Influence of occlusal contact with occlusal related disoreders for brain stem reflex

• Project/Area Number: 26462959
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Nihon University
• Principal Investigator: KOMIYAMA Osamu 日本大学, 松戸歯学部, 教授 (60339223)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 咬合接触 / ブラキシズム / 脳幹反射 / クレンチング

Outline of Final Research Achievements

This study was conducted to clarify that the influence of occlusal contact condition for master inhibitory reflex as brainstem reflex with occlusal related patients. First study suggested that indirect occlusal contact examinations may not accurately reflect the intraoral occlusal condition. Nest study suggested that a rigorous training paradign may improve the performance of masseter muscle s in terms of accuracy but not MVC. Third study showed that the occlusal contact area increased with increasing clenching intensity in the posterior tooth but not anterior tooth. It is suggested that occlusal contact may change at low clenching levels and affect the tooth and periodontal tissues in molar tooth. As following these studies, the influence of occlusal contact condition for master inhibitory reflex suggested the strong influence from occlusal contact condition in molar teeth.

Research Products

• [Int'l Joint Research] Aarhus University(デンマーク)
• [Int'l Joint Research] Catholic University of Leuven(ベルギー)
• [Journal Article] Comparison of occlusal contact area in each tooth during low-level clenching (2017)
  • Author(s): Hideta Nishimori, Takashi Iida, Hirona Kamiyama, Yoshihiro Komoda, Ryoko Obara,Takashi Uchida, Misao Kawara, Osamu Komiyama
  • Journal Title: Journall of Oral Science Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Effect of a repeated jaw motor task on masseter muscle performance. (2015)
  • Author(s): Iida T, Komiyama O, Honki H, Komoda Y, Baad-Hansen L, Kawara M, Svensson P.
  • Journal Title: Arch Oral Biol. Volume: 60 Issue: 11 Pages: 1625-1631
  • DOI: 10.1016/j.archoralbio.2015.08.005
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Comparison of direct and indirect occlusal contact examinations with different clenching intensities (2015)
  • Author(s): Osamu Komiyama, Ryoko Obara, Takashi Iida, Takashi Asano, Manabu Masuda, Takashi Uchida, Antoon De Laat, Misao Kawara
  • Journal Title: Journal of Oral Rehabilitation Volume: 42 Issue: 3 Pages: 185-191
  • DOI: 10.1111/joor.12242
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Age-related associations between psychological characteristics and pain intensity among Japanese patients with temporomandibular disorder. (2014)
  • Author(s): Komiyama O, Obara R, Iida T, Nishimura H, Okubo M, Uchida T, Shimosaka M, Narita N, Niwa H, Kubo H, De Laat A, Kawara M, Makiyama Y
  • Journal Title: Jouranl of Oral Science Volume: 56 Pages: 221-225
  • NAID: 130004691132
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Referred pain and sensations due to standardized palpation of the masseter muscle in healthy participants (2016)
  • Author(s): Manabu Masuda, Takashi Iida, Fernando Exposto, Lene Baad-Hansen, Osamu Komiyama, Misao Kawara, Peter Svensson
  • Organizer: Internatioonal Association for the study of Pain
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2016-09-26
  • Int'l Joint Research
• [Presentation] Interactions between jaw and tongue movements influence motor cortical neuroplasticity (2016)
  • Author(s): Takashi Iida, Yoshihiro Komoda, Osamu Komiyama, Lene Baad-Hansen, Misao Kawara, and Peter Svensson
  • Organizer: International Association for Dental Research
  • Place of Presentation: Seul, Korea
  • Year and Date: 2016-06-22
  • Int'l Joint Research
• [Presentation] Comparison of occlusal contact during low-level clenching intensity (2015)
  • Author(s): Osamu Komiyama, Takashi Iida, Yoshihiro Komoda, Manabu Masuda, Ryoko Obara, Misao Kawara
  • Organizer: 39th Annual Conference of the European Prosthodontic Association
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2015-09-03
  • Int'l Joint Research
• [Presentation] The importance of brain functions and force control in prosthodontic treatment (2015)
  • Author(s): Osamu Komiyama
  • Organizer: 2015 Biennial Joint Congress of JPS-CPS-KAP
  • Place of Presentation: Hakone, Japan
  • Year and Date: 2015-04-10
  • Int'l Joint Research / Invited
• [Presentation] Direct and Indirect Occlusal Contact Examinations with Different Clenching Intensities (2015)
  • Author(s): Osamu Komiyama; Ryoko Obara; Manabu Masuda; Takashi Iida; Misao Kawara
  • Organizer: 93rd General Session of the International Association of Dental Research
  • Place of Presentation: Hynes Convention Center (Boston U.S.A.)
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] Influence of narrative instructions for occlusal contact analysis. (2014)
  • Author(s): M Honda, O Komiyama, R Obara, T Iida, and M Kawara
  • Organizer: 92nd General Session of the International Association of Dental Research
  • Place of Presentation: Cape Town International Convention Center (Cape Town, South Africa)
  • Year and Date: 2014-06-25 – 2014-06-28
• [Book] 咬合のサイエンスとアート (2016)
  • Author(s): Martin Gross 著、古谷野潔 監訳、阿部伸一、吉田教明、井上富雄、小見山 道、山口泰彦、矢谷博文、服部佳功、佐々木啓一、窪木拓男、佐藤博信、松香芳三、市川哲雄、皆木省吾、前田芳信、玉置勝司、藤澤政紀、大久保力廣、近藤尚知、山崎長郎、船越栄次、馬場一美、鱒見進一、他30名、訳
  • Total Pages: 535
  • Publisher: クインテッセンス出版
• [Book] 顎関節症診療ハンドブック (2016)
  • Author(s): 本田和也、松本邦史、小林馨、新井嘉則編、五十嵐千浪、江島堅一朗、岡田明子、川島祥史、小見山 道、澤田久仁彦、志賀 博、高橋富久、月村直樹、野間 昇、濱田良樹、本田美知子、依田哲也 著
  • Total Pages: 151
  • Publisher: メディア出版
• [Book] 新 よくわかる顎口腔機能 (2016)
  • Author(s): 顎口腔機能学会編、井上富雄、 田中昌博、山口泰彦、田村康夫、小川 匠、志賀 博、佐々木啓一、皆木省吾、小見山 道、横山敦郎、加藤隆史、藤澤政紀、馬場一美、他62名 著
  • Total Pages: 287
  • Publisher: 医歯薬出版株式会社
• [Remarks] 日本大学研究者情報システム
  • URL: http://kenkyu-web.cin.nihon-u.ac.jp/Profiles/56/0005580/profile.html