Bad breath (Halitosis)

Bad breath (Halitosis)

Whether you call it bad breath or halitosis, it’s an unpleasant condition that’s cause for embarrassment. Some people with bad breath aren’t even aware there’s a problem. If you’re concerned about bad breath, come and see us at Smile Concepts. We can help identify the cause and, if it’s due to an oral condition, develop a treatment plan to help eliminate it.

What you need to know is

  • what causes bad breath
  • what can you do about it


bad breath due to bacteria on tongue surface


Causes of Bad breath

1. What you eat affects the air you exhale. Certain foods, such as garlic and onions, contribute to objectionable breath odour. Once the food is absorbed into the bloodstream, it is transferred to the lungs, where it is expelled. Brushing, flossing and mouthwash will only mask the odour temporarily. Odours continue until the body eliminates the food. Dieters may develop unpleasant breath from infrequent eating. The main daily culprits of bad breath are dairy prodcucts such as cheese and milk which is a protein source for bad breath bacteria.

2. If you don't brush and floss daily, particles of food remain in the mouth, collecting bacteria, which can cause bad breath. Food that collects between the teeth, on the tongue and around the gums can rot, leaving an unpleasant odor.

3. Bad breath can also be caused by dry mouth (xerostomia), which occurs when the flow of saliva decreases. Saliva is necessary to cleanse the mouth and remove particles that may cause odour. Dry mouth may be caused by various medications, salivary gland problems or continuously breathing through the mouth. If you suffer from dry mouth, we may prescribe an artificial saliva, or suggest using sugarless candy and increasing your fluid intake.

4. Tobacco products cause bad breath. If you use tobacco, ask us for tips on kicking the habit.

5. Bad breath may be the sign of a medical disorder, such as a local infection in the respiratory tract, chronic sinusitis, postnasal drip, chronic bronchitis, diabetes, gastrointestinal disturbance, liver or kidney ailment. If we determine that your mouth is healthy, you may be referred to your family doctor or a specialist to determine the cause of bad breath.

6. Nasal mucous that has not been cleaned regularly becomes stagnant and remains in the nasal passages become a food source for the bacteria thereby resulting in bad breath

7. Bleeding gums may be a sign of periodontal disease meaning that the gums have become infected with bacteria that cause really bad breath.

What can you do about bad breath?

Maintaining good oral health is essential to reducing bad breath. Schedule regular dental visits for a professional cleaning and checkup. If you think you have constant bad breath, keep a log of the foods you eat and make a list of medications you take. Some medications may play a role in creating mouth odours. Let us know if you've had any surgery or illness since your last appointment.

Brush twice a day with fluoride toothpaste to remove food debris and plaque. Brush your tongue, too. Once a day, use floss or an interdental cleaner to clean between teeth.

Mouthwashes are generally cosmetic and do not have a long-lasting effect on bad breath. If you must constantly use a breath freshener to hide unpleasant mouth odour, see us at Smile Concepts. If you need extra help in controlling plaque, we may recommend using a special antimicrobial mouth rinse. A fluoride mouth rinse, used along with brushing and flossing, can help prevent tooth decay.


If you would like more information on this subject, please contact Smile Concepts directly by clicking here or ringing 02 9267 7777