Bad breath also known as halitosis is caused by poor oral hygiene habits and or may be related to some health issues. Unhealthy lifestyle habits such as smoking and chewing tobacco can also cause bad breath and also some foods such as garlic and onions.
Brushing teeth and tongue twice daily and flossing at least once a day to remove all the plaque and bacteria can help reduce bad breath. Food and bacteria inhibits bacterial growth between teeth, around the gums and on the tongue.
Prolonged bad breath or bad taste in the mouth may be warning signs of gum(periodontal) disease. Sometimes bad breath can be induced from poorly fitting dental appliances, yeast infections of the mouth and dental caries (cavities).
The medical term dry mouth also known as xerostomia is a major cause of bad breath.
Dry mouth is caused as a side effect due to various medications, salivary gland issues associated with auto-immune disorders, or prolonged habits of breathing through the mouth.
Saliva is necessary to lubricate and cleanse the mouth by neutralizing acids produced by plaque and washing away dead cells that accumulate on the tongue, gums, and cheeks. Failing to remove by thorough oral hygiene, these cells decompose and cause bad breath.
Although there are many diseases that causes bad breath, a few to be aware of are Sinus or lung infections, bronchitis, diabetes, and some liver or kidney diseases !!
Visit your dentist twice a year and drink plenty of water to keep your mouth lubricated.
You can read more on the link below from the ADA.
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