Trends in Self-Rated Oral Health and Its Associations with Oral Health Status and Oral Health Behaviors in Japanese University Students: A Cross-Sectional Study from 2011 to 2019

Momoko Nakahara, Naoki Toyama, Daisuke Ekuni, Noriko Takeuchi, Takayuki Maruyama, Aya Yokoi, Daiki Fukuhara, Nanami Sawada, Yukiho Nakashima, Manabu Morita

Research output: Contribution to journalArticlepeer-review

Abstract

Self-rated oral health (SROH) is a valid, comprehensive indicator of oral health status. The purpose of this cross-sectional study was to analyze how oral health behaviors and clinical oral status were associated with SROH and how they had changed over the course of nine years in Japanese university students. Data were obtained from 17,996 students who underwent oral examinations and completed self-questionnaires from 2011 to 2019. Oral status was assessed using the decayed and filled teeth scores, bleeding on probing (BOP), probing pocket depth, the Oral Hygiene Index-Simplified (OHI-S), oral health behaviors, and related factors. SROH improved from 2011 to 2019. The logistic regression model showed that university students who were female and had a high daily frequency of tooth brushing, no BOP, no decayed teeth, no filled teeth, and a low OHI-S score and were significantly more likely to report very good, good, or fair SROH. An interaction effect was observed between survey year and regular dental check-ups (year × regular dental check-ups). The improvement trend in SROH might be associated with changes in oral health behaviors and oral health status.

Original languageEnglish
Article number13580
JournalInternational journal of environmental research and public health
Volume19
Issue number20
DOIs
Publication statusPublished - Oct 2022

Keywords

  • behavioral sciences
  • caries
  • gingivitis
  • oral health
  • oral health behaviors
  • oral hygiene
  • self-rated oral health

ASJC Scopus subject areas

  • Pollution
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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