Many dentists continue to require patients to hold warfarin/Coumadin before dental procedures including cleaning, crowns, extractions, et. When they do this, they are flying in the face of current research and can put their patients at risk for serious complications, including strokes. If your dentist tells you to withold anticoagulation, ask if she/he has read the following:
Myths of Dental Surgery in Patients: Receiving Anticoagulant Therapy, M. J. Wahl, JADA The Journal of the American Dental Association, January 2000, Vol.l3, No.1, pp.77-81(5).
Dr. Wahl more than 950 patients who underwent more than 2,400 (dental) surgical procedures. He concluded, "Serious embolic complications, including death (4 patients died), were three times more likely to occur in patients whose anticoagulation therapy was interrupted than were bleeding complications in patients whose anticoagulation therapy was continued (and whose anticoagulation levels were within or below therapeutic levels). Interrupting therapeutic levels of continuous anticoagulation for dental surgery is not based on scientific fact, but seems to be based on its own mythology.