Journal of Korean Academy of Oral Health

The Korean Academy of Preventive Dentistry and Oral Health (대한예방치과·구강보건학회)
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Association between masticatory ability, oral health-related quality of life and cognitive function in the elderly population using structural equation modeling

구조방정식을 이용한 대도시 일부 노인들의 저작능력 및 구강건강관련 삶의 질과 인지기능

  • Shin, Hae-Eun (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Chang, Ic-Jun (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Cho, Min-Jeong (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Song, Keun-Bae (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University) ;
  • Choi, Youn-Hee (Department of Preventive Dentistry, School of Dentistry, Kyungpook National University)
  • 신해은 (경북대학교 치의학전문대학원 예방치과학교실) ;
  • 장익준 (경북대학교 치의학전문대학원 예방치과학교실) ;
  • 조민정 (경북대학교 치의학전문대학원 예방치과학교실) ;
  • 송근배 (경북대학교 치의학전문대학원 예방치과학교실) ;
  • 최연희 (경북대학교 치의학전문대학원 예방치과학교실)
  • Received : 2018.08.17
  • Accepted : 2018.10.02
  • Published : 2018.12.30
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Abstract

Objectives: The aim of this study was to investigate the association between masticatory ability, oral health-related quality of life, and cognitive function in an elderly population using structural equation modeling. Methods: A total of 308 subjects, aged 65 years and over, were recruited from the senior citizen center in Daegu, South Korea and provided consent for inclusion in the study. The Korean version of the Mini-Mental State Examination (K-MMSE) was used to assess the level of cognitive function. Masticatory ability was evaluated through chewing tests, patient-perceived masticatory function and, measurement of relative occlusal forces on molar teeth using the T-Scan $III^{(R)}$ system. All data were analyzed using ${\chi}^2$ tests, t-tests, and one-way ANOVA in SPSS version 23.0 for windows. Structural equation modeling was performed using SPSS AMOS version 22.0. Results: There was a significant association between cognitive function and molar teeth occlusal force. Ability of food chewing score and patient-perceived masticatory function could affect oral health-related quality of life (P>0.05). Higher occlusal forces on molar teeth, compared to anterior teeth, positively correlated with higher cognitive function. Conclusions: These results suggest that an individual's oral health condition could affect molar teeth occlusal forces and may be related to a risk of developing dementia. Therefore, there is a need for implementing nation-wide policies to improve oral health, such as masticatory function, in the elderly population.

Keywords

Acknowledgement

Supported by : 한국연구재단

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