What is NOT a requirement for a dentist to authorize procedures performed by a dental hygienist?

The correct answer highlights that the age of the patient is not a requirement for a dentist to authorize procedures performed by a dental hygienist. In Oklahoma, the essential criteria revolve around the legal framework governing the practice of dental hygiene and the dentist's role in supervising and authorizing procedures.

The authorization by a dentist is focused on ensuring that the dental hygienist is acting within the scope of their training and the procedures performed are appropriate for the patient's condition, rather than the patient's age. Therefore, the patient's age being 18 years or older does not factor into the legal requirements for authorization.

Conversely, the other options reflect requirements that are indeed necessary. Documentation of procedures is crucial for maintaining records and ensuring that all actions taken by the hygienist are tracked and can be reviewed as needed. Furthermore, it is essential that the hygienist possesses adequate experience or competence to safely perform the procedures, as this directly impacts patient safety and the quality of care provided. Finally, having authorization in writing helps protect both the dental hygienist and the dentist, providing a clear outline of the procedures that are authorized and ensuring accountability in the dental practice.