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. 2016 Nov 30;16(1):127.
doi: 10.1186/s12903-016-0322-9.

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

Mayu Yamane-Takeuchi  1 , Daisuke Ekuni  2 , Shinsuke Mizutani  3 , Kota Kataoka  1 , Ayano Taniguchi-Tabata  1 , Tetsuji Azuma  1 , Michiko Furuta  4 , Takaaki Tomofuji  1 , Yoshiaki Iwasaki  5 , Manabu Morita  1
Affiliations

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

Mayu Yamane-Takeuchi et al. BMC Oral Health. .

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.

Keywords: DMFT; Malocclusion; Oral health-related quality of life; Self-rated oral health; Stomatitis; Temporomandibular disorders.

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Figures

Fig. 1
Fig. 1
Ideal model. Ideal model showing the associations among self-rated oral health, subjective symptoms, clinical status, oral health behaviors, and OHRQoL. Rectangles indicate observed variables, and ovals show latent variables. The values of single-headed arrows indicate the standardized coefficients. BOP, bleeding on probing; CPI, Community Periodontal Index; DMFT, decayed, missing, and filled teeth; OHRQoL, oral health-related quality of life; TMD, temporomandibular disorders
Fig. 2
Fig. 2
The final structural model. Rectangles indicate observed variables, and ovals show latent variables. The values of single-headed arrows indicate the standardized coefficients. All pathways are significant (p < 0.05). OHRQoL was associated with self-related oral health, subjective symptoms of TMD, oral pain and stomatitis, DMFT, and malocclusion. DMFT, decayed, missing, and filled teeth; OHRQoL, oral health-related quality of life; TMD, temporomandibular disorders
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