Dr. Butterworth graduated from Penn State University in 1981 with a Bachelor of Science degree in microbiology. He then attended Temple University School of Dentistry earning his DDS degree in 1984, at which time he went on active duty with the U.S. Navy and spent 3 years based out of Camp Lejeune, North Carolina. Dr. Butterworth was attached to the Fleet Marine Corps, including 6 months on the U.S.S. Pensacola, stationed in The Mediterranean Sea, leaving as a Lieutenant Commander. He then completed a geriatric dental residency at The Philadelphia VA Hospital 1987-1988. From that time until 1989, Dr. Butterworth was an associate clinical instructor of clinical dentistry at Temple University. That same year he purchased Dr. Roland Reed's practice in Millsboro, and eventually moved in 2005 to the present location in Dagsboro.
Dr. Butterworth is the father of three children, two of whom are special needs, Dr. Butterworth believes that patients should be treated like family, and is a team chaperone for the Special Olympics. Presently, he volunteers for the Sussex Tech Dental Assisting Program, is a member of the American Dental Association, The Delaware State Dental Society, The Kent-Sussex Dental Society and the American Legion.