A Cosmetic Study to Measure the Change in Tooth Colour After Using Instant Whitening Prototypes Compared to a Negative Control
Conditions
Interventions
- OTHER: Silica-based fluoride toothpaste containing clay, charcoal, blue covarine and green covarine
- OTHER: Silica-based fluoride toothpaste with blue covarine
- OTHER: Silica-based fluoride toothpaste with blue covarine
- OTHER: Control silica-based fluoride toothpaste
Sponsor
Unilever R&D