Acetylsalicylic acid (ASA) before a tooth extraction not be discontinued. This put new study results suggest. In patients with aspirin therapy had no increased bleeding complications can be detected. After bleeding but come on, can be easily mastered. Smaller operations such as tooth extractions tempt many dentists, ASA therapies their patients to interrupt. Clinical experience shows, however, a different picture: bleeding complications occur more rarely. The study position on this subject is meager, including recommendations of the respective commissions missing. That's why dentists now led by the University of Bonn, a study by the after bleeding risk after tooth extractions under SSA investigated. 
At the study included 65 patients who Thrombi embolism prophylaxis. Than 100 mg of aspirin were given, and 252 control patients. Reasons for aspirin therapy including unstable angina, myocardial infarction or fresh red prophylaxis. In the ASA group were total of 151 teeth and tooth root of 220 units and 543 in the control teeth and tooth root of 852 units removed.
One patient (1.54%) under ASA therapy had a bleeding after that was a serious one. In the control group occurred in four patients (1.59%) to bleeding complications in the two cases as easy or difficult these movements. After all were bleeding without major therapeutic effort to grips with. As complicated classification bleeding occurred in neither of the two groups.