Patient Experience Perform coronal polishing, pit and fissure sealants, topical fluoride, place and remove temporary restorations, and place/remove matrics, remove excess cement, and certain ortho functions. Registered Dental Assistant III Pay Range: $33–$37/hour Minimum Requirement: Current California Dental Radiation Safety (X-Ray) Certificate (6 years above), often times RDA-EFI, RDA-EFII.