Mouth Odor which is otherwise known as bad breath, or halitosis, is an unpleasant odor of the mouth. It can occur on occasion, or it can be a chronic condition. It may be caused by foods a person eats, poor oral hygiene, medical conditions, or other factors.
It could also be defined as the presence of a foul-smelling odor that seems to come from the mouth cavity. According to the Academy of General Dentistry, in more than 90% of cases, the odor originates in the mouth, throat, and tonsils.
Although this is something everyone experiences at one time or another, if your case does not improve after brushing, flossing, and rinsing the mouth with an alcohol free mouthwash, it may be chronic.