Adults who experience tooth loss are more likely to suffer from cognitive impairment and dementia, a new study has found. According to researchers at New York University’s Rory Meyers College of Nursing, the timely provision of dentures and good oral health can reduce the progression of cognitive decline.
Cognitive decline is the weakening of our mental abilities (cognition) and can involve difficulty remembering, thinking, concentrating, speaking and seeing. Cognitive decline is often diagnosed as Mild Cognitive Impairment (MCI), which is a small but noticeable decline of memory or thinking skills that is greater than would be expected from normal ageing. MCI can develop into dementia and Alzheimer’s disease, but can also be lived with and recovered from.
Of the 34,000 participants who took part in the study, it was found that those with more tooth loss had a 1.48 times higher risk of developing MCI and 1.28 times higher risk of being diagnosed with dementia. The risk of cognitive decline was found to increase with each tooth lost. Researchers have offered a range of possible explanations for the link between tooth loss and cognitive decline. One of the possible reasons is that missing teeth can lead to difficulty chewing, which may contribute to nutritional deficiencies or promote changes in the brain.
In contrast, the risk of cognitive decline was not significant among adults with dentures. The study concluded that “timely prosthodontic treatment with dentures may reduce the progression of cognitive decline related to tooth loss.” Dental glass hybrid is a material that has been steadily disrupting the tooth restoration market over the last five years.
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