For a brighter, more confident smile! Kills millions of bacteria. Fights odor. Removes stains. Works On: Dentures; Partials; Retainers. Clean with Efferdent at Least Once a Day to: Kill 99.9% of the bacteria that cause denture odor; Reduce plaque buildup and remove food particles that can cause gum irritation; Dissolve tough stains in hard-to-reach places; Keep dentures fresh and clean. Can be used in any denture bath. Dentures may be soaked safely in Efferdent overnight. Recommended for use on full or partial dentures and removable orthodontic appliances.