Which of the following is explicitly listed as an RDA authorized function related to infection control?

• A. Infection control/ use of hazardous materials
• B. Sealants
• C. Place/remove matrix/ wedges
• D. Coronal polishing

Answer: (A)

Infection control tasks and handling hazardous materials are explicit responsibilities tied to the RDA role because they directly keep patients and staff safe from infection. This includes following proper aseptic techniques, preparing and maintaining sterile fields, cleaning and sterilizing instruments, and safely managing hazardous materials and waste according to guidelines. These duties are specifically about preventing contamination, cross-infection, and occupational exposure, which is why this option is the best choice.

The other items are clinical procedures rather than infection-control duties. Sealants are preventive restorative materials used on teeth; placing or removing matrix and wedges is part of restorative technique; coronal polishing is a cosmetic/cleaning procedure. While RDAs may assist with these tasks under supervision, they aren’t identified as infection-control functions.