IRCT20191115045454N1 IRCT 2020-06-27 Arak University of Medical Sciences evaluating the effect of toothmousse on tooth sensitivity in office bleaching by laser evaluating the effect of toothmousse on tooth sensitivity in office bleaching by laser 2020-08-22 anticipated 30 Complete https://irct.ir/trial/44989 interventional Randomization: Not randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Blinding description: The study is designed one blinded, so that the participants (patients) initially did not know Which jaws have been given to the sensitivity paste and laser or the placebo but Performing professionals are aware. 3 Increased sensitivity after bleaching treatment. Intervention 1: Intervention group: 1.upper right quadrant recieved desensitizing paste and laser 2.upper left quadrant recieved just desensitizing paste 3.lower right quadrant recieved just laser. Intervention 2: Control group: lower left quadrant which did not recieve laser and desensitizing paste. The laser device will be used as a bleaching agent activator.The laser device is placed to the left and right quadrant teeth of the maxilla and mandibleBut to the right of Maxilla and Mandible the light shines.But on the left side of the laser device is off.And for the upper jaw, tooth mousse dough with a special special tray For ten minutes and for the lower jaw Special tray is used without toothpaste After treatment, the sensitivity of the teeth for each patient In four quadrants, we examine the jaw. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information