Your mouth is a complex ecosystem with about 700 different bacterial species, some of which contribute to gum disease, also known as periodontal disease. Biological dentistry utilizes a holistic approach to oral health, making the connection between oral health and overall health. As such, a growing body of research from the National Institute on Aging (NIA) has suggested a correlation between gum disease and the development of Alzheimer’s disease and other forms of dementia.
Periodontal disease results when the tissues holding teeth in place become infected, leading to bleeding gums, loose teeth, or even tooth loss. Tellingly, the bacteria involved, such as Porphyromonas gingivalis, and the inflammatory molecules produced, can travel from the mouth to the brain through the bloodstream. There is increasing evidence suggesting that this journey may lead to a cascade of events culminating in dementia.
To investigate this link, the NIA used data from the National Health and Nutrition Examination Survey (NHANES) to investigate if periodontal disease and oral bacteria infections corresponded to memory-related complications. Cross-comparisons were conducted over various age groups, with the longest observation period being 26 years, involving more than 6,000 participants who were examined for signs of periodontal disease.
Alarmingly, the analysis revealed that adults above the age of 65, who showed signs of periodontal disease and oral infections in the initial stages, were more likely to present symptoms of Alzheimer’s over the study period. The risk was further amplified by the presence of the bacterium Porphyromonas gingivalis, which frequently cohabits with other bacteria Campylobacter rectus and Prevotella melaninogenica to further increase risks.
Although these findings strongly indicate that oral infections precede memory-related diagnosis, follow-up studies are still required to confirm causality. Nonetheless, these insights continue to highlight the critical role biological dentistry plays in preventive healthcare. By helping to maintain optimal oral health, biological dentists not only protect our teeth and gums but could also potentially ward off severe diseases like Alzheimer’s, reinforcing good oral health for good brain health.
The International Academy of Biological Dentistry and Medicine (IABDM) is a network of dentists, physicians, and health professionals committed to promoting biological dentistry. We invite you to visit our website to learn more about our advocacy for biocompatible dental materials and toxin-free practices.