All of the following are exempt from chapter 466 except?

The correct choice indicates a scenario where an individual is operating under specific regulations outlined in Florida law. A qualified anesthetist administering anesthesia under the supervision of a Florida licensed dentist must adhere to various legal and professional standards to ensure patient safety and the efficacy of care.

In Florida, Chapter 466 outlines the practice of dentistry, specifying who may provide dental services and under what conditions. While certain categories of individuals, like dental hygienists with licenses from other states, unlicensed persons providing emergency care, and dental assistants performing radiography, can operate under specific exemptions, they still are not recognized as licensed practitioners within the bounds of Chapter 466.

However, the role of a qualified anesthetist is tightly regulated. This person's ability to provide anesthesia hinges on direct supervision by a licensed dentist, ensuring compliance with state laws regarding the administration of anesthesia. This reinforces the importance of licensure and oversight in maintaining the standards of dental and medical practice in Florida, which the law is designed to uphold. Thus, the necessity of a licensed dentist supervising the anesthetist means that this situation falls within the scope of Chapter 466 and does not grant an exemption.