Or. Admin. R. 818-042-0070 - Expanded Function Dental Assistants (EFDA)

The following duties are considered Expanded Function Duties and may be performed only after the dental assistant complies with the requirements of 818-042-0080:

(1) Polish the coronal surfaces of teeth with a brush or rubber cup as part of oral prophylaxis to remove stains providing the patient is checked by a dentist or dental hygienist after the procedure is performed, prior to discharge;
(2) Remove temporary crowns for final cementation and clean teeth for final cementation;
(3) Preliminarily fit crowns to check contacts or to adjust occlusion outside the mouth;
(4) Place temporary restorative material (i.e., zinc oxide eugenol based material) in teeth providing that the patient is checked by a dentist before and after the procedure is performed;
(5) Place and remove matrix retainers for alloy and composite restorations;
(6) Polish amalgam or composite surfaces with a slow speed hand piece;
(7) Remove excess supragingival cement from crowns, bridges, bands or brackets with hand instruments providing that the patient is checked by a dentist after the procedure is performed;
(8) Fabricate temporary crowns, and temporarily cement the temporary crown. The cemented crown must be examined and approved by the dentist prior to the patient being released;
(9) Under general supervision, when the dentist is not available and the patient is in discomfort, an EFDA may recement a temporary crown or recement a permanent crown with temporary cement for a patient of record providing that the patient is rescheduled for follow-up care by a licensed dentist as soon as is reasonably appropriate; and
(10) Perform all aspects of teeth whitening procedures.


Or. Admin. R. 818-042-0070
OBD 9-1999, f. 8-10-99, cert. ef. 1-1-00; OBD 1-2004, f. 5-27-04, cert. ef. 6-1-04; OBD 3-2005, f. 10-26-05, cert. ef. 11-1-05; OBD 2-2009, f. 10-21-09, cert. ef. 11-1-09; OBD 3-2015, f. 9-8-15, cert. ef. 10/1/2015; OBD 2-2016, f. 11-2-16, cert. ef. 3/1/2017; OBD 2-2019, amend filed 10/29/2019, effective 1/1/2020

Statutory/Other Authority: ORS 679 & 680

Statutes/Other Implemented: ORS 679.020, 679.025 & 679.250

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