Effect of malocclusion severity on oral health-related quality of life and food intake ability in a Korean population

Sung Hwan Choi, Jung Suk Kim, Jung Yul Cha, Chung Ju Hwang

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

Introduction: The aim of this study was to evaluate the effect of malocclusion severity on oral health-related quality of life and food intake ability in adult patients, controlling for sex, age, and the type of dental clinic visited. Methods: The sample consisted of 472 Korean patients (156 male, 316 female) with a mean age of 21.1 (SD, 8.6) years in a dental hospital and a private clinic. The correlations between the Korean version of the Oral Health Impact Profile-14 (OHIP-14K), subjective food intake ability (FIA) for 5 key foods, and Index of Orthodontic Treatment Need-Dental Health Component (IOTN-DHC) were investigated. Results: The mean IOTN-DHC and OHIP-14K scores were significantly higher for the dental hospital patients than for the private clinic patients (IOTN-DHC, P <0.001; OHIP-14K, P <0.05). Malocclusion severity was significantly higher in male than in female subjects (P <0.001). Older patients perceived their oral health-related quality of life more negatively than did the teens (P <0.001). As the severity of the malocclusion increased, oral health-related quality of life and masticatory function worsened (OHIP-14K, P <0.001; FIA, P <0.05). Conclusions: As the severity of the malocclusion and the age of the patients increased, oral health-related quality of life and masticatory function relatively deteriorated. This finding provides evidence that severe malocclusions are associated with lower quality of life and less masticatory efficiency in older patients.

Original languageEnglish
Pages (from-to)384-390
Number of pages7
JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
Volume149
Issue number3
DOIs
Publication statusPublished - 2016 Mar 1

Bibliographical note

Publisher Copyright:
© 2016 American Association of Orthodontists.

All Science Journal Classification (ASJC) codes

  • Orthodontics

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