluid simulation technique and allied evaluation of the jaw occlusion state

2012 Fiscal Year Final Research Report

• Project/Area Number: 22390392
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Orthodontic/Pediatric dentistry
• Research Institution: Kagoshima University
• Principal Investigator: YAMASAKI Yoichi 鹿児島大学, 大学院・医歯学総合研究科, 教授 (30200645)
• Co-Investigator(Kenkyū-buntansha): IWASAKI Tomonori 鹿児島大学, 医学部・歯学部附属病院, 講師 (10264433) ; HAYASAKI Haruaki 新潟大学, 医歯学総合研究科, 教授 (60238095) ; SAITOH Issei 新潟大学, 医歯学総合研究科, 准教授 (90404540)
• Co-Investigator(Renkei-kenkyūsha): KANOMI Ryuzo 鹿児島大学, 医歯学総合研究科, 研究員 (70411444)
• Project Period (FY): 2010 – 2012
• Keywords: 小児 / 流体シミュレーション技法 / 顎咬合状態 / 上顎骨急速拡大 / 腔通気状態

Research Abstract

The fluid simulation technique was able to evaluate a ventilation condition of the three-dimensional lumen airway. Specifically, we were shown to be effective in the detection of the ventilation obstruction site of the upper airway. Furthermore, the evaluation of the partial ventilation condition of the upper airway was possible, and this method was able to confirm the improvement situation of the nasal cavity ventilation condition by the maxillary rapid expansion. Also, we evaluated a ventilation condition of dolichofacial type and brachyfaicial type of Class II by this method, and upper respiratory tract aeration disorder was able to show that maxillofacial vertical growth and association were deep. We were able to show that a ventilation disorder of the upper airway was associated with maxillofacial vertical growth.

Research Products

• [Journal Article] Tongue posture improvement and pharyngeal airway enlargement as secondary effects of rapid maxillary expansion: A cone-beam computed tomography study (2013)
  • Author(s): Iwasaki T, Saitoh I, Takemoto Y, Inada E, Kakuno E, Kanomi R, Hayasaki H, Yamasaki Y
  • Journal Title: American Journal of Orthodontics and Dentofacial Orthopedics Volume: Vol.143 Pages: 235-245
  • DOI: DOI:10.1016/j.ajodo.2012.09.014
  • Peer Reviewed
• [Journal Article] Evaluation of improvement of nasal airway ventilation following rapid maxillary expansion using computational fluid dynamics (2012)
  • Author(s): Iwasaki T, Saitoh I, Takemoto Y, Inada E, Kanomi R, Hayasaki H, Yamasaki Y
  • Journal Title: American Journal of Orthodontics and Dentofacial Orthopedics Volume: Vol.141, No.3 Pages: 269-278
  • DOI: DOI:10.1016/j.ajodo.2011.08.025
  • Peer Reviewed
• [Journal Article] Evaluation of upper airway obstruction in Class II children using fluid-mechanical simulation (2011)
  • Author(s): Iwasaki T, Saitoh I, Takemoto Y, Inada E, Kanomi R, Hayasaki H, Yamasaki Y
  • Journal Title: Am J Orthod Dentofacial Orthop Volume: Vol.139, No.2 Pages: e135-e145
  • DOI: DOI:10.1016/j.ajodo.2010.08.014
  • Peer Reviewed
• [Presentation] Analysis of upper airway obstruction in Class II children using fluid-mechanical simulation (2012)
  • Author(s): Yamasaki Y, Iwasaki T, Saitoh I, Takemoto Y, Inada E, Kakuno E, Kanomi R, Hayasaki H
  • Organizer: the 8th Biennial Conference of the Pediatric Dentistry Association of Asia (PDAA)
  • Place of Presentation: Sanur Paradisw Plaza Hotel, Bali in Indonesia,The 5 finalists of Scientific competition in Research Poster Session.
  • Year and Date: 20120524-26
• [Presentation] Detection of specific obstruction sites using fluid-structure interaction analysis in children with upper airway obstruction (2012)
  • Author(s): Iwasaki T, Saitoh I, Harada M, Miyashita K, Matsune S, Takemoto Y, Fukami A, Sato H, Inada E, Hasegawa H, Kakuno E, Kanomi R, Hayasaki H, Kurono Y, Yamasaki Y
  • Organizer: THE 7TH ASIAN SLEEP RESEAR SOCIETY CONGRESS, 2012
  • Place of Presentation: Taipei
  • Year and Date: 2012-11-30
• [Presentation] CBCTを用いた上顎骨側方急速拡大による舌位改善と咽頭気道拡大の評価 (2012)
  • Author(s): 岩崎智憲,嘉ノ海龍三,武元嘉彦,齊藤一誠,覚野恵梨子,早崎治明,山崎要一
  • Organizer: 第71回日本矯正歯科学会
  • Place of Presentation: 盛岡市
  • Year and Date: 2012-09-28
• [Presentation] 上気道流体シミュレーションを用いた上顎骨急速拡大による歯科治療前後の吸気時咽頭気道圧の評価 (2012)
  • Author(s): 岩崎智憲, 齊藤一誠, 原田みずえ, 宮下圭一, 松根彰志, 武元嘉彦, 深水 篤, 佐藤秀夫, 稲田絵美, 長谷川大子, 覚野恵梨子,嘉ノ海龍三, 早崎治明, 黒野祐一, 山崎要一
  • Organizer: 第37回日本睡眠学会
  • Place of Presentation: 横浜市
  • Year and Date: 2012-06-29
• [Presentation] Improving tongue posture and pharynx airway as a side effect of rapid maxillary expansion in children: A cone-beam computed tomography study (2012)
  • Author(s): Iwasaki T, Saitoh I, Kanomi R, Hayasaki H, Yamasaki Y
  • Organizer: American Association of Orthodontists (AAO) 112th Annual Session
  • Place of Presentation: Honolulu
  • Year and Date: 2012-05-03
• [Presentation] Detection of specific obstruction sites using fluid-structure interaction analysis in children with obstructive sleep apnea syndrome (2011)
  • Author(s): Iwasaki T, Saitoh I, Harada M, Miyashita K, Matsune S, Takemoto Y, Inada E, Kanomi R, Hayasaki H, Kurono Y, Yamasaki Y
  • Organizer: World Sleep 2011
  • Place of Presentation: Kyoto, Japan, ICC Kyoto
  • Year and Date: 20111016-20
• [Presentation] 閉塞性睡眠時無呼吸症候群への上気道流体シミュレーションの臨床応用 (2011)
  • Author(s): 岩崎智憲,齊藤一誠,早崎治明,山崎要一
  • Organizer: 第27回「歯科医学を中心とした総合的な研究を推進する集い」
  • Place of Presentation: 東京都千代田区・日本歯科医師会館
  • Year and Date: 2011-01-08
• [Presentation] 上気道流体シミュレーションを用いた小児閉塞性睡眠時無呼吸症候群の通気障害部位の特定方法について (2010)
  • Author(s): 岩崎智憲, 早崎治明, 嘉ノ海龍三, 武元嘉彦, 齊藤一誠, 松根彰志, 黒野祐一, 山崎要一
  • Organizer: 第48回日本小児歯科学会大会
  • Place of Presentation: 名古屋市
  • Year and Date: 20100519-20
• [Presentation] Evaluation of upper airway obstruction in Class II children using fluid-mechanical simulation (2010)
  • Author(s): Iwasaki T, Kanomi R, Hayasaki H, Yamasaki Y
  • Organizer: American Association of Orthodontists (AAO) 110th Annual Session
  • Place of Presentation: Washington DC
  • Year and Date: 20100500