Halitosis, or bad breath, can be the result of poor dental hygiene or other health issues. If daily brushing and flossing are not done correctly, bacteria can flourish on the teeth, gums and tongue and may cause halitosis. It can also be a symptom of periodontal disease resulting from plaque deposits.
Your dentist can determine the cause of the halitosis if it originates within the mouth. When periodontal disease is the cause, the treatment usually involves removal of bacteria and plaque from pockets in the gums. If there is plaque on the teeth, your dentist may suggest an antimicrobial mouthwash to use at home, as well as instruct you on how to proper brushing techniques.