He was active in research related to child behavior in the dental environment, orthodontic diagnostic systems, orthodontic outcomes of treatment, and vertical facial development. He also served a Pediatric Dentistry graduate program director for 5 years. In 1991, Henry left the University of North Carolina and was appointed Dean at Ohio State University. In that role, he has also served as Chair of the Dentistry Department of Ohio State University Hospital and is on the staff at Columbus Children's Hospital. Additionally, he continues to teach in pediatric dentistry and orthodontics, conduct research and publish in the refereed literature.
Fields also continues to provide private patient care in orthodontics.
Henry has served as a reviewer for Referee for Pediatric Dentistry, Anesthesia Progress, Angle Orthodontist, Journal of Dental Research, and on the editorial board of Pediatric Dentistry. Fields has served organized dentistry and dental education in various manners. He served the ADA through the President's Commission of Accreditation Review, membership on Committee G and the Council on Dental Education. For the last four years he has been a member of the Commission on Dental Accreditation as one of the ADEA representatives and was vice-chair of the Commission for the last two years. On a local level, he has been a member of the Executive Board of Columbus Dental Society for a number of years and secretary.