<prompt> After intracoronal bleaching immediate facial composite veneer is required, what should be doneRinse with 3 hydrogen peroxide and ultrasonicsTreat with catalase for 3 minsCannot be done at least for 7 daysRinse with triple distilled water  <response>: Catalse neutralizes residual H2O2 that interfers with composite bonding and polymerization. 