Bacteria living in the human mouth can migrate to other parts of the body and contribute to serious systemic illnesses [1].

This connection suggests that oral hygiene is not merely about dental aesthetics but is a critical component of overall cardiovascular and systemic health. When oral bacteria enter the bloodstream, they can trigger inflammatory responses or infections in distant organs.

Professor Claudio Pannuti of the Faculty of Dentistry at the University of São Paulo said these risks during an interview with CNN Brasil’s “Sinais Vitais” program [1]. He said that the mouth serves as a reservoir for a vast array of microorganisms that can impact the rest of the body.

According to research, there are more than 700 species of bacteria normally found in the human mouth [2]. While many of these are harmless, certain strains associated with periodontal disease can become opportunistic pathogens.

The link between gum health and the heart is particularly significant. Data indicates that people with severe gum disease have about twice the risk of heart disease compared with those with healthy gums [2]. This association highlights how localized infections in the gingival tissues can lead to broader cardiovascular complications.

Pannuti said the goal of highlighting these links is to raise public awareness about the necessity of preventive dental care [1]. Regular checkups and hygiene practices can prevent the systemic spread of these bacteria, reducing the likelihood of secondary infections in other organs.

The discussion emphasizes that the mouth does not function in isolation from the rest of the body's biological systems [1]. By managing oral health, patients may lower their risk of developing chronic conditions that affect the heart and other vital systems [1, 2].

People with severe gum disease have about twice the risk of heart disease compared with those with healthy gums.

The evidence linking oral microbiome health to systemic disease suggests a shift toward integrated medicine, where dental screenings may serve as early warning signs for cardiovascular risk. By identifying periodontal inflammation early, healthcare providers can potentially mitigate the risk of heart disease before it manifests in more severe clinical symptoms.