Effect of 1.5% Potassium Oxalate on the Control of Tooth Sensitivity and Color Change After Home Bleaching

Application of one drop of Polanight bleaching agent (SDI, SP, Brazil) on each corresponding tooth in a tray that was used for 45 minutes a day, for a period of twenty-one days. After the bleaching treatment, the participants were instructed to wash the trays under running water and dry them. The volunteers were instructed to apply a small amount of placebo gel, without active ingredient, with color, texture and odor similar to 1.5% oxalate gel (Painless, BM4, SC, Brazil) in the spaces related to the vestibular portions of the teeth trays, which were used for 10 minutes.

Application of one drop of Polanight bleaching agent (SDI, SP, Brazil) on each corresponding tooth in a tray that was used for 45 minutes a day, for a period of twenty-one days. After the bleaching treatment, the participants were instructed to wash the trays under running water and dry them with absorbent paper. The volunteers applied a small amount of 1.5% potassium oxalate gel (Painless, BM4, SC, Brazil) in the spaces relative to the vestibular portions of the tray's teeth, which were used for 10 minutes.