5 Causes and 5 Cures for Bad Breath

woman with bad breath holding her mouthWondering why your loved ones are giving you more personal space than you’ve asked for? Suspicious about the Altoids left on your desk with dental floss bows? If you’re one of 90 million North Americans suffering from chronic bad breath, here are some of the possible causes, as well as remedies to restore your fresh breath—and relationships.

Top 5 Causes of Bad Breath

  1. A dirty mouth – Ninety percent of mouth odors come from mouth itself—either from the food you eat or bacteria that’s already there. Mouth odor is like any other body odor—the result of microbes living in the body giving off byproducts. If you don’t clean properly, the bacteria build up, and next thing you know—that’s not toothpaste on your tongue.
  2. A mouth out of balance – Certain mouth conditions can exacerbate bacterial growth and odor, such as gum disease and dry mouth. Gum disease causes bloody gums, creating more elements for those pesky bacteria to putrefy. But it is a dry mouth that is the more common cause of bad breath. Saliva helps flush out the mouth, keeping bacteria moving so they don’t settle down and multiply, while drier mouth is a breeding ground for bacteria. In spring and summer, allergy medications can dry you out; in winter, dry heat tends to be the culprit.
  3. Stinky foods – If it stinks going in, chances are it’s going to stink coming out. The obvious offenders are onions, garlic, alcohol and tobacco.
  4. Not enough carbs – High-protein, low-carb diets cause your body to burn stored fats for fuel instead of carbs and can lead to a condition called ketosis. As fat burns, ketones build up in the body, and some are released through breath. Unfortunately ketones don’t smell particularly good.
  5. Illness – Occasionally, bad breath can be a sign of a more serious illness. The most common systemic causes of bad breath are diabetes or GERD (or gastro esophageal reflux disease). Diabetes can also cause ketosis, and the resulting bad breath is sometimes one of first symptoms that lead to diagnosis. GERD is a backflow of acid from the stomach to the esophagus. Less common but possible are liver or kidney disease—when toxins from these organs are excreted through the lungs, causing bad breath.

Top 5 Cures for Bad Breath

  1. Keep it clean – Gum, breath mints, mouthwash… these are all helpful stopgaps, but they won’t cure bad breath. The way to get rid of bad breath for most of us is to brush, floss and tongue scrape twice a day. Yes, for fresh breath, the key is tongue scraping. “You can brush and floss till the cows come home, but it won’t help unless you get way back,” says Dr. Gelfand. A tongue scraper is available at most drugstores. Dr. Gelfand swears it helped him when he was suffering from bad breath (not something you want in your dentist, he points out). “Now I smell like a petunia,” he says. “For most of us, brushing, flossing and tongue scraping twice a day will control bad breath.”
  2. Keep it moist – The best way to keep the right saliva balance is to drink plenty of water or liquids. To prevent dry mouth in winter, use a humidifier. If you snore or suffer from postnasal drip, try saline nasal spray to keep nasal passages moist.
  3. Watch what you eat – Avoiding the main offenders (onion, garlic, tobacco, coffee, etc.) is the best way to avoid food-related bad breath. Dietitian Moloo also cites research that suggests certain foods can help: “Two cups of tea a day can prevent bad breath for some. The polyphenols, a plant chemical in tea, may prevent growth of bacteria responsible for bad breath.” You can also chew parsley, which seems to curb offending smells from other foods and bacteria. And cranberries may eliminate offensive smells and make the bacteria less sticky, which makes plaque less likely to form. Price says sugarless gums that contain xylotol may kill some bacteria and help reduce plaque.
  4. Eat some carbs – Apparently the only way to help the ketosis caused by low-carb diets is… to eat some carbs. We recommends fruits, vegetables and whole grains over frosted doughnuts.
  5. See your doctor – If tongue scraping and carbo-loading doesn’t do the trick, check with your doctor to see if he or she suspects a more serious cause. Diabetes, GERD or other diseases require specific diagnoses and treatments.

For long-term treatment, most bad breath will clear up with good oral hygiene; frequent brushing after meals, tongue scraping and flossing. Your dentist may also recommend certain mouth rinses and toothpastes. A professional cleaning by a dentist can help bad breath from periodontal disease. If bad breath is caused by another health condition, get treatment for the underlying health problem.

Some studies suggest bad breath is a leading reason to visit the dentist, behind cavities and gum disease.

Reserve an appointment with an Ontario dentist today. We have offices in Aurora, Brooklin, Cambridge, Guelph, Kitchener, Newmarket, Oshawa, Toronto, Scarborough and Waterloo.