(a) This subtitle does not prevent a person who is the administrator or executor of the estate of a dentist or a person who is legally authorized to act for a dentist adjudicated to be mentally incompetent from employing a licensed dentist to:
(1) carry on the deceased or mentally incompetent dentist's practice for a reasonable period, as determined by the board; or
(2) conclude the affairs of the practice, including the sale of any assets.
(b) This subtitle does not prevent a licensed dentist from working for a person described by Subsection (a) during the administration of the estate or the period of incompetency.