Maintaining good oral health is essential in reducing bad breath. If you don’t brush and floss regularly, harmful bacteria can attack tooth enamel, which will lead to tooth decay. Make sure you replace your toothbrush every few months, since a number of microorganisms can live in your toothbrush and infect your mouth. Visit your dentist for regularly scheduled cleanings to help keep plaque build-up to a minimum. For most people, the Canadian Dental Association recommends a check up every six months, but your dentist may suggest that you visit more or less often depending on how well you clean your teeth.