Which type of supervision is needed for the administration of nitrous oxide (N20)?

The administration of nitrous oxide (N2O) requires direct supervision. This means that a licensed dentist must be physically present in the office and able to provide immediate assistance if needed during the administration of the gas. The reason for this requirement is primarily due to the potential risks associated with the use of nitrous oxide, including the need for monitoring the patient's vital signs and level of consciousness throughout the procedure.

Direct supervision ensures that a trained and licensed professional is available to respond to any adverse reactions or complications that may arise, thus prioritizing patient safety. It is crucial for effective communication and immediate intervention, which can be necessary when administering sedation techniques like nitrous oxide. Other types of supervision, such as general or indirect, do not guarantee the same level of oversight and responsiveness required for such procedures.