Which of the following is NOT a function of an RDH under direct supervision?

Under California dental law, the functions of a Registered Dental Hygienist (RDH) operating under direct supervision encompass a range of clinical procedures, each with specific requirements. Direct supervision means that a licensed dentist must be physically present in the facility while the RDH performs certain tasks.

The act of performing examinations is generally not included as a function of an RDH under direct supervision. Instead, examinations are traditionally reserved for licensed dentists, who assess the overall dental health and diagnose any issues. While RDHs can support and assist in the examination process, they do not independently conduct examinations under direct supervision. Therefore, this option correctly identifies a task that is not within the scope of what an RDH can do under direct supervision.

In contrast, administering local anesthesia, providing prophylaxis, and performing soft-tissue curettage are all procedures that an RDH can perform under the direct supervision of a dentist, provided they have the required training and certification. These tasks fall within the scope of practice outlined for RDHs, showcasing their important role in patient care.