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How can oral bacteria affect parts of the body beyond the mouth?
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dentistry
The practice of dentistry involves preventing, diagnosing, and treating oral disease, as well as correcting deformities of the jaws, teeth, and oral cavity.
Oral bacteria can affect parts of the body beyond the mouth when microorganisms enter the bloodstream or spread to other tissues, leading to systemic health issues.
- Heart: Bacteria from the mouth can enter the bloodstream and travel to the heart, potentially causing endocarditis, an inflammation of the heart lining or valves. This is particularly a risk for individuals with preexisting heart conditions.1
- Brain: Research has identified Porphyromonas gingivalis, a bacterium associated with periodontitis, in the brains of patients with Alzheimer disease. This bacterium secretes a toxic protein that may contribute to neuronal damage and amyloid-beta production, though the exact causal relationship is still being studied.2
- Bones and Soft Tissues: Infections originating from the teeth, such as an abscess, can spread into the jawbone, causing osteomyelitis, or into surrounding soft tissues, resulting in cellulitis.3
Maintaining good oral hygiene is essential, as poor dental health is linked to broader systemic conditions, including cardiovascular disease and diabetes.4