Section 333.16642 - Work authorization for dental laboratory work; form; contents; name or number of work authorization to accompany invoice; prohibition(1) A written authorization for dental laboratory work shall be in a form prescribed by the board and shall contain the following: (a) The name and address of the laboratory.(b) An identification of the patient by name or number.(c) The date on which the authorization was written.(d) The description of the work to be done, with diagrams if necessary.(e) A specification of the type and quality of materials to be used.(f) The dentist's signature, complete business address, and license number.(2) A dental laboratory shall return completed prescribed work to the prescribing dentist or the dentist's office with the name or number of the written work authorization accompanying the invoice.(3) A dental laboratory shall not have in its possession a prosthetic denture, bridge, orthodontic or other appliance, or structure to be used as a substitute for or as a part of human teeth or jaws or associated structures or for the correction of malocclusions or deformities, completed or being fabricated without having in its possession a written work authorization therefor.1978, Act 368, Eff. 9/30/1978 .