Control of awake bruxism from central nerve system

2016 Fiscal Year Final Research Report

• Project/Area Number: 26861655
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Nihon University
• Principal Investigator: IIDA Takashi 日本大学, 松戸歯学部, 講師 (50453882)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 日中クレンチング / 中枢 / 可塑性変化

Outline of Final Research Achievements

The aim of this study was to compare the motor evoked potentials (MEPs) in the corticomotor control of jaw-closing muscles between healthy participants and participants with bruxism. 27 participants measured temporalis muscle activity using a portable EMG device during sleep. All participants classified into healthy participants and participants with bruxism. from the masseter and the first dorsal interosseous (FDI) muscles were obtained using TMS. Masseter MEPs of participants with bruxism tended to be slightly lower than healthy participants. However there were no significant differences in FDI MEPs between both groups. Our findings suggest that the performance of bruxism can trigger neuroplastic changes in the corticomotor control of the jaw-closing muscles.

Free Research Field

歯科補綴学