An estimated sixty-five percent of Americans have bad breath. Over 4 million Canadians have "chronic halitosis," which is persistent bad breath. Ninety percent of all halitosis is of oral, not systemic, origin. Canadians spend more than $100 million a year on over the counter halitosis products, many of which are ineffective because they only mask the problem. For information on how to prevent bad breath, visit us at >http://centrumdental.ca/patient-education/oral-health-problems/bad-breath-halitosis.