[Influence of smoking on incidence and progression of periodontal disease. Review of the literature].

On the basis of available literature, presented is the influence of smoking on incidence and progression of peridontal disease. During the process of smoking; more than 400 destructive substances along with nicotine are excreted. Their effects on peridontal tissue present as direct and indirect symptoms (due to disfunction of the immunological reactions) which permit for better conditions for pathological bacterial invasion and increased secretion of proinflammatory factors.