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State of Washington Classified Job Specification


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Class Code: 292F
Category: Health Care


Performs oral prophylaxis; conducts a dental hygiene education program; directs student dental hygienists; performs expanded dental hygiene duties delegated by a dentist.

Distinguishing Characteristics

Under general supervision, performs expanded dental hygiene technical and restorative dental procedures and periodontal therapy in conjunction with dental students, dentists and physicians.

Typical Work

Performs primary dental hygiene duties including:  reviews patient health history; conducts preliminary oral examination including periodontal charting; takes intra-oral photographs; takes vital signs; performs oral prophylaxis including sub-gingival and supra-gingival scaling, root planing and soft tissue curettage; applies fluoride treatments and sealants;  

Takes impressions for diagnostic models; retracts gingival tissue prior to impression; fabricates temporary restorations; adapts stainless steel crowns and perform other duties as provided by the State of Washington's dental laws;  

Exposes and processes X‑rays; performs dental prophylaxis; performs preliminary oral examinations; 

Educates patient in oral hygiene, including dietary analysis; performs periodontal charting; 

Injects local anesthetic for restorative and surgical procedures  

Administers nitrous‑oxide‑oxygen analgesia; 

Performs root planning and soft tissue curettage; 

Applies rubber dam to isolate teeth; 

Places cement base; places amalgam matrix bands and wedge; condenses and carves amalgam restorations; 

Adjusts occlusion following removal of rubber dam; adapts celluloid matrices for placement of composite resins; inserts and finishes composite resin restorations; 

Retracts gingival tissue prior to impression; fabricates temporary restorations in crown and bridge procedures; places and removes temporary restorations; fits and cements stainless steel crowns; 

Performs other work as required.

Knowledge and Abilities

Knowledge of:  principles, techniques, terminology, and practices of dental hygiene; normal and abnormal conditions of the mouth; community health organizations and agencies concerned with dental health; preventive dental health services. 

Ability to:  establish and maintain cooperative working relationships with professional and lay groups; speak effectively before groups and present information in a clear and concise manner; render prophylactic treatment to patients; perform expanded dental hygiene duties.

Legal Requirement(s)

A valid Washington State license as Dental Hygienist. 

There may be instances where individual positions must have additional licenses or certification. It is the employer’s responsibility to ensure the appropriate licenses/certifications are obtained for each position. 

Desirable Qualifications

A valid Washington State license as Dental Hygienist and two years of experience as a Dental Hygienist.

Class Specification History

New class, consolidates 6465 Dental Hygienist and 54170 Dental Hygienist 2; adopted May 10, 2007, effective July 1, 2007