Section 25-13-1-3 - Necessity of license; Class B misdemeanor(a) Except as otherwise provided in this chapter, it is unlawful for any person to practice dental hygiene in Indiana without a license from the board authorizing that person to practice dental hygiene in this state.(b) A person who knowingly or intentionally violates this section commits a Class B misdemeanor.(Formerly: Acts 1945, c.90, s.3.) As amended by Acts1981 , P.L. 222, SEC.110; P.L. 30-2005, SEC.1.