The Effect of Different Drugs in the Prevention of Tooth Sensitivity Caused by Tooth Bleaching Treatment.

One hour before in-office bleaching patients received either the acetaminophen 750 mg (Paracetamol 750 mg, Bioativa compounding pharmacy) and ketorolac tromethamine oral 10 mg (Toragesic® 10 mg, EMS Sigma Farma). The operator administered the first dose of drug 1 h before the protocol, and extra doses were administered every 8 h for 48 h to keep a safe maximum daily dosage of 4000 mg of acetaminophen and 40 mg of ketorolac tromethamine.

One hour before in-office bleaching patients received either placebo,The operator administered the first dose of drug 1 h before the protocol, and extra doses were administered every 8 h for 48 h.