Relative elucidation of lips dysrhaphic state by the establishment of the new rating system of chewing, the deglutition function and the abnormal oral cavity function

• Project/Area Number: 17K11964
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Orthodontics/Pediatric dentistry
• Research Institution: Kagoshima University
• Principal Investigator: Takemoto Yoshihiko 鹿児島大学, 医歯学総合研究科, 客員研究員 (70452943)
• Co-Investigator(Kenkyū-buntansha): 岩崎 智憲 鹿児島大学, 医歯学域歯学系, 准教授 (10264433) ; 山崎 要一 鹿児島大学, 医歯学域歯学系, 教授 (30200645)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 小児 / 嚥下 / 摂食 / 呼吸 / 咀嚼 / 口唇閉鎖不全 / 口腔機能 / 嚥下動作 / モーションキャプチャ / 三次元動作解析

Outline of Final Research Achievements

In late years children affecting the development of a series of oral cavity functions "that it chews it and swallows" because of the lips dysrhaphic state by various causes increase.Also, support depending on the development situation of the oral cavity function is recommended from the viewpoint of food education in the childhood.Therefore it evaluated oral cavity functions from chewing to deglutition objectively and investigated the association of the abnormal chewing, deglutition change induced by lips dysrhaphic state.
As a result, it was found that breathing was associated with eating deglutition closely and performed the study on breathing in parallel and was able to determine adenoids, hyperplasia of palatine tonsil, effect of the nasal obstruction.

Academic Significance and Societal Importance of the Research Achievements

本研究で、小児期の食育の観点から「子どもたちが上手に食べる」ための口腔機能の発達支援ができるだけでなく、呼吸障害に基づく口唇閉鎖不全と口腔機能が関連する知見は歯科医が関連医療職と連携する機会を広げることに繋がる。さらに、小児期から正常な口腔機能の獲得へ導くことは老年期の口腔機能低下の予防にも貢献し、誤嚥性肺炎や生活習慣病が減少するものと推察されるので、年々増加している医療費を削減する一助になることが期待できる。

Research Products

• [Journal Article] Rapid maxillary expansion effects of nasal airway in children with cleft lip and palate using computational fluid dynamics (2019)
  • Author(s): Iwasaki Tomonori、Yanagisawa‐Minami Ayaka、Suga Hokuto、Shirazawa Yoshito、Tsujii Toshiya、Yamamoto Yuushi、Ban Yuusuke、Sato‐Hashiguchi Makiko、Sato Hideo、Kanomi Ryuzo、Yamasaki Youichi
  • Journal Title: Orthodontics & Craniofacial Research Volume: － Issue: 3 Pages: 201-207
  • DOI: 10.1111/ocr.12311
  • Peer Reviewed / Open Access
• [Journal Article] Evaluation of the pharyngeal airway using computational fluid dynamics in patients with acromegaly (2018)
  • Author(s): Mukaihara Keika、Hasegawa-Moriyama Maiko、Iwasaki Tomonori、Yamasaki Youichi、Kanmura Yuichi
  • Journal Title: Laryngoscope Investigative Otolaryngology Volume: 1 Issue: 2 Pages: 1-6
  • DOI: 10.1002/lio2.151
  • NAID: 120006980525
  • Peer Reviewed
• [Journal Article] Relationships among tongue volume, hyoid position, airway volume and maxillofacial form in paediatric patients with Class-I, Class-II and Class-III malocclusions (2018)
  • Author(s): Iwasaki Tomonori、Suga Hokuto、Yanagisawa-Minami Ayaka、Sato Hideo、Sato-Hashiguchi Makiko、Shirazawa Yoshito、Tsujii Toshiya、Yamamoto Yuushi、Kanomi Ryuzo、Yamasaki Youichi
  • Journal Title: Orthodontics & Craniofacial Research Volume: 22 Issue: 1 Pages: 9-15
  • DOI: 10.1111/ocr.12251
  • Peer Reviewed
• [Journal Article] The effect of Herbst appliance on pharyngeal airway ventilation conditions evaluated using computational fluid dynamics. (2017)
  • Author(s): Iwasaki T, Sato H, Suga H, Minami A, Yamamoto Y, Takemoto Y, Inada E, Saitoh I, Kakuno E, Kanomi R, Yamasaki Y
  • Journal Title: The Angle Orthodontist. Volume: 87 Issue: 3 Pages: 397-403
  • DOI: 10.2319/080616-603.1
  • Peer Reviewed / Open Access
• [Journal Article] Influence of pharyngeal airway respiration pressure on Class II mandibular retrusion in children: a computational fluid dynamics study of inspiration and expiration (2017)
  • Author(s): Iwasaki T, Sato H, Suga H, Takemoto Y, Inada E, Saito I, Kakuno E, Kanomi R, Yamasaki Y
  • Journal Title: Orthodontics & Craniofacial Research Volume: 20 Issue: 2 Pages: 95-101
  • DOI: 10.1111/ocr.12145
  • Peer Reviewed / Open Access
• [Journal Article] Relationships between nasal resistance, adenoids, tonsils, and tongue posture and maxillofacial form in Class II and Class III children. (2017)
  • Author(s): Iwasaki T, Sato H, Suga H, Takemoto Y, Inada E, Saito I, Kakuno E, Kanomi R, Yamasaki Y
  • Journal Title: American Journal of Orthodontics & Dentofacial Orthopedics. Volume: 151 Issue: 5 Pages: 929-40
  • DOI: 10.1016/j.ajodo.2016.10.027
  • Peer Reviewed / Open Access
• [Presentation] 上気道流体シミュレーションを用いた口唇口蓋裂児の鼻腔の上顎急速拡大効果 (2019)
  • Author(s): 岩崎 智憲, 菅 北斗, 柳澤 彩佳, 白澤 良執, 辻井 利弥, 橋口 真紀子, 武元 嘉彦, 嘉ノ海 龍三, 山崎 要一
  • Organizer: 日本小児歯科学会
• [Presentation] 嚥下時の口腔顔面軟組織動態と嚥下音の関連性 (2018)
  • Author(s): 白澤良執、岩崎智憲、佐藤秀夫、山崎要一
  • Organizer: 平成30年度鹿児島大学大学院発表会