Oral Malodor, also known as Halitosis
There are a variety of causes for halitosis which are characterized by the release of different odor intensive gases. Apart from intraoral causes, a number of systemic diseases can also cause halitosis.
Intraoral halitosis can be caused by gingivitis and or periodontitis, bacterial tongue-coating or a combination of the afore-mentioned conditions.
Extraoral halitosis is caused by pharyngeal infections such as tonsillitis; nasal infections such as sinusitis and postnasal drip; respiratory infections such as pneumonia; pulmonary diseases and gastric symptoms.
Systemic diseases such as Liver failure, Kidney failure, Diabetes Mellitus, Metabolic Syndrome, certain foods and medications contribute to oral malodor.