Indiana Dental Law 828 IAC 6-1-2 Coronal Polishing states:
Sec. 2 (a) A dental assistant who has been employed in a dental practice for a minimum of one (1) year or had graduated from a program accredited by the Commission on Dental Accreditation of the American Dental Association and who has completed the requirements in subsection (b) may polish the coronal surface of teeth under the direct supervision of a licensed dentist.
(b) A dental assistant may not polish the coronal surface of teeth until satisfactory completion of an educational program or curriculum accredited by the Commission on Dental Accreditation of the American Dental Association or approved by the board in the following order that includes, at a minimum:
(1) Five (5) hours of didactic instruction covering the following subject areas:
(A) Ethics and jurisprudence.
(B) Plaque and material alba.
(C) Intrinsic and extrinsic stain.
(D) Abrasive agents.
(E) Use of a slow speed hand piece, prophy cup, and occlusal polishing brush.
(G) Infection control.
(2) Two (2) hours of laboratory work, including a mannequin and two (2) live patients, in the use of a slow speed hand piece, prophy cup, and occlusal polishing brush and hand dexterity.
(3) Clinical competency demonstrated on a minimum of five patients under the direct observation of an Indiana dentist or dental hygienists whose license is in good standing and an affidavit certifying the competency signed by the supervising dentist and a copy given to the employee .