What are two primary indications for antibiotic prophylaxis in dentistry according to common guidelines?

What are two primary indications for antibiotic prophylaxis in dentistry according to common guidelines?

• A. Prophylaxis for all dental patients before any invasive procedure.
• B. Prophylaxis not recommended for any cardiac conditions.
• C. Prophylaxis for patients with prosthetic heart valves or history of infective endocarditis undergoing invasive dental procedures.
• D. Prophylaxis only for patients with caries.

Answer: (C)

When preventing infection from dental procedures, the focus is on patients at highest risk of endocarditis from procedure-related bacteremia. The two primary indications are having a prosthetic heart valve or a history of infective endocarditis, and undergoing an invasive dental procedure that could introduce bacteria into the bloodstream. In these cases, antibiotics before the procedure are considered to reduce the risk of endocarditis. Prophylaxis is not routinely given to all patients, nor is it limited to conditions like caries, which is why the other options don’t fit.

When preventing infection from dental procedures, the focus is on patients at highest risk of endocarditis from procedure-related bacteremia. The two primary indications are having a prosthetic heart valve or a history of infective endocarditis, and undergoing an invasive dental procedure that could introduce bacteria into the bloodstream. In these cases, antibiotics before the procedure are considered to reduce the risk of endocarditis. Prophylaxis is not routinely given to all patients, nor is it limited to conditions like caries, which is why the other options don’t fit.