Abstract
This case report describes chronic ischemic heart disease developed another myocardiac infarction onset after the tooth extraction. The patient was a 59-year-old male with chronic ischemic heart disease and diabetes mellitus. He has been taking both anti-platelet and anti-coagulant drugs. Tooth extraction had been carries out with 4-time. When the fourth tooth extraction, the physician discontinued anti-platelet drug and anti-coagulant drug for 10 days. When the tooth extraction or minor surgical procedure, anti-platelet drug and anti-coagulant drug might be better to be discontinued, because these drugs were very important medicine to prevent a relapse of basic disease. From the experienece of this event, the definitive criteria to manage these drugs in oral surgery will be required.