Effect of ethyl alcohol in denture adhesives on determination of drunk driving

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K24099
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0907:Oral science and related fields
• Research Institution: Nagasaki University
• Principal Investigator: OKAZAKI HITOMI 長崎大学, 医歯薬学総合研究科(歯学系), 助教 (90846156)
• Project Period (FY): 2019-08-30 – 2023-03-31
• Keywords: 義歯安定剤 / ホームリライナー / 酒気帯び運転 / 呼気アルコール濃度

Outline of Final Research Achievements

The purpose of this study was to investigate the effect of ethyl alcohol in liner type denture adhesives on determination of drunk driving. The amount of EtOH loss of liner type denture adhesives was measured using a gas chromatograph-mass spectrometer. In addition, a clinical study was conducted to measure the breath alcohol concentration during the use of liner type denture adhesives. From this study, it was observed that the use of liner type denture adhesives affects breath alcohol concentration and leads to values above the threshold for drunk driving. However, the period of time during which the breath alcohol concentration remained above the threshold for drunk driving after insertion into the mouth was not long. The users should wait at least 1 h after inserting the dentures lined with liner type denture adhesives before driving.

Free Research Field

補綴・理工系歯学

Academic Significance and Societal Importance of the Research Achievements

ホームリライナーを塗布した義歯を使用することで、呼気アルコール濃度が酒気帯び運転の基準値を上回ることがあることが判明した。また、ホームリライナー塗布後、酒気帯び運転の基準値を上回る可能性があるため、少なくとも1時間は自動車を運転しないことが望ましい。この結果を周知することで、アルコールを摂取していないにも関わらず誤って酒気帯び運転と判断されるリスクを避けることができるため、社会的意義は大きい。