Tooth loss linked to higher dementia risk

Researchers at the University of Eastern Finland found that tooth loss and poor periodontal health could raise the risk of dementia.

The study published in the Journal of American Geriatrics Society investigated the association of periodontal health with cognitive decline and dementia through a comprehensive systematic review consisting of meta-analyses and qualitative assessments of longitudinal studies.

Dangerous link

In a press release, the university said that the disease burden caused by memory disorders is expected to increase in tandem with a rapidly ageing population. Given the lack of widely available disease-modifying drugs, they believe the prevention of cognitive decline and dementia by targeting modifiable factors, including lifestyle choices, is critically important.

“A key observation is that poor periodontal health is a modifiable risk factor, which can be addressed through simple steps, such as self-care measures and regular use of basic oral health services, which may lower the risk of cognitive decline and dementia to some extent,” said Sam Asher, a doctoral researcher at the university.

Revealing analysis

Based on the research analysis, a 23% increased likelihood of cognitive decline and 21% higher risk of dementia was linked to poor periodontal health – which was indicated by periodontitis, tooth loss, alveolar bone loss or deep periodontal pockets.

Tooth loss alone was linked to a 13% higher risk of dementia and a 23% increased risk of cognitive deterioration. However, the overall quality of evidence was low.

“From a clinical perspective, our findings emphasize the importance of monitoring and management of periodontal health in the context of dementia prevention,” the research team added, “although the available evidence is not yet sufficient to point out clear ways for early identification of at-risk individuals, and the most efficient measures to prevent cognitive deterioration.

Click here for the original article published in the University of Finland website.