Roughly three-quarters of Alaska is inaccessible by automobile, and dental care is provided, in many cases, by small dental teams sent to remote villages by the Indian Health Service. Since 2006, Dental Health Aide Therapists (DHATs) have been trained through a collaboration of the Alaska Native Tribal Health Consortium and the University of Washington School of Medicine's Physician's Assistant Program at facilities in Anchorage and Bethel, Alaska.
