Relationship between impacts attributed to malocclusion and psychological stress in young Japanese adults

Daisuke Ekuni, Michiko Furuta, Koichiro Irie, Tetsuji Azuma, Takaaki Tomofuji, Takashi Murakami, Takashi Yamashiro, Toshio Ogura, Manabu Morita

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Identifying risk factors is important to prevent a wide range of health-damaging behaviours and to improve the quality of life of young people. The aim of this study was to investigate the relationship between impacts on daily performance attributed to malocclusion and psychological stress in healthy young Japanese adults.Medical and oral health data were collected during a cross-sectional examination conducted by the Health Service Center of Okayama University. Systemically healthy non-smoking students aged 18 and 19 years (n = 641; 329 males and 312 females) were included. Malocclusion was defined using a modified version of the Index of Orthodontic Treatment Need (IOTN). The impacts on daily performance attributed to malocclusion and psychological stress were assessed using self-reported questionnaires, the condition-specific oral impacts on daily performances (CS-OIDP), and the Hopkins Symptoms Checklist. Mann-Whitney U- and chi-square tests and structural equation modelling (SEM) were used for statistical analysis.Forty per cent of subjects had a malocclusion (n = 255). Subjects with impacts on daily performance had a significantly higher prevalence of malocclusion than those without impacts (P < 0.001). SEM showed that psychological stress, especially interpersonal sensitivity and depression, was significantly correlated with CS-OIDP and malocclusion. Negative impacts on daily performance attributed to malocclusion may contribute to psychological stress in young Japanese adults.

Original languageEnglish
Pages (from-to)558-563
Number of pages6
JournalEuropean Journal of Orthodontics
Volume33
Issue number5
DOIs
Publication statusPublished - Oct 2011

ASJC Scopus subject areas

  • Orthodontics

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