Relations between occlusal discomfort and adaptability to oral appliances - a quantitative magnetoencephalographic study -

2014 Fiscal Year Final Research Report

• Project/Area Number: 23592825
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthetic dentistry
• Research Institution: Hokkaido University
• Principal Investigator: SATOH Kaoru 北海道大学, 大学病院, 助教 (40281828)
• Co-Investigator(Kenkyū-buntansha): YAMAGUCHI Taihiko 北海道大学, 大学院歯学研究科, 教授 (90200617) ; MAEZAWA Hitoshi 北海道大学, 大学院歯学研究科, 助教 (80567727) ; MINOWA Kazuyuki 北海道大学, 大学院歯学研究科, 准教授 (30209845) ; OKADA Kazuki 北海道大学, 北海道大学病院, 講師 (70399856)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 咬合異常感 / 脳磁図 / α波 / ブラキシズム / 歯根膜 / 大脳皮質体性感覚野 / 顎関節症

Outline of Final Research Achievements

We analyzed brain activity with MEG to establish a method for objective evaluation of correlation between discomfort and　intensity of occlusal contacts. Oral somatosensory was stimulated. As a result, power value of alpha waves during rest and closing eyes was reduced by continuous mechanical stimulation on the periodontal membrane. The activity was generated in the centriciput- occiput region. It was suggested that this method was effective to cause discomfort on periodontal membrane.

Free Research Field

補綴系歯学