Final answer:
A REGISTERED HYGIENIST EXTENDED FUNCTIONS (RDH-EF) is allowed to perform cord retraction, which could be under general or direct supervision, dependent on state regulations.
Step-by-step explanation:
A REGISTERED HYGIENIST EXTENDED FUNCTIONS (RDH-EF) is a dental professional who has obtained additional certification to perform expanded duties within a dental office. One of those duties can include cord retraction, which is a procedure used to gently push back the gingival tissue surrounding a tooth.
This is typically done to create a clear area for dental impressions or to prepare a tooth for a restoration procedure. Whether an RDH-EF can perform cord retraction under general or direct supervision can differ depending on state regulations.
General supervision means that the dentist does not need to be present when the procedure is performed, while direct supervision requires the dentist to be present during the procedure. It is crucial for RDH-EFs to be aware of and comply with the specific guidelines set forth by the regulatory bodies within their practising jurisdiction.