40
Participants
Start Date
January 12, 2021
Primary Completion Date
November 3, 2021
Study Completion Date
February 15, 2022
6% hydrogen peroxide gel + violet LED
Tooth whitening with 6% hydrogen peroxide gel (Lase Peroxide Lite, DMC, São Carlos, Brazil) activated by violet LED
6% hydrogen peroxide gel + blue LED
Tooth whitening with 6% hydrogen peroxide gel (Lase Peroxide Lite, DMC, São Carlos, Brazil) activated by blue LED
35% hydrogen peroxide gel + violet LED
Tooth whitening with 35% hydrogen peroxide gel (Lase Peroxide Sensy, DMC, São Carlos, Brazil) activated by violet LED
35% hydrogen peroxide gel + blue LED
Tooth whitening with 35% hydrogen peroxide gel (Lase Peroxide Sensy, DMC, São Carlos, Brazil) activated by blue LED
Federal University of Pará, Belém
Universidade Federal do Para
OTHER