Registered Dental Assistant – Extended Function

Classification Specifications – H.10
Registered Dental Assistant Extended Function (9206)

April 3, 2019

Series Concept

Under the supervision of a licensed dentist, Dental Assistants perform supportive procedures in the clinical treatment of patients and/or the training of dental students and perform other duties as assigned.

Dental Assistants may examine orthodontic appliances, take impressions for diagnostic and opposing models; apply non-aerosol and non-caustic topical agents; remove post-extraction and periodontal dressings; place elastic orthodontic separators; remove orthodontic separators; assist in the administration of nitrous oxide when used as an analgesic; hold anterior matrices; remove sutures; take intra-oral measurements for orthodontic procedures; seat adjusted retainers or headgears, including appropriate instructions; check for loose bands; remove arch wires and ligature ties; apply topical fluoride after scaling and polishing by the supervising dentist or a dental hygienist; place and remove rubber dams; and place wedge and remove matrices. Cure restorative or orthodontic materials in operative site with light-curing devise, if certified in radiation safety, perform general oral radiology such as bit-wing, occlusal, and intraoral single region examination including all processing work; and assist in teaching educational programs for dental students such as televised instructions or demonstrations in classroom settings.

Class Concepts

Registered Dental Assistant Extended Function

Under general supervision and in addition to the duties listed in the Series Concept, incumbents perform complex and technical procedures assigned to dental assistants and registered dental assistants.

Under direct supervision of a dentist, incumbents may perform cord retractions of gingivae for impression procedures; take impressions for cast restorations; take impressions for space maintainers, orthodontic appliances and occlusal guards; prepare enamel by etching for bonding; formulate indirect patterns or endodontic post and core castings; fit trail endodontic filling points; and apply pit and fissure sealants.