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KMID : 1033920150110010024
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Journal of The Korean Academy of Geriatric Denstry
2015 Volume.11 No. 1 p.24 ~ p.31
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Oral health and cognitive impairment
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Han Seong-Gu
Shin Mo-Gyeong
Choi Yu-Mi
Park Joon-Bong
Kang Kyung-Lhi
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Abstract
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As life expectancy has been increasing in recent decades, the percentage of the older people is continuously growing
around the globe. This phenomenon is induced by various factors, such as improvement in medical care, recognition of
the importance of physical activity, and increased intake of appropriate nutrition. According to the data from the Statistics
Korea, the number of the older people will be approximately 16.5 million in 2040. This increasing population of the older
people leads to interest about common disorders in older people. Dementia is a common disorder among the older people that becomes more prevalent with advancing age. Also, poor oral health state is easy to find in older people. Previous studies about the older people have suggested the association between poor oral health and cognitive impairment. Cognitive impairment may cause poor oral health due to the lack of maintaining ability of oral hygiene. However, this is not enough to explain higher levels of cognitive impairment in population with worse oral health. Poor oral health among the older people has been particularly seen as multiple tooth loss, poor chewing ability, chronic periodontal disease, dental caries, etc. Especially, periodontal disease affects cognitive impairment directly and indirectly by multiple inflammatory products as mediators. Therefore, reduction of inflammatory products by treating periodontal disease may help lead to decrease the incidence of dementia. In this review, we present the association and plausible mechanisms between poor oral health and cognitive impairment.
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KEYWORD
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Older people, Oral health, Cognitive impairment, Periodontal disease, Teeth loss, Poor chewing ability,
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