1. Dentists delegating expanded-functions duties to dental assistants or dental hygienists shall do so in accordance with rules set forth by the board. No person shall perform expanded-functions duties in this state except under his or her own name and unless the board has issued to such person a permit to perform expanded-functions duties in this state; however, no provision of this section or this chapter shall be construed to make it unlawful for a duly registered and currently licensed dentist in this state to perform dental services that would be considered expanded-functions duties in this state or to make it unlawful for dental assistants, certified dental assistants, or expanded-functions dental assistants to perform polishing of teeth. Under section 332.093, the board shall not promulgate any rule allowing the delegation of acts to a dental assistant that would conflict with the practice of dental hygiene as defined in section 332.091. Expanded-functions permits shall be renewed every five years. The board may promulgate rules specifying the criteria by which expanded-functions permits may be issued and renewed. Expanded-functions permits shall be subject to discipline as provided in section 332.321.

2. Any rule or portion of a rule, as that term is defined in section 536.010, that is created under the authority delegated in this section shall become effective only if it complies with and is subject to all of the provisions of chapter 536 and, if applicable, section 536.028. This section and chapter 536 are nonseverable and if any of the powers vested with the general assembly pursuant to chapter 536 to review, to delay the effective date, or to disapprove and annul a rule are subsequently held unconstitutional, then the grant of rulemaking authority and any rule proposed or adopted after August 28, 2010, shall be invalid and void.