O Oral anticoagulant medication prescribe as long term therapy for thrombocmbolic diseases and other disorders such as stroke and myocar infarct. The problem that arises is the controversy about the continuity of this drug on patients undergoing invasive dental procedures. It is known that the use of oral anticoagulant increases the risk of bleeding. On the other hand, stopping the drug could cause fatal thromboembolic complication. There are two major opinions regarding the continuity of oral anticoagulant on dental patient. The first opinion suggests stopping the use of oral anticoagulant while other suggests the contrary. The usual habit in managing dental patient on oral anticoagulant therapy is to stop using the drug on purpose to avoid patient's risk of bleeding. This practice is not proper and endangers patients with the risk of thromboembolic. Oral anticoagulant does not need to be withdrawn before dental procedures as long as patient's levels of anticoagulant within secure therapeutic range. Bleeding caused by dental procedures can be controlled using adequate local hemostatic.