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ucidation of the Mechanism of Sleep Braxism Suppression Effect by Vibration Stimulation Applying EEG Evaluation

Research Project

Project/Area Number 20K18643
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57050:Prosthodontics-related
Research InstitutionShowa University

Principal Investigator

NAKAZATO Yukari  昭和大学, 歯学部, 兼任講師 (00845943)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords睡眠時ブラキシズム / バイオフィードバック / スプリント / 振動刺激 / PSG / スプリント療法
Outline of Research at the Start

振動刺激を応用したバイオフィードバック(BF)療法にSB抑制効果を認めたことを踏まえ,本研究では,BF療法を行った被験者を治療への反応によりResponderとNon-Responderに分類し,簡易睡眠ポリグラフ検査(PSG)データの解析で得られるSBの生理学的病態分類ごとの抑制効果および脳波活動への影響を評価する.これにより振動刺激によるSB抑制効果発現メカニズムの解明に繋がる知見を得ることができれば,将来,補綴治療を要する患者個々人に対応したオーダーメイド医療に確立し得る.

Outline of Final Research Achievements

Sleep bruxism(SB) is commonly managed with oral appliances(OAs), although vibratory biofeedback stimulation has also been investigated. We elucidated the effect of vibration feedback stimulation via an OA on SB. A force-based SB detection system, which used a pressure-sensitive piezoelectric film embedded in the OA, was utilized to trigger a vibrator attached to the OA. Vibratory stimulation was withheld during the first 2-week adaptation period, applied during the 4-week stimulation period. The number and duration of SB episodes/hour of sleep were calculated based on masseter electromyographic activity recorded with in-home portable polysomnography. As a result, the number and duration of SB episodes decreased significantly after application of vibratory stimulation.
Contingent vibratory stimulation through an OA may suppress SB-related masticatory muscle activity continuously and could be effective for the management of SB.

Academic Significance and Societal Importance of the Research Achievements

睡眠時ブラキシズム(SB)の管理法として一般的に用いられている口腔内装置(OA)のSB減少効果は一時的なものである.そこで我々は特に慢性的なSBのある患者に対し,咬合力を軽減する可能性のあるバイオフィードバック療法とOAを組み合わせて使用することで,よりSB抑制効果を高めることができると考えた.さらに,振動刺激スプリントはOAの形態をベースとしているため,患者が標準的なOAと同じように簡単に使用することができ,患者のコンプライアンスの向上を期待できる.このように振動刺激を用いたバイオフィードバック療法は,SBの管理のために実用的かつ臨床的に適用可能な方法であると考えられる.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 Other

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] A pilot study to test the validity of a piezoelectric intra-splint force detector for monitoring of sleep bruxism in comparison to portable polysomnography2022

    • Author(s)
      Aoki Risa、Takaba Masayuki、Abe Yuka、Nakazato Yukari、Ohara Hironobu、Maejima Kohei、Baba Kazuyoshi
    • Journal Title

      Journal of Oral Science

      Volume: 64 Issue: 1 Pages: 63-68

    • DOI

      10.2334/josnusd.21-0421

    • NAID

      130008142663

    • ISSN
      1343-4934, 1880-4926
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of vibratory feedback stimuli through an oral appliance on sleep bruxism: a 6-week intervention trial2021

    • Author(s)
      Ohara Hironobu、Takaba Masayuki、Abe Yuka、Nakazato Yukari、Aoki Risa、Yoshida Yuya、Suganuma Takeshi、Baba Kazuyoshi
    • Journal Title

      Sleep and Breathing

      Volume: online ahed of print Issue: 2 Pages: 949-957

    • DOI

      10.1007/s11325-021-02460-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of contingent vibratory stimulus via an oral appliance on sleep bruxism after the splint adaptation period2021

    • Author(s)
      Nakazato Yukari、Takaba Masayuki、Abe Yuka、Nakamura Hirotaka、Ohara Hironobu、Suganuma Takeshi、Clark Glenn T.、Baba Kazuyoshi
    • Journal Title

      Journal of Oral Rehabilitation

      Volume: 48 Issue: 8 Pages: 901-908

    • DOI

      10.1111/joor.13182

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] オクルーザルスプリントを用いた振動フィードバック刺激の睡眠時ブラキシズム抑制効果2021

    • Author(s)
      小原大宜,高場雅之,安部友佳,中里友香理,青木理紗,吉田裕哉,菅沼岳史,馬場一美
    • Organizer
      日本補綴歯科学会第130回記念学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] オクルーザルスプリントを介した振動刺激による睡眠時ブラキシズム抑制効果2021

    • Author(s)
      小原大宜,高場雅之,安部友佳,中里友香理,青木理紗,吉田裕哉,菅沼岳史,馬場一美
    • Organizer
      第24回日本歯科医学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ピエゾセンサーを用いた睡眠時ブラキシズム検出の収束的妥当性の検討2021

    • Author(s)
      青木理紗,高場雅之,安部友佳,中里友香理,小原大宜,前嶋康平,大野育代,馬場一美
    • Organizer
      日本補綴歯科学会 東京支部第25回学術大会
    • Related Report
      2021 Research-status Report
  • [Remarks] 昭和大学研究者情報・業績集

    • URL

      https://researchers-achievements.showa-u.ac.jp/

    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

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