Overview

Antiseptic mouthwashes decrease the number of microorganisms in the oral cavity.

Antiseptic mouthwashes can reduce plaque formation but do not reduce existing plaque, which must be removed with mechanical cleaning. Antiseptic mouthwash is not required as part of a standard oral hygiene routine (see Oral hygiene for more information).

The use of antiseptic mouthwashes in periodontal disease is controversial. They are only effective against supragingival plaque, and are not effective beyond the gingival crevice or periodontal pocket. Patients should be informed that the principal treatment for chronic periodontal disease is professional intervention with debridement of involved teeth and meticulous oral hygiene. Although they are not appropriate as the sole treatment for periodontal disease, antiseptic mouthwashes can be beneficial in some circumstances (eg for short-term use in patients with gingivitis or necrotising gingivitis when inflammation restricts normal toothbrushing).