[The place of chemical products in oral hygiene for the prevention and treatment of periodontal disease].

The mechanical elimination of the bacteria plaque is the basis of the prevention and the treatment of gingivitis and periodontitis. Chemicals products used in the control of supra and subgingival plaque show a great importance because of individual and professional difficulties which constitute an impediment to the effective elimination of the bacteria plaque. However, by this time, there's no miracle product for oral hygiene capable at long term to take over from the tooth-brush and paste. The use at long term of chemicals in the bacteria plaque control can't be recommended because of their following effects and their slight effectivity-cost ratio. Nevertheless, oral hygiene chemicals combined with mechanical treatment provide very good results. Particularly, when used in the form of subgingival irrigation or slow liberation materials set in the periodontal pocket.