What Are the Causes of Bad Breath?

What Are the Causes of Bad Breath?

Posted by 5TH AVE SMILE on Sep 22 2022, 06:11 AM

Bad breath doesn’t develop overnight. Bad breath begins when bacteria build up in your mouth, resulting in an unpleasant odor. Bacteria in your mouth can cause your breath to smell like “old socks” or “rotten eggs.”

There are certain factors that may result in bad breath, including:

Poor Oral Hygiene

Poor oral hygiene can contribute to bad breath. Bacteria in the mouth multiply and release sulfur compounds, which contribute to bad breath. Brushing, flossing, and rinsing with an antibacterial mouthwash can help control bad breath.

Food and Drink

Food and drink can linger in your mouth and on your teeth long after you have finished eating. Bacteria in the mouth feed on the food particles left behind, creating foul-smelling gas and acid.

Periodontal Disease

Periodontal disease is caused by infection and inflammation of the gums. When left untreated, it can cause the gums to pull away from the teeth, exposing part of the tooth. This can happen by breaking down the gum tissue and the bone that holds the teeth in place.

Other Medical Conditions

Bad breath can be caused by certain medical conditions such as diabetes, kidney disease, or liver disease.

Tobacco Use

Tobacco use is the leading cause of both gum disease and tooth decay. This habit also leads to bad breath. This is because tobacco causes a number of oral problems, including gum disease, cavities, stained teeth, and tongue inflammation

Tobacco use also causes the gums to recede from the teeth, which causes the roots to become exposed. This causes the roots to become susceptible to infection, decay, and damage.

Dry Mouth (Xerostomia)

A dry mouth (xerostomia) is a condition in which a person does not have enough saliva to lubricate their mouth. This lack of saliva causes an unpleasant taste in the mouth, bad breath, and cracked lips. Symptoms of dry mouth may not be noticeable at first but will become more prevalent as saliva levels continue to decrease.

Now that you know why dry mouth happens, there are ways to prevent it from affecting your oral health. One simple solution is to drink more water. Staying hydrated is a great way to prevent dry mouth. Other things you can do include avoiding sugary foods, chewing sugarless gum, and avoiding tobacco.


Certain medications can cause bad breath, especially those that dry out the mouth. A dry mouth is caused by a decreased flow of saliva. 

At 5th Ave Smile, our experienced team provides the best dental care for patients in Aurora, CO. To schedule an appointment, call (303) 360-7462, or visit our office at 2044 Clinton St. Suite B, Aurora, CO 80010.

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