An automated external defibrillator (AED) is a portable automatic device used to restore normal heart rhythm to patients in cardiac arrest. AED is applied outside the body. It automatically analyzes the patients heart rhythm and advises the rescuer whether or not a shock is needed to restore a normal heart beat. If, as a result of the shock, the patients heart resumes beating normally, the heart has been defibrillated. In the May 2007 Journal of the Canadian Dental Association, guest article by Dr. Dan Haas, Professor of Pharmacology in both the Faculties of Dentistry and Medicine at the University of Toronto, outlined the benefits of the use of an AED and introduced the concept of these devices becoming standard equipment in a dental office.

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Royal College of Dental Surgeons Ontario on the need for AEDs in dental offices