Randomized digital plaque imaging trial evaluating plaque inhibition efficacy of a novel stabilized stannous fluoride dentifrice compared with an amine fluoride/stannous fluoride dentifrice.

OBJECTIVE

To assess the plaque inhibition efficacy ofa novel 0.454% stabilized stannous fluoride test dentifrice (SnF2) to an amine fluoride/stannous fluoride marketed control dentifrice (AmF/SnF2) using digital plaque imaging analysis (DPIA).

METHODS

The 10-week study was a randomized, two-treatment, three-period, double-blind crossover design. Subjects brushed twice daily with their assigned dentifrice (SnF2 or AmF/SnF2) using a standard manual toothbrush during three treatment periods each lasting 17 days, separated by four-day washout periods. DPIA was used to analyze plaque coverage on facial surfaces of the 12 anterior teeth (canine to canine) by three assessments on Days 15, 16, and 17 at the end of each treatment period. Assessments were conducted the morning following no overnight brushing of facial surfaces (A.M. pre-brush), after 40 seconds of full mouth brushing with the assigned dentifrice (A.M. post-brush), and during the afternoon (P.M.).

RESULTS

Twenty-seven subjects were randomized and completed the study. At each assessment time point, plaque levels for the SnF2 dentifrice were statistically significantly lower compared to those for the AmF/SnF2 dentifrice (21.4%, 22.6%, 24.3%, respectively; p < 0.0001 for all).

CONCLUSION

Plaque coverage, as assessed by DPIA, was significantly lower with a novel SnF2 dentifrice than with the AmF/SnF2 dentifrice. The plaque control benefits of the SnF2 dentifrice seen at the morning and afternoon time points indicated significantly better inhibition of plaque re-growth.