Khaberni - A new study published in the Neurology Open Access journal of the American Academy of Neurology shows that poor oral health, especially when affected by both tooth decay and gum disease together, may be linked to an increased risk of stroke by 86% compared to individuals with healthy mouths.
The study included 5,986 participants with an average age of 63, none of whom had suffered a stroke at the start of the follow-up. They underwent examinations to determine the presence of gum disease or decay or both, and were then followed for twenty years through telephone interviews and review of their medical records.
During the follow-up period, results showed that only 4% of those with a healthy mouth suffered from a stroke, compared to 7% of those suffering from gum disease alone, and 10% of those suffering from both gum disease and decay. After analyzing other factors such as age, smoking, and body mass index, it was found that the risk of stroke increased by 86% in those suffering from both conditions, and 44% in those with gum disease only.
Researchers also linked poor oral health to an increased likelihood of cardiovascular diseases by 36%, including heart attacks and fatal strokes. The results also indicated that people who visit the dentist regularly were 81% less likely to suffer from both gum disease and decay together.
Dr. Sovik Sen, a professor of neurology at the University of South Carolina and the lead researcher of the team, said: "Our findings show that caring for oral health is not just a cosmetic matter, but it may be an important way to protect the brain and reduce the risk of stroke."
The researchers explained that the relationship between oral health and stroke does not necessarily mean that one causes the other, but it shows a strong correlation that calls for further research. Although the study assessed oral health only at the start of the follow-up period, it supports the growing idea that the relationship between oral health and the health of the brain or heart is deeper than previously thought.
The researchers conclude that regular care of teeth and gums through daily cleaning and periodic visits to the dentist may be a simple but effective way to reduce the risk of stroke and heart diseases.
