大学生における口腔機能と口腔保健関連QOLとの関連。横断的なパイロット研究

The Association of Oral Function with Oral Health-Related Quality of Life in University Students: A Cross-Sectional Pilot Study.

• Saori Oku
• Kiyomi Iyota
• Shinsuke Mizutani
• Shohei Otsuki
• Kyohei Kubo
• Shutaro Yamada
• Yoshihiro Kobayashi
• Haruhiko Kashiwazaki

抄録

本研究の目的は，健康な大学生を対象に，口腔機能と口腔保健関連生活の質（OHRQoL）との関連を調べることである．健康な大学生58名を対象に，口腔機能とOHRQoL（General Oral Health Assessment Index; GOHAI）を調査した．舌圧、舌唇運動機能、咬合力、咀嚼機能などの口腔機能を調査した。参加者は、GOHAIスコアの低値と高値によって2つのグループに分けられた。口腔内の健康状態、う蝕治療歴、不眠症、性格・生活習慣に関する情報は、自己申告式質問票を用いて得た。口腔粘膜湿潤度スコアと舌唇運動機能（口腔ディアドキネシス/ka/）は，低GOHAIスコア群では高GOHAIスコア群に比べて有意に低下した（それぞれ=0.001，=0.017）．ロジスティック回帰モデルでは、GOHAIスコアは口腔粘膜湿潤スコア（オッズ比（OR）＝0.622；95％信頼区間（CI）、0.411-0.941；＝0.025）および口腔ジアドキネシス/ka/（OR＝0.376；95％CI、0.170-0.832；＝0.016）と独立して関連していた。我々の研究は，大学生における口腔機能の低さの存在を実証し，この集団における低 OHRQoL との関連を示唆した．

The aim of this cross-sectional study was to investigate the association between oral function and oral health-related quality of life (OHRQoL) in healthy university students. Oral functions and OHRQoL (General Oral Health Assessment Index; GOHAI) were investigated in 58 healthy university students. Oral functions, such as tongue pressure, tongue-lip motor function, occlusal force, and masticatory function, were examined. The participants were divided into two groups based on low and high GOHAI scores. Information about oral health, dental caries treatment history, insomnia, and personality and lifestyle was obtained using a self-reported questionnaire. Oral mucosal wetness scores and tongue-lip motor functions (oral diadochokinesis /ka/) were significantly decreased in the low GOHAI score group compared to the high GOHAI score group ( = 0.001 and = 0.017, respectively). In the logistic regression model, the GOHAI score was independently associated with the oral mucosal wetness score (odds ratio (OR) = 0.622; 95% confidence interval (CI), 0.411-0.941; = 0.025) and oral diadochokinesis /ka/ (OR = 0.376; 95% CI, 0.170-0.832; = 0.016). Our study demonstrated the presence of low oral function in university students and suggested its association to low OHRQoL in this population.