(a) Notwithstanding any other provision of law, upon the incapacity or death of a dentist, if the requirements of Section 1625.4 are met, any of the following persons may employ licensees and dental assistants and charge for the professional services they render for a period not to exceed 12 months from the date of the dentist’s death or incapacity without being deemed to be practicing dentistry within the meaning of Section 1625:

1. (1) The legal guardian, conservator, or authorized representative of an incapacitated dentist.
2. (2) The executor or administrator of the estate of a dentist who is deceased.
3. (3) The named trustee or successor trustee of a trust or subtrust that owns assets consisting only of the incapacitated or deceased dentist’s dental practice and that was established solely for the purpose of disposition of the dental practice upon the dentist’s incapacity or death.