Notwithstanding any other provision of law, a registered dental hygienist in alternative practice may operate a mobile dental hygiene clinic provided by the licensee’s property and casualty insurer as a temporary substitute site for the practice registered by the licensee pursuant to Section 1926.3, if both of the following requirements are met:
(a) The licensee’s registered place of practice has been rendered and remains unusable due to loss or calamity.
(b) The licensee’s insurer registers the mobile dental hygiene clinic with the dental hygiene board in compliance with Section 1926.3.