This single-center, randomized, double-blind, two-treatment crossover clinical study evaluated the safety and efficacy of a stannous fluoride-containing dentifrice compared with a sodium fluoride control dentifrice for the control of intrinsic oral malodor. Adult subjects brushed twice daily with each product during separate treatment periods following standardized wash-out periods. Oral malodor was assessed using trained organoleptic judges applying a validated Odor Intensity (OI) scale at baseline and multiple post-treatment time points.
This four-week, randomized, double-blind crossover study enrolled generally healthy adult subjects with qualifying intrinsic oral malodor. Following screening and an acclimation wash-out period using an ADA-accepted sodium fluoride dentifrice, subjects were randomized to one of two treatment sequences: TheraBreath® Healthy Gums Toothpaste or Crest® Cavity Protection Toothpaste. Each treatment period included supervised and at-home twice-daily brushing without tongue brushing or use of non-study oral hygiene products. Oral malodor was evaluated at baseline, 12-hour overnight, and 4- and 8-hour post-brushing time points on Day 1 and Day 7 using standardized organoleptic assessments performed by three trained judges. Safety was monitored through oral examinations and subject interviews. Treatment comparisons were analyzed using ANCOVA models appropriate for crossover designs.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
49
Comparator toothpaste (0.243% NaF)
Test toothpaste (0.454% SnF)
Salus Research, Inc.
Fort Wayne, Indiana, United States
Change in Odor Intensity Score (OI
Time frame: Baseline to 12-hour overnight assessment after 7 days of product use
Change in Odor Intensity Score at Day 1
Time frame: Mean change in Odor Intensity Scores from baseline to Day 1 overnight assessment.
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