In the walking bleach technique:: (A) It uses a heat treatment, (B) It requires the patient to report in 24 hours, (C) Can be done with 35 percent hydrogen peroxide, (D) It uses a mixture of sodium perborate and hydrogen peroxide
Answer is D. Hydrogen Peroxide can be used alone or mixed with sodium perborate into a paste for use in the “walking bleach technique”.
Ref :Grossman’s endodontics,13th edition, pg no:504