Expanded Function Dental Auxiliary (EFDA) Certificate of Completion

The three-quarter Expanded Function Dental Auxiliary (EFDA) Certificate of Completion program prepares students to expand their dental assisting duties within the dental industry. You will learn about EFDA through lecture, hands-on experience, and clinical experience in the field. Our expert instructors and licensed dentists will demonstrate patient procedures, and you will learn EFDA procedures in our state-of-the-art Dental Education Clinic in the new Health Education Center on Beacon Hill.

What You'll Learn Get Started

Career Opportunities

Expanded Function Dental Auxiliaries (EFDAs) increase the completion of restorations, allowing dentists to increase their productivity in delivering these services to the community. Currently, registered dental hygiene practitioners are licensed to perform these restorative duties; however, they are underutilized in this capacity because traditional periodontal care is in high demand. Less than 30% of registered dental hygienists are performing restorative functions.

According to the U.S. Bureau of Labor Statistics dental assisting jobs, including EFDAs, will grow 10 percent between 2020-2030. You will gain the knowledge and skills to building upon your existing knowledge in the dental assisting profession.


The EFDA program has received approval from the Dental Quality Assurance Commission (DQAC) of the Washington State Department of Health. The DQAC regulates EFDA educational programs and EFDA licensees.

Department of Health
Dental Quality Assurance Commission
P.O. Box 47852
Olympia, WA 98504-7852

Seattle Central College's EFDA program is intended to meet the educational requirements for licensing in the State of Washington only. Seattle Central College has not determined if the EFDA curriculum meets the educational requirements for licensing/certification in any other state. Additional information about licensure/certification concerns can be found on the NC-SARA webpage. Please contact eLearning with any questions at eLearning@seattlecolleges.edu.