What can a dentist delegate to a dental hygienist?

• A. Final placement of appliances
• B. Administration of general anesthesia
• C. Comprehensive examination
• D. None of the above

Answer: (D)

Delegation is governed by the scope of practice for a dental hygienist and the level of supervision allowed by the state. In Louisiana, a dentist can delegate certain preventive and diagnostic tasks to a hygienist, but not tasks that require final treatment authority, anesthesia administration, or comprehensive diagnosis and treatment planning.

Final placement of appliances is a treatment step that falls under the dentist or a specialist who places and finalizes appliances. A dental hygienist does not have authority to place or finalize appliances, so this task isn’t delegated.

Administration of general anesthesia is a controlled medical procedure that requires specialized credentials and supervision. It is not within the typical scope of dental hygiene practice to administer anesthesia.

A comprehensive examination includes diagnosis and development of a full treatment plan, which is the dentist’s responsibility. A hygienist may contribute to data gathering and charting, but the comprehensive exam and treatment planning are not within the delegated duties of a hygienist.

Because none of those listed tasks are within what a dentist can delegate to a dental hygienist, the correct answer is none of the above.

For context, dental hygienists in Louisiana commonly perform prophylaxis, radiographs, sealants, fluoride application, and certain patient education under supervision, but the more complex or invasive responsibilities remain with the dentist. Always refer to the state’s current practice act for specific allowances.