News Release

Can good dental health help protect against cognitive decline and dementia?

Peer-Reviewed Publication


An analysis of all relevant studies published in the medical literature indicates that poor periodontal health and tooth loss may increase the risk of both cognitive decline and dementia.

The analysis, which is published in the Journal of the American Geriatrics Society, included 47 studies. Poor periodontal health (reflected by having periodontitis, tooth loss, deep periodontal pockets, or alveolar bone loss) was associated with a 23% higher odds of cognitive decline and a 21% higher risk of dementia. Tooth loss alone was linked to a 23% higher odds of cognitive decline and a 13% higher risk of dementia. The overall quality of evidence was low, however.

“From a clinical perspective, our findings emphasize the importance of monitoring and management of periodontal health in the context of dementia prevention, although 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,” the authors wrote.

URL Upon Publication:

Additional Information 

NOTE: The information contained in this release is protected by copyright. Please include journal attribution in all coverage. For more information or to obtain a PDF of any study, please contact:

Dawn Peters +1 781-388-8408 (US)
Follow us on Twitter @WileyNews

About the Journal

Journal of the American Geriatrics Society (JAGS) is the go-to journal for clinical aging research. We provide a diverse, interprofessional community of healthcare professionals with the latest insights on geriatrics education, clinical practice, and public policy—all supporting the high-quality, person-centered care essential to our well-being as we age. 

About Wiley

Wiley is a global leader in research and education, unlocking human potential by enabling discovery, powering education, and shaping workforces. For over 200 years, Wiley has fueled the world’s knowledge ecosystem. Today, our high-impact content, platforms, and services help researchers, learners, institutions, and corporations achieve their goals in an ever-changing world. Visit us at, like us on Facebook and follow us on Twitter and LinkedIn.

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.