650—23.5(153) Level 1 expanded function procedures for dental hygienists. Level 1 expanded function procedures for dental hygienists include:
	23.5(1) Taking occlusal registrations;
	23.5(2) Placement and removal of gingival retraction material;
	23.5(3) Fabrication, temporary cementation, and removal of provisional restorations following review of the fit and function by the supervising dentist, and temporary recementation of provisional restorations;
	23.5(4) Applying cavity liners and bases;
	23.5(5) Applying bonding systems, which may include the placement of the attachments used in clear aligner systems, following review of the fit and function by the supervising dentist;
	23.5(6) Taking final impressions;
	23.5(7) Placement, bonding, and removal of provisional orthodontic appliances as follows:
	a. 	Placement or bonding of orthodontic brackets and bands or provisional orthodontic appliances following review of fit and function by the supervising dentist; and
	b. 	Removal of adhesive, orthodontic brackets and bands, or provisional orthodontic appliances;
	23.5(8) Placement of temporary restorative materials following preparation of the tooth by a dentist;
	23.5(9) Extraoral adjustment to acrylic dentures without making any adjustments to the prosthetic teeth; and
	23.5(10) Tissue conditioning (soft reline only).
[ARC 4676C, IAB 9/25/19, effective 10/30/19; ARC 6733C, IAB 12/14/22, effective 1/18/23]