<prompt> Most common form of disinfection of alginate impression material isSpraying 1 sodium hypochloriteSpraying 5 sodium hypochloriteImmersing in 1 sodium hypochloriteImmersing in 5 sodium hypochlorite  <response>: The current protocol for disinfecting hydrocolloid impressions recommended by the Centers for Disease Control and Prevention is to use household bleach 1-to-10 dilution, iodophors, or synthetic phenols as disinfectants. Guide for selection of Appropriate Disinfection Method for Impressions Transported to a Dental Laboratory 