[Unpleasant smell from a mouth--halitosis].

Halitosis--unpleasant smell from a mouth is widely spread pathology. Approximately one-fourth of world's population is suffering from this disease. Appearance of Halitosis is related not only with dental problems, but also with somatic disease. Unpleasant smell from a mouth is associated with activity of gram negative anaerobic microflora in places unavailable to oxygen. Generally, Halitosis is related with presence of pathologic paradontical areas and carious cavities. Treatment of unpleasant smell from a mouth is accomplished with eradication of infected areas via antimicrobial treatment. For prophylaxis major factors are hygiene and rinsing of oral cavity.