{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T15:11:00Z","timestamp":1789571460607,"version":"build-2803163510"},"reference-count":54,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2013,10,16]],"date-time":"2013-10-16T00:00:00Z","timestamp":1381881600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Gerodontology"],"published-print":{"date-parts":[[2015,6]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Patients with dementia have poorer oral health and fewer teeth than their peers without cognitive impairment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>The hypothesis of this study is that the number of natural teeth and the chewing efficiency are associated with cognitive functioning.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This cross\u2010sectional study included 29 patients diagnosed with dementia aged 75\u00a0years or older and 22 controls who were either cognitively normal (<jats:italic>n<\/jats:italic>\u00a0=\u00a019) or with mild cognitive impairment (<jats:italic>n<\/jats:italic>\u00a0=\u00a03). Neuropsychological, nutritional and dental assessments were performed. The chewing efficiency was evaluated with a two\u2010colour mixing test.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Demented patients and controls presented with a mean of 4.9 and 6.5 teeth, respectively (n.s.). The number of natural teeth was not associated with dementia (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.553). Same results were found for age (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.746) and sex (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.901). The chewing efficiency by visual inspection proved worse in participants with dementia than in the controls (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.011) and explained 9.3% of the variance in the diagnosis of dementia. Neither dental state nor chewing efficiency was related to the nutritional state.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Chewing efficiency seems stronger associated with cognitive impairment than the number of teeth. Hence, in a more holistic approach for the geriatric assessment, the dental examination may be complemented by a chewing efficiency test.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ger.12079","type":"journal-article","created":{"date-parts":[[2013,10,16]],"date-time":"2013-10-16T09:22:26Z","timestamp":1381915346000},"page":"149-156","source":"Crossref","is-referenced-by-count":102,"title":["Tooth loss, chewing efficiency and cognitive impairment in geriatric patients"],"prefix":"10.1111","volume":"32","author":[{"given":"Fanny","family":"Elsig","sequence":"first","affiliation":[{"name":"Division of Gerodontology and Removable Prosthodontics University of Geneva Dental School Geneva Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Schimmel","sequence":"additional","affiliation":[{"name":"Division of Gerodontology and Removable Prosthodontics University of Geneva Dental School Geneva 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