Halstead, Judy H.: - Judy Halstead, CDA, is the former Dental Assisting Program Director for a private college and a high school skills center. Now retired, she also worked as a dental assistant and an enthusiastic industry representative for more than 30 years. As a president of the Washington Dental Assistant Association, Ms. Halstead often delivered lectures and workshops at local, state and regional dental conferences as well as served as an industry consultant. She earned a BA from Eastern Washington University and is a Certified Dental Assistant with an Expanded Functions certificate.