Three-dimensional kinetic analysis of abnormal chewing and swallowing by the mouth breathing in children

• Project/Area Number: 15K20604
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Orthodontics/Pediatric dentistry
• Research Institution: Kagoshima University
• Principal Investigator: Takemoto Yoshihiko 鹿児島大学, 医歯学域歯学系, 助教 (70452943)
• Research Collaborator: Yamasaki Youichi 鹿児島大学, 医歯学域歯学系, 教授 (30200645) ; Iwasaki Tomonori 鹿児島大学, 医歯学域歯学系, 准教授 (10264433) ; Murakami Daisuke 鹿児島大学, 医歯学域附属病院, 助教 (80611798) ; Morizono Ken 鹿児島大学, 医歯学域歯学系, 助教 (00759938)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 嚥下 / モーションキャプチャ / 協調動態 / 口唇機能評価 / 嚥下動作 / 三次元動作解析

Outline of Final Research Achievements

The purpose of this study was to evaluate the amount of lip movement and simultaneous tongue pressure changes during swallowing.
Subjects were 9 healthy males. All subjects were instructed to swallow 5 mL and 20 mL samples of water at will. Three-dimensional lip movement was measured by a wireless opto-electronic system, and tongue pressure was simultaneously recorded by a sensor sheet attached to an artificial palatal plate. Reflective markers were attached to the right and left corners of the mouth to measure the distance between them. Maximum tongue pressure did not differ significantly between swallowed volumes. The maximum change of distance between the corners of mouth was larger and the lip-tongue interval was significantly shorter with the larger volume.
We suggest that swallowing a larger volume is accomplished by larger lip movement rather than larger tongue movement. These results indicate that lip movement during swallowing can be evaluated objectively.

Research Products

• [Journal Article] Simultaneous Evaluation of Three-Dimensional (2016)
  • Author(s): Ken Morizono1, Yoshihiko Takemoto, Emi Inada, Daisuke Murakami, Issei Saitoh, Hideo Sato, Tomonori Iwasaki, Youichi Yamasaki
  • Journal Title: International Journal of Dentistry and Oral Health Volume: 2 Issue: 2 Pages: 1-6
  • DOI: 10.16966/2378-7090.169
  • Peer Reviewed / Open Access
• [Journal Article] 高精度モーションキャプチャシステムを用いた刷掃動作の解析 ― 第４報：利き手と非利き手の刷掃動作の比較と解析―. (2015)
  • Author(s): 余 永，兒玉瑞希，稲田絵美，齊藤一誠，冨山大輔，武元嘉彦，村上大輔，森園 健，下田平貴子，福重雅美，北上真由美，山崎要一.
  • Journal Title: 小児歯科学雑誌 Volume: 53（3） Pages: 381-389
  • NAID: 130005277395
  • Peer Reviewed
• [Journal Article] Quantitative Evaluation of Toothbrush and Arm-joint Motion during Tooth Brushing (2014)
  • Author(s): Emi Inada, Issei Saitoh, Yong Yu, Daisuke Tomiyama, Daisuke Murakami, Yoshihiko Takemoto, Ken Morizono, Tomonori Iwasaki, Yoko Iwase, Youichi Yamasaki
  • Journal Title: Clinical Oral Investigations, Springer Volume: Published Online Issue: 6 Pages: 1-12
  • DOI: 10.1007/s00784-014-1367-2
  • Peer Reviewed / Open Access
• [Presentation] 嚥下時の口腔顔面軟組織動態と嚥下音の関連性 (2017)
  • Author(s): 白澤良執，武元嘉彦，森園 健，山本祐士，辻井利弥，柳澤彩佳，村上大輔，佐藤秀夫，岩崎智憲，山崎要一
  • Organizer: 第55回日本小児歯科学会大会
  • Place of Presentation: 西日本総合展示場新館（福岡県・北九州市）
  • Year and Date: 2017-05-25
• [Presentation] 本院小児歯科患者の保護者を対象とした歯ブラシと仕上げ磨きに関する調査 (2015)
  • Author(s): 窪田直子, 稲田絵美, 武元嘉彦, 森園健, 岩崎智憲, 山崎要一, 北上真由美
  • Organizer: 第33回日本小児歯科学会九州地方会
  • Place of Presentation: 福岡県歯科医師会館（福岡県福岡市）
  • Year and Date: 2015-11-15
• [Presentation] 呼吸様式が嚥下時の口唇周囲軟組織動態と舌圧動態に及ぼす影響について (2015)
  • Author(s): 森園 健, 武元嘉彦, 稲田絵美, 村上大輔, 佐藤秀夫, 岩崎智憲, 山崎要一
  • Organizer: 第53回日本小児歯科学会大会
  • Place of Presentation: 広島国際会議場（広島県広島市）
  • Year and Date: 2015-05-21