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KMID : 1023420230230020142
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Journal of Dental Hygiene Science
2023 Volume.23 No. 2 p.142 ~ p.153
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Impact of Masticatory Discomfort on Daily Living Difficulties in Korean Elderly with Cognitive Decline
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Do Kyung-Yi
Kim Chun-Bae
Ahn Yeon-Soon
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Abstract
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Background: Cognitive impairment has been reported to be closely associated with poor oral health, and the relationship is bidirectional, as older adults with poor oral health and chewing function are at a higher risk of cognitive decline (CD). This cross-sectional study aimed to determine whether masticatory discomfort in Korean elderly increases the risk of daily living difficulty (DLD) related to CD and whether there is a difference in risk according to gender and age.
Methods: The data used were obtained from the Korean Community Health Survey (2019). The final analysis included 22,154 people aged 65 years and older who completed the survey and responded to all items on the variables used in the study. Chi-square test, trend test, and complex sample logistic regression were performed for statistical analysis, to clarify the purpose of this study.
Results: As masticatory discomfort increased, the elderly’s DLD tended to increase (p-for trend, p＜0.001). For logistic regression, adjusting for all covariates, participants who reported masticatory discomfort as “discomfort” (adjusted odds ratio [AOR]=2.45, 95% confidence interval [CI]=2.11∼3.50) and “severe discomfort” (AOR=2.95, 95% CI=2.49∼3.50) had a more than a two-fold increased risk of CD-related DLD compared to participants who reported “no discomfort at all.” In age-stratified analyses, elderly men aged 75∼84 years and elderly women aged 65∼74 years had the highest risk of developing CD-related DLD.
Conclusion: Oral care interventions to improve masticatory function in older adults may slow CD and improve CD-related DLD. We hope that this study will raise awareness among caregivers and clinical professionals regarding the importance of oral care for older adults with CD.
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KEYWORD
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Chewing, Cognitive dysfunction, Mastication
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