60
Participants
Start Date
August 31, 2014
Primary Completion Date
November 30, 2014
Study Completion Date
December 31, 2014
whitening dentifrices
Two groups: participants received the instructions to use only the blinded supplied whitening dentifrice (Colgate Luminous White® or Close up White Now®) and toothbrush to make the habitual oral hygiene, three times per day during four weeks
Placebo
One group: participants received the instructions to use only the blinded supplied non-whitening dentifrice (Sorriso®) and toothbrush to make the habitual oral hygiene, three times per day during four weeks
University of Sao Paulo, Ribeirao Preto Campus, Ribeirão Preto
University of Sao Paulo
OTHER