Antibiotic prophylaxis with dental procedures is reasonable for patients with cardiac conditions associated with the highest risk of adverse outcomes from endocarditis, including:
1.Prosthetic cardiac valve or prosthetic material used in valve repair.
2.Previous endocarditis.
3.congenital heart disease only in the following categories:
-Unrepaired cyanotic congenital heart disease, including those palliative shunts and conduits.
-Completely repaired congenital heart disease with prosthetic material or device, whether placed by surgery or catheter intervention, during the first six months after the procedure.
-Repaired congenital heart disease with residual defects at the site or adjacent to the site of a prosthetic patch or prosthetic device (which inhibit endothelialization).
4.cardiac transplantation recipients with cardiac valvular disease.
"Prophylaxis is reasonable because endothelialization of prosthetic material occurs within six months after the procedure.