Colgate fluorigard alcohol free mouth rinse is a dentist recommended mouthwash to help restore tooth enamel this is because the alcohol free sodium fluoride mouthwash reduces caries by inhibiting demineralisation and promoting remineralisation of the tooth surface providing daily protection to teeth as its alcohol free its suitable for children and patients who may prefer an alcohol free mouth rinse fluoride works in three ways to protect teeth from attack by the acids that are produced by