title: Associations among oral health-related quality of life, subjective symptoms, clinical status, and self-rated oral health in Japanese university students: a cross-sectional study.
abstract: BACKGROUND
  The present study aimed to elucidate the associations among self-rated oral health, clinical oral health status, oral health behaviors, subjective oral symptoms, and oral health-related quality of life (OHRQoL) in a group of Japanese university students.
  
  
  METHODS
  Of 2051 participants, 2027 (98.83%) students received an optional oral examination and answered a questionnaire including items regarding age, sex, self-rated oral health, oral health behaviors, subjective oral symptoms, and OHRQoL [The Oral Health Impact Profile (OHIP)-14]. On oral examination, the decayed, missing, and filled teeth (DMFT) score, Community Periodontal Index (CPI), the percentage of teeth showing bleeding on probing (%BOP), and malocclusion were recorded. Structural equation modelling (SEM) analysis was used to test associations.
  
  
  RESULTS
  The mean score (± SD) of OHIP-14 was 1.92 ± 5.47. In the SEM analysis, the final model showed that self-rated oral health, oral pain, malocclusion, and the DMFT score were directly associated with the OHRQoL, and subjective symptoms of temporomandibular disorders (TMD) and recurrent aphthous stomatitis were both directly and indirectly associated (p < 0.05). CPI, %BOP, and oral health behaviors were excluded from the final model.
  
  
  CONCLUSIONS
  OHRQoL was associated with self-related oral health, subjective symptoms of TMD, oral pain and stomatitis, DMFT, and malocclusion in this group of Japanese university students.
authors.affiliation: Departments of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
authors.forename: Mayu
authors.initials: M
authors.lastname: Yamane-Takeuchi
authors.affiliation: Departments of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan. dekuni7@md.okayama-u.ac.jp.
authors.forename: Daisuke
authors.identifier: http://orcid.org/0000-0002-1876-5605
authors.initials: D
authors.lastname: Ekuni
authors.affiliation: Section of Geriatric Dentistry Department of General Dentistry, Fukuoka Dental College, Tamura 2-15-1, Fukuoka, 814-0193, Japan.
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Mizutani
authors.affiliation: Departments of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
authors.forename: Kota
authors.initials: K
authors.lastname: Kataoka
authors.affiliation: Departments of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
authors.forename: Ayano
authors.initials: A
authors.lastname: Taniguchi-Tabata
authors.affiliation: Departments of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
authors.forename: Tetsuji
authors.initials: T
authors.lastname: Azuma
authors.affiliation: Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science, Fukuoka, 812-8582, Japan.
authors.forename: Michiko
authors.initials: M
authors.lastname: Furuta
authors.affiliation: Departments of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
authors.forename: Takaaki
authors.initials: T
authors.lastname: Tomofuji
authors.affiliation: Health Service Center, Okayama University, 2-1-1 Tsushima-naka, Kita-ku, Okayama, 700-8530, Japan.
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Iwasaki
authors.affiliation: Departments of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
authors.forename: Manabu
authors.initials: M
authors.lastname: Morita
mesh_terms: D000293:Adolescent; D003430:Cross-Sectional Studies; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D009909:Oral Health; D011788:Quality of Life; D013334:Students; D014495:Universities; D055815:Young Adult
keywords: DMFT; Malocclusion; Oral health-related quality of life; Self-rated oral health; Stomatitis; Temporomandibular disorders