Comprehensive approach to elucidation of association between sleep apnea syndrome and sleep bruxism

2014 Fiscal Year Final Research Report

• Project/Area Number: 24390427
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Prosthetic dentistry
• Research Institution: Hokkaido University
• Principal Investigator: YAMAGUCHI Taihiko 北海道大学, 歯学研究科(研究院), 教授 (90200617)
• Co-Investigator(Kenkyū-buntansha): OKADA Kazuki 北海道大学, 北海道大学病院, 講師 (70399856) ; SATOH Kaoru 北海道大学, 北海道大学病院, 助教 (40281828) ; GOTOUDA Akihito 北海道大学, 北海道大学病院, 助教 (70466465) ; MIKAMI Saki 北海道大学, 北海道大学病院, 医員 (70704477) ; SHIMIZU Koichi 北海道大学, 情報科学研究科, 教授 (30125322) ; NAMITA Takeshi 京都大学, 医学研究科, 助教 (10571250)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 睡眠時無呼吸 / ブラキシズム / 筋電図 / ポリソムノグラフ / 睡眠歯学 / 覚醒

Outline of Final Research Achievements

The aim of this study was to investigate association between sleep apnea syndrome and sleep bruxism (SB). Number of SB bursts was moderately correlated with arousal index but not with apnea-hypopnea index. Apnea-hypopnea events appear to be related to higher occurrence of other types of sleep oromotor activity other than bruxism. In patients with concomitant SB and OSAH, most SB bursts occurred after the termination of apnea-hypopnea events. The temporal association between SB burst and apnea-hypopnea events were thought to be intermediated by arousal reaction due to apnea-hypopnea events.

Free Research Field

補綴歯科学