"Our results show the importance of the overall oral microbiome—not only of the role of 'bad' bacteria but also 'good' bacteria—in modulating amyloid levels," Angela Kamer, PhD, associate professor of periodontology and implant dentistry at NYU College of Dentistry and the study's lead author, said in a statement.
We found that having evidence for brain amyloid was associated with increased harmful and decreased beneficial bacteria." And for more brain health, check out If You Have This Blood Type, Your Dementia Risk Is High, Study Says.
The study authors point out that the findings are also significant because 70 percent of seniors over the age of 65 suffer from periodontal disease.The disease causes pockets between teeth and gums to become inflamed and enlarged, creating conditions that can help harbor bacteria, StudyFinds reports.