This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
After intracoronal bleaching immediate facial composite veneer is required, what should be done 
Select and explain. 
A. Rinse with 3 % hydrogen peroxide and ultrasonics, B. Treat with catalase for 3 mins, C. Cannot be done at least for 7 days, D. Rinse with triple distilled water
B: Treat with catalase for 3 mins
Answer: B: Treat with catalase for 3 mins 
Explanation: Catalse neutralizes residual H2O2 that interfers with composite bonding and polymerization.