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Dental Expanded Function Dental Auxiliary

Dental student and teacher working with student

Dental Expanded Function Dental Auxiliary - Certificate

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This 18-credit part-time certificate program is designed to prepare certified Dental Assistants and licensed Dental Hygienists to become licensed in Washington State as an Expanded Function Dental Auxiliary (EFDA).

Course content is designed to prepare students for the Washington Restorative Exam (WARE) and the restorative portion of the Western Regional Examining Board (WREB).

The program combines didactic, laboratory, and clinical instruction to prepare EFDA's for such duties as placing and contouring restorations, final impressions, and performing certain dental assisting procedures under general supervision.

Employment Information

89% BTC graduate placement rate

$34,965 starting annual wage
$41,038 average annual wage
$47,986 potential annual wage
  • Employment and Wage Data Sources

    BTC graduate employment rates:
    The graduate employment rate reflects placement rates of students who graduated from BTC in 2014-15, 2015-16, and 2016-17. The Washington State Board for Community and Technical Colleges Data Linking for Outcomes Assessment database pulls from Unemployment Insurance (UI) data across Washington and Oregon. UI data do not reflect BTC graduates who (a) are employed in states beyond those listed above or outside of the United States, (b) are self-employed, (c) are active duty members of the armed forces, (d) continued on to another educational institution, and/or (e) did not provide a social security number while enrolled at BTC.

    Washington State Employment Security Department 2018 Occupational Employment and Wage Estimates ( reflect 2014-2017 employment

    Starting annual wage = 25th percentile
    Average annual wage = 50th percentile
    Potential annual wage = 75th percentile

Entry Information

When Can I Start?

This 3-quarter part-time certificate program accepts program-ready students using a first-come, first-served waitlist. Applicants must have a sponsoring dentist who will mentor them and provide access to a sufficient number of clinical experiences.

Applications are accepted in spring for a fall quarter start.

In order to apply, students will need to submit the EFDA Application Form, proof of training and work experience or current certification, and Sponsor Agreement Form. Before applying students must have all admissions requirements on file with BTC. Incorrect or incomplete applications will not be considered.

Students are encouraged to meet with the Allied Health College Navigator, Laura Doss for more information about how to apply to the EFDA Program. Appointments can be scheduled by emailing

EFDA Program Overview & Admission Application


What are the Minimum Entry Requirements?

  • ACCUPLACER NextGen placement test scores (or other equivalent assessment) demonstrating placement into ENGL&101, OR submit official transcripts verifying completion of Applied English (AENGL 100) or English Composition I (ENGL& 101). Transcripts must be sent to the BTC Admissions office. More info can be found on the BTC Transfer Student
  • Submit completed application form and documentation.

Physical Requirements

AFTER admissions acceptance into the program and prior to beginning program classes students must submit proof of all Clinical Placement Requirements.

  • Information on the clinical placement requirement process is located in the Program Overview & Admission Application.
  • This program requires a criminal history background check prior to attending the clinic practicum. Criminal History Background Check Information Sheet

What are My Next Steps?


Total Program Credits: 18

  • Quarter 1

  • Quarter 2

  • Quarter 3


Program Outcomes

  • Recognize the role and laws of the EFDA in expanding access to care;
  • Take final impressions on a typodont;
  • Recall procedures for coronal polish, radiographs, fluoride treatment, sealants, oral hygiene instruction, and infection control;
  • Place amalgam restorations on a typodont and on a patient, restoring function and anatomy to harmonious form;
  • Place composite restorations on a typodont and on a patient, restoring function and anatomy to harmonious form.
  • Identify the laws as they pertain to dentistry in general and EFDA's in particular.
  • Apply ethical behavior in all professional interactions.
  • Identify means of locating reliable information for professional growth and answering clinical queries.
  • Apply critical thinking skills to sort through information.
  • Utilize evidence based decision making to solve clinical queries.
  • Value the need to respect cultural diversity in all interactions.
  • Identify several common pharmacologic agents encountered in dentistry, their uses, contraindications and complications.
  • List factors to consider when taking an impression including patient and tissue management.
  • Describe factors to consider when placing amalgams including material properties, mercury safety, patient and operating field management.
  • Describe factors to consider when placing composites including material properties, bonding, patient and operating field management.

Employment Outlook

Faculty & Support

Photo of Karen McGuinn
Karen McGuinn

  • Degrees and Credentials

    Dental Assisting Certificate, Bellingham Vocational Technical Institute - 2004

    WA Professional Technical Certification - 2004

    Registered Dental Assistant, Washington State - 2004

    Certified Dental Assistant - 2004

    AAS-T, Professional Technical Education, Bellingham Technical College - 2004

    Certified Preventive Functions Dental Assistant - 2004

Photo of Laura Doss
Laura Doss

Laura Doss has been at BTC for 10 years in the roles of Academic & Career Advisor, Student Navigator, Instructor, Completion Coach and now College Navigator for the Allied Health Programs. Laura earned her Bachelor of Science while serving in the US Army and stationed in Germany and her Master of Education while stationed at Fort Sill, OK. Her initial education and training was in the mental health field before moving into education. Outside of work, Laura likes to spend time with her four kids, walking the trails, cuddling with her tiny dog and reading a ton of books!

Photo of Alisa Wollens
Alisa Wollens