Cengage Advantage Books: Introduction to Business Law 4th Edition by Timothy Koch, Jeffrey Beatty, Jeffrey Beatty, Susan Samuelson, Susan Samuelson

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Advertisements for Listerine mouthwash claimed that it was as effective as flossing in preventing tooth plaque and gum disease. This statement was true, but only if the flossing was done incorrectly. In fact, many consumers do floss incorrectly. However, if flossing is done right, it is more effective against plaque and gum disease than Listerine. Is this advertisement deceptive Does it violate §5 of the FTC Act