1. Poor oral health care:
Accumulation of plaque & calculus, odor-causing bacteria on the tongue and improperly cleaned dentures.
2. Gum or periodontal disease, dental caries & tooth abscess
3. Dry mouth (Xerostomia):
Due to certain medicines, salivary gland disorder, or by always breathing through the mouth instead of the nose.
4.Tobacco products:
Cigarettes, cigars, smokeless tobacco & snuff.
5.Health conditions:
Digestion problems, cough cold, sinusitis & oral cancer.