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Halitosis is bad breath or bad breath. The causes of this disorder may be oral ( Problems with teeth, gum, saliva, tongue&hellip ;) or extraoral (impaired respiratory system, digestive disorders or organic or consumption of snuff and alcohol). Normally, halitosis originates in the mouth, as a result of bacterial decomposition of food debris. Treatment may involve: the removal of tartar or plaque, or extraction of teeth with caries, flossing and antiseptic fluorine, the application of a brushed three times a day, avoid snuff, alcohol and coffee... halitosis can affect people psychologically affected, as they may have problems in their family and social life.