Periodontal disease in dogs has been linked as a risk factor for problems in which three major organs?

• A. Heart, kidney, and liver
• B. Lungs, kidneys, and heart
• C. Heart, liver, and brain
• D. Kidneys, liver, and spleen

Answer: (A)

Systemic effects of dental disease are the key idea here. When dogs have periodontal disease, bacteria and inflammatory mediators can enter the bloodstream during chewing or brushing. This hematogenous spread can wiring inflammatory processes into organs beyond the mouth, especially those that are highly vascular or sensitive to immune challenges.

The heart, kidneys, and liver are the three organs most consistently associated with these systemic impacts in dogs. Bacteria and inflammation can contribute to cardiac issues such as endocarditis, particularly in dogs with preexisting heart conditions. The kidneys can be affected through immune-mediated or infectious processes, leading to renal dysfunction. The liver can be impacted by inflammatory spread or secondary effects of chronic systemic inflammation, including hepatic inflammation or cholestasis.

Other organs like the lungs, brain, or spleen can be involved in a broad sense, but the strongest, most commonly reported systemic links from periodontal disease in dogs are with the heart, kidneys, and liver.