Which of the following tasks can dental hygienists perform under general supervision?

Dental hygienists are permitted to perform certain tasks under general supervision, which refers to procedures that can be done without the direct presence of a dentist on the premises, as long as the dentist has provided prior authorization for the task. Removing sutures is among the tasks that fall under this category. This procedure can be performed by dental hygienists as it does not require the level of complexity or critical decision-making necessary for tasks that demand direct supervision or intervention by a dentist.

The other options listed involve more advanced skills or responsibilities that require direct supervision or oversight by a licensed dentist. Performing root canals, for example, is a complex procedure that requires specialized training and expertise in endodontics, necessitating immediate supervision by a dentist. Similarly, prescribing medication is a function strictly reserved for licensed dentists and physicians, as it requires a level of medical authority and thorough knowledge of pharmacology that is beyond the scope of dental hygiene practice. Administering general anesthesia involves significant risk and requires advanced training and certification, which is not included in the scope of practice for dental hygienists. Thus, removing sutures is a task appropriately assigned to dental hygienists operating under general supervision, aligning with the regulations established in dental hygiene practice.