Michigan StatutesAct 122 of 1939 - <font color=red>Repealed-</font>DENTISTRY (338.201 - 338.221)DENTISTRY Act 122 of 1939338.201-338.221 Repealed. 1978, Act 368, Eff. Sept. 30, 1978;—1980, Act 299, Imd. Eff. Oct. 21, 1980.