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Halitosis, the medical term for bad breath, affects about 40 million Americans in the United States.
Bad breath is characterized by an unpleasant and persistent odor in exhaled breath that is typically not serious. There are a variety of causes of bad breath that are linked to poor dental hygiene, eating habits, or even dehydration.
The tongue also harbors bacteria, and if it is not brushed daily, halitosis can develop. In some cases, if halitosis persists even after brushing, it may be a sign of an underlying infection or disease.
Halitosis also occurs less in vegetarians than meat-eaters. If the mouth is not cleaned properly, leftover meat particles will begin to decay and produce a foul smell.
The cause of bad breath could be linked to lifestyle habits, diet, poor dental care, or an individual’s medical history. Common risk factors include:
Without correct and regular brushing and flossing, food remains in the mouth. This remaining food results in a breeding ground for bacteria. In addition, the food will rot and produce an unpleasant odor.
Mouth fresheners, gums, and sprays could help temporarily if used in between flossing, brushing, and rinsing with chlorine dioxide mouthwash.
Chewing parsley, basil, mint, or cilantro also helps control bad breath.
Coffee is a highly acidic substance that can lead to dry mouth, tooth discoloration, and halitosis. However, rinsing with mouthwash, brushing, and flossing after drinking coffee reduces bad breath.
Alcoholic drinks and mouthwashes containing more than 25 percent alcohol can lead to halitosis.
Naturally occurring bacteria in the mouth feeds on sugars and results in a sour smell. So, you should eat a balanced diet to counteract the effects of unhealthy foods on your oral health and breath.
Cigarettes, cigars, smokeless tobacco, and chewing tobacco stain the teeth and put the body at risk for a myriad of diseases, as well as cause bad breath.
Blood pressure medications, such as beta-blockers, diuretics, alpha-blockers, and calcium channel blockers, can lead to halitosis. Antihistamines, tetracyclines, sulfa, antidepressants, and decongestants can also cause bad breath.
Dry mouth, also called xerostomia, is a non-life-threatening oral condition that occurs when the salivary glands in the mouth do not produce enough saliva to keep the mouth wet.
It is caused by insufficient fluid intake and certain prescription medications. Cancer treatments, such as chemo, can also result in thick saliva, causing dry mouth.
Xerostomia naturally occurs while you are sleeping and typically causes bad breath in the morning. In particular, adults who sleep with their mouths open are more likely to develop dry mouth.
Low-carb diets (ketosis), fasting, and high-protein diets can cause halitosis. This includes eating excessive amounts of eggs, dairy, and red meat. Not eating enough carbohydrates can also cause this condition.
Dehydration, mucus build-up, and tonsil infections can cause bad breath. Hormonal changes in women, especially during pregnancy, can result in bad breath as well.
The most common cause of bad breath is oral hygiene. However, other situations can also be to blame.
Rare causes of bad breath include:
When the insulin levels of someone with diabetes are very low, their bodies can no longer use sugar and use fat stores instead. When fat is broken down, ketones are made and build up. Ketones can be poisonous in large numbers and create a distinctive and unpleasant breath smell.
Breath can smell like feces if there has been an extended period of vomiting, especially if someone has a bowel obstruction.
This is a condition in which airways become wider than usual. This allows for a build-up of mucus, leading to bad breath.
This is a swelling or infection in the lungs or airways from inhaling vomit, saliva, food, or liquids, resulting in an unpleasant breath odor.
Breath smells can differ depending on the cause of the problem. It is best to ask someone close to check your mouth odor as it can be challenging to assess it yourself.
Look at the inside of your mouth to see if you notice a white coating on the back of your tongue, this is a common sign of bacteria that causes bad breath.
Some people worry about their breath even if they have little or no mouth odor. This condition is known as halitophobia, and it may lead to obsessive mouth-cleansing behavior.
A general dentist will often smell the breath of someone with suspected halitosis and rate it on a six-point intensity scale. The dentist may scrape the back of the tongue and check the scrapings for smell, as this area can typically be a source of the odor.
Several sophisticated detectors can rate the smell more accurately.
Halitosis typically goes away on its own with lifestyle changes and proper oral care. In particular, good oral care tips include:
The American Dental Association (ADA) suggests that adults visit a dentist for regular exams and teeth cleanings at least twice a year (every six months).
Brushing twice a day, flossing at least once a day, and rinsing the mouth with an alcohol-free mouthwash regularly kills bacteria and keeps the mouth healthy.
Brushing the tongue with a scraper also helps prevent bad breath.
If you wear dentures, be sure to take them out at night and clean them before putting them back in your mouth.
Keep your mouth moist by encouraging saliva flow. Eat healthy foods that make you chew. Carrots and apples require a lot of saliva.
You can also suck on sugar-free lozenges, or your dentist can prescribe lozenges to keep your mouth moist.
Other halitosis prevention techniques and treatment options include:
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