Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional Study
To mitigate the impact of dementia, initiating early intervention is important. This study aims to investigate the associations between deterioration in oral function and cognitive decline in older outpatients whose oral health was maintained in the dental clinic. This study included 50 outpatients...
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doaj-98e0adef13d84dffab026fd785e077592020-11-25T04:10:36ZengMDPI AGInternational Journal of Environmental Research and Public Health1661-78271660-46012020-11-01178700870010.3390/ijerph17228700Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional StudyRui Egashira0Shinsuke Mizutani1Masahiro Yamaguchi2Tomotaka Kato3Yojiro Umezaki4Saori Oku5Keiko Tamai6Toyoshi Obata7Toru Naito8Section of Geriatric Dentistry, Department of General Dentistry, Fukuoka Dental College, Fukuoka 814-0193, JapanOBT Research Center, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, JapanSection of Geriatric Dentistry, Department of General Dentistry, Fukuoka Dental College, Fukuoka 814-0193, JapanDepartment of Oral Health Sciences, University of Washington, Seattle, WA 98195, USASection of Geriatric Dentistry, Department of General Dentistry, Fukuoka Dental College, Fukuoka 814-0193, JapanSection of Geriatric Dentistry and Perioperative Medicine in Dentistry, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, JapanSection of Geriatric Dentistry, Department of General Dentistry, Fukuoka Dental College, Fukuoka 814-0193, JapanObata Medical Clinic, Fukuoka 814-0175, JapanSection of Geriatric Dentistry, Department of General Dentistry, Fukuoka Dental College, Fukuoka 814-0193, JapanTo mitigate the impact of dementia, initiating early intervention is important. This study aims to investigate the associations between deterioration in oral function and cognitive decline in older outpatients whose oral health was maintained in the dental clinic. This study included 50 outpatients aged ≥65 years. We used the Japanese version of the Montreal Cognitive Assessment (MoCA-J) to assess cognitive decline. Oral function was evaluated by tongue pressure, masticatory performance, and swallowing ability. A full-mouth periodontal examination was conducted, and the occlusal support and number of teeth were recorded. Odds ratios (ORs) and 95% confidence intervals (CIs) for cognitive decline (MoCA-J score ≤ 25 points) were calculated using logistic regression models. The age, number of teeth, tongue pressure, and masticatory performance were significantly correlated with cognitive decline (<i>p</i> < 0.05). Logistic regression analyses revealed that cognitive decline was independently associated with age (OR: 1.25; 95% CI: 1.03–1.52; <i>p</i> = 0.024), number of teeth (OR = 0.83; 95% CI: 0.76–1.00; <i>p</i> = 0.047), and lower tongue pressure (OR: 0.87; 95% CI: 0.77–0.98; <i>p</i> = 0.022). Lower tongue pressure and a small number of remaining teeth may be associated with cognitive decline in Japanese outpatients.https://www.mdpi.com/1660-4601/17/22/8700cross-sectional studyelderlyoral functioncognitive functiongeriatric dentistry |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rui Egashira Shinsuke Mizutani Masahiro Yamaguchi Tomotaka Kato Yojiro Umezaki Saori Oku Keiko Tamai Toyoshi Obata Toru Naito |
spellingShingle |
Rui Egashira Shinsuke Mizutani Masahiro Yamaguchi Tomotaka Kato Yojiro Umezaki Saori Oku Keiko Tamai Toyoshi Obata Toru Naito Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional Study International Journal of Environmental Research and Public Health cross-sectional study elderly oral function cognitive function geriatric dentistry |
author_facet |
Rui Egashira Shinsuke Mizutani Masahiro Yamaguchi Tomotaka Kato Yojiro Umezaki Saori Oku Keiko Tamai Toyoshi Obata Toru Naito |
author_sort |
Rui Egashira |
title |
Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional Study |
title_short |
Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional Study |
title_full |
Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional Study |
title_fullStr |
Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional Study |
title_full_unstemmed |
Low Tongue Strength and the Number of Teeth Present Are Associated with Cognitive Decline in Older Japanese Dental Outpatients: A Cross-Sectional Study |
title_sort |
low tongue strength and the number of teeth present are associated with cognitive decline in older japanese dental outpatients: a cross-sectional study |
publisher |
MDPI AG |
series |
International Journal of Environmental Research and Public Health |
issn |
1661-7827 1660-4601 |
publishDate |
2020-11-01 |
description |
To mitigate the impact of dementia, initiating early intervention is important. This study aims to investigate the associations between deterioration in oral function and cognitive decline in older outpatients whose oral health was maintained in the dental clinic. This study included 50 outpatients aged ≥65 years. We used the Japanese version of the Montreal Cognitive Assessment (MoCA-J) to assess cognitive decline. Oral function was evaluated by tongue pressure, masticatory performance, and swallowing ability. A full-mouth periodontal examination was conducted, and the occlusal support and number of teeth were recorded. Odds ratios (ORs) and 95% confidence intervals (CIs) for cognitive decline (MoCA-J score ≤ 25 points) were calculated using logistic regression models. The age, number of teeth, tongue pressure, and masticatory performance were significantly correlated with cognitive decline (<i>p</i> < 0.05). Logistic regression analyses revealed that cognitive decline was independently associated with age (OR: 1.25; 95% CI: 1.03–1.52; <i>p</i> = 0.024), number of teeth (OR = 0.83; 95% CI: 0.76–1.00; <i>p</i> = 0.047), and lower tongue pressure (OR: 0.87; 95% CI: 0.77–0.98; <i>p</i> = 0.022). Lower tongue pressure and a small number of remaining teeth may be associated with cognitive decline in Japanese outpatients. |
topic |
cross-sectional study elderly oral function cognitive function geriatric dentistry |
url |
https://www.mdpi.com/1660-4601/17/22/8700 |
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