A. Any dental assistant employed by a licensed dentist on the effective date of this Section and for a period of at least one year prior to the effective date of this Section shall be deemed to be authorized to take dental x-rays.
B. Any dental assistant who does not meet the employment criteria set forth in Subsection A of this Section shall attend and successfully complete a course in x-ray function and safety approved by the board within six months after commencement of employment by a licensed dentist. Any such assistant shall be deemed to be authorized to take dental x-rays only upon compliance with this Subsection.
C.(1) The dentist employer shall certify to the board that any dental assistant employed by him meets the employment criteria set forth in Subsection A of this Section, has attended and completed a course in dental x-ray function and safety, or has not attended such course but has been employed less than six months.
(2) Such certification shall be required upon renewal of any dental license by the dentist.
D. A dental assistant shall perform all dental x-ray functions solely under the direct supervision of a licensed dentist and on the premises of the dental office.