The Purpose of This Research Study is to Compare the Effectiveness of a Non-fluoride Whitening Toothpaste (Test) to That of a Non-whitening Fluoride Toothpaste (Negative Control) in Improving Tooth Whiteness (Removal of Extrinsic Stains Over 4 Weeks of Unsupervised Use.
The Purpose of This Research Study is to Compare the Effectiveness of a Non-fluoride Whitening Toothpaste (Test) to That of a Non-whitening Fluoride Toothpaste (Negative Control) in Improving Tooth Whiteness (Removal of Extrinsic Stains Over 4 Weeks of Unsupervised Use.
The Purpose of This Research Study is to Compare the Effectiveness of a Non-fluoride Whitening Toothpaste (Test) to That of a Non-whitening Fluoride Toothpaste (Negative Control) in Improving Tooth Whiteness (Removal of Extrinsic Stains) Over 8 Weeks of Unsupervised Use.
A Clinical Study to Evaluate the Stain Reduction Efficacy of a Non-Fluoride Tooth Whitening Dentifrice Containing Nano-Hydroxyapatite (nHAP) and a High Cleaning Silica Abrasive System Compared to a Commercial Fluoride Non-Whitening Dentifrice as a Negative Control
A Study Assessing the Effects of an Experimental Dentifrice in Maintaining Tooth Color Following Tooth Bleaching