This randomized, stratified, double-blind, two-cell parallel clinical study evaluated the dental plaque prevention efficacy of a stannous fluoride toothpaste compared to a sodium fluoride control toothpaste following a professional dental prophylaxis. Adult subjects brushed twice daily for 14 days with their assigned dentifrice. Plaque was assessed using the Lobene-Soparkar modification of the Turesky Modification of the Quigley-Hein Plaque Index at baseline, Day 1, and Day 14 following periods of oral hygiene abstention.