Want to improve your smile? Dr. Halgren has helped children, adolescents and adults achieve higher self-esteem and healthier teeth through orthodontics. Dr. Halgren is a Diplomate of the American Board of Orthodontics, the only orthodontic specialty board recognized by the American Dental Association and sponsored by the American Association of Orthodontists. He has an office in Mount Vernon and utilizes Island Dental House once a month for appointments on Orcas Island.