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Jihye Yun 1 Article
Association Between Dental Implants and Cognitive Function in Community-dwelling Older Adults in Korea
Seungkook Ki, Jihye Yun, Jinhee Kim, Yunhwan Lee
J Prev Med Public Health. 2019;52(5):333-343.   Published online September 20, 2019
DOI: https://doi.org/10.3961/jpmph.19.163
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AbstractAbstract AbstractSummary PDFSupplementary Material
Objectives
This study aimed to evaluate the association between dental implants and cognitive function in community-dwelling older adults.
Methods
Data were collected from the baseline survey (2016-2017) of the Korean Frailty and Aging Cohort Study. The study sample comprised 1115 community-dwelling people aged 70 years to 84 years who had 0-19 natural teeth. Dental implants and natural teeth were identified by panoramic radiography, while the cognitive function was assessed by the Korean version of the Mini-Mental State Examination (MMSE-KC). The association between dental implants and cognitive function was analyzed by multiple linear regression. Sensitivity analysis was performed to test for potential bias.
Results
The mean number of natural teeth in the study population was 9.50 (standard deviation [SD], 6.42), and the mean MMSE-KC score was 24.93 (SD, 3.55). In the simple univariate analysis, tooth replacement, age, sex, smoking status, alcohol consumption, body mass index, osteoporosis, number of natural teeth, periodontitis, chewing discomfort, tooth-brushing frequency, education level, monthly household income, participation in economic activity, living alone, and marital status had a significant impact on the association. After adjusting for confounders, the association between dental implants and cognitive function remained significant (B, 0.85; standard error, 0.40; p<0.05). Age, body mass index, periodontitis, tooth-brushing frequency, and education level were also significantly associated with cognitive function. The results of the sensitivity analyses were consistent with those of the primary analysis.
Conclusions
Dental implants were associated with cognitive function in older adults living in the community. Dental implants as tooth replacements may play a role in preserving cognitive function.
Summary
Korean summary
임플란트 내지 임플란터블 디바이스는 생활 양식에 미치는 영향이 적고 직접적인 행동이나 복잡한 기술을 덜 필요로 하므로 임플란트는 라이프스타일 변경보다 더 수정성이 있는 효과적인 개입이 될 수 있다. 이 연구에서는 임플란터블 디바이스의 일종인 치아 임플란트와 인지 기능 사이의 관계를 조사하였다. 연구 결과 70세 이상의 지역사회 거주 노인에 있어 치아 탈락의 치료로서 치아 임플란트가 인지 기능과 연관성이 있음을 보여주었다. 치아 임플란트는 인지 예비능력의 보존에 기여하는 것으로 생각되며, 지역 사회 거주 노인에서 인지 저하의 예방으로서 치아 임플란트 치료를 충분히 고려해볼 수 있을 것이다.

Citations

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JPMPH : Journal of Preventive Medicine and Public Health