Effects of low-level contractions of different craniofacial muscle groups in healthy participants

2015 Fiscal Year Final Research Report

• Project/Area Number: 26462944
• 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: Hokkaido University
• Principal Investigator: ARIMA Taro 北海道大学, 歯学研究科(研究院), 講師 (80346452)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 顎関節症 / 頭痛 / 実験的疼痛誘発試験

Outline of Final Research Achievements

Hyperactivity or abnormal contractions of craniofacial muscles, e.g. bruxism, are traditionally linked to pain and unpleasantness in the active muscles. The aim of this study was to investigate the effects of different standardized craniofacial muscle contractions on perceived muscle symptoms. All muscle contraction tasks evoked significant increases scores of pain, unpleasantness, fatigue, and mental stress. The results showed that submaximal static contractions of different craniofacial muscle groups could evoke mild to moderate levels of transient symptoms. The fatigue resistance may differ between different muscle groups. Further studies are warranted to better understand the contribution of specific craniofacial muscle groups for the characteristic presentation of musculoskeletal pain conditions in the head.

Free Research Field

補綴理工学