Universidade Federal Do Para

This study tests whether a gel made from the Libidibia ferrea plant can reduce tooth sensitivity after professional whitening. Seventy-five adults will receive either the experimental gel, a standard desensitizing gel, or a placebo before bleaching with hydrogen peroxide. Partici…

This study tests whether a gel made from propolis (a bee product) can reduce tooth sensitivity after professional whitening. 66 adults will receive either propolis gel, a standard desensitizer, or a placebo before bleaching. Their pain and color change will be tracked for two wee…