According to Wikipedia the definition of Halitosis is:
also known as bad breath, is a symptom in which a noticeably unpleasant odor is present on the exhaled breath. Concern about halitosis is estimated to be the third most frequent reason for people to seek dental care, following tooth decay and gum disease; and about 20% of the general population are reported to suffer from it to some degree.
Persistent bad breath or a bad taste in the mouth may be a warning sign of gum (periodontal) disease. Gum disease is caused by the buildup of plaque on teeth. Bacteria cause the formation of toxins to form, which irritate the gums. If gum disease continues untreated it can damage the gums and the jawbone.
What Can I Do to Prevent Bad Breath?
Bad breath can be reduced or prevented if you:
- Practice good oral hygiene. Brush twice a day with fluoridetoothpaste to remove food debris and plaque. Brush teeth after you eat (keep a toothbrush at work or school to brush after lunch). Don’t forget to brush the tongue, too. Replace your toothbrush every 2 to 3 months or after an illness. Use floss or an interdental cleaner to remove food particles and plaque between teeth once a day. Rinse with an antibacterial mouthwash twice a day. Dentures should be removed at night and cleaned thoroughly before being placed in your mouth the next morning.
- See your dentist regularly — at least twice a year. He or she will conduct an oral exam and professional teeth cleaning and will be able to detect and treat periodontal disease, dry mouth, or other problems that may be the cause of bad mouth odor.
- Stop smoking and chewing tobacco-based products. Ask your dentist for tips on kicking the habit.
- Drink lots of water. This will keep your mouth moist. Chewing gum (preferably sugarless) or sucking on candy (preferably sugarless) also stimulates the production of saliva, which helps wash away food particles and bacteria. Gums and mints containing xylitol are best.
- Keep a log of the foods you eat. If you think they may be causing bad breath, bring the log to your dentist to review. Similarly, make a list of the medications you take. Some drugs may play a role in creating mouth odors.