Mich. Comp. Laws § 550.353

Sec. 3. A nonprofit dental care corporation is subject to regulation and supervision by the commissioner of insurance as hereinafter provided. Any law of this state now or hereafter in force relating to insurance or corporations engaged in the business of insurance shall not apply unless such law specifically, in exact terms, applies to nonprofit dental care corporations. A nonprofit dental care corporation may not be incorporated in this state except under the provisions of this act, but nothing herein contained limits the corporations formed under Act No. 108 of the Public Acts of 1939, being sections 550.301 to 550.316 of the Compiled Laws of 1948, in providing care to subscribers.