iSmile Dentistry :: Our Doctors

Dr. Hudson S. Johnston, D.D.S.

Dr. Hudson S. Johnston Graduated from the University of Louisville School of Dentistry. Having a particular interest in advanced dental surgeries he completed a 3 year surgical residency, which included specialty training in the treatment of gum diseases and the placement of dental implants. During his advanced training he had the opportunity to participate in several clinical studies involving bone grafting for the placement of dental implants and bone regeneration around natural teeth with advanced gum disease. He is always looking for the most advanced treatment methods to improve treatment outcome and patient satisfaction.

When you meet Dr. Johnston, you will find him to be very easygoing and personable. He feels that open communication is the key to an excellent and satisfying treatment outcome for both patient and the doctor.

Dr. Johnston spends much of his free time involved in the activities of his 5 children. From Boy Scouts to horses to ATVs there is never a dull moment when not in the office.

Dr. Jason Barton, D.D.S.

Dr. William L. Smith, Jr., D.D.S.

Dr. Smith graduated from Muhlenberg College in 1971 and Temple University school of Dentistry in 1976. Dr. Smith was born in Scranton, Pa. He was a past president and chairman of the board of the Scranton District Dental Society. He is a member of the ADA, PDA, and S.D.D.S. and the Pierre Fauchard Academy. He has 3 children and 3 grandchildren. He loves to ski, golf, travel and spending time with his family.

Dr. Harry E. Collins, Jr., D.M.D.

Dr. Harry Collins has been practicing exceptional dentistry since 1974. For the last 37 years, Dr. Collins has provided high quality dental care in the Phoenix and the Tucson area. His practice focuses on general and cosmetic dentistry including orthodontics, endodontics, laser periodontics and prostodontics. In addition to providing superb care to his patients, Dr. Collins has been a clinical instructor helping insure that the next generation of dentists continues in Dr. Collins’s tradition of excellence.

Dr. Collins wasn’t always a dentist his first endeavor was a chemical engineer for approximately 4 years. He always wanted to be a dentist because of his enthusiasm to help people. Dr. Collins finds that the dental health to be a huge part of one’s health and he is a big believer of his patients being educated on their oral hygiene and its strong connection to their overall health.

Dr Collins received his Bachelor of Science Degree in Chemical Engineering from the University of Kansas in 1967 and then pursued his dream of dentistry and obtained his Doctor of Dental Medicine from University of Pennsylvania Honors Program in 1974. Since the day he became a dentist Dr Collins has believed in the importance of keeping up with today’s technology in the medical/dental field. He has acquired numerous certificates. A few are Invisalign, Neuromuscular Training with the K-7 unit, laser certification and many more. He is also affiliated with Academy of Laser Dentistry, American Academy of Cosmetic Dentistry, and the International Academy of Comprehensive Aesthetics Dr. Collins has been and still is dedicated in creating beautiful and healthy smiles. He is always continuing his education to be the most excellent and current in today’s dental field.

Dr. Marcus Pope, D.D.S.

Dr. Pope did his undergraduate schooling at B.Y.U. and later went to dental school at Virginia Commonwealth University. He did his general practice residency in Oklahoma City. He has also worked at the Virginia Medical Center. Dr. Pope has been with our practice for 2 years. He is a very skilled general dentist. He loves skiing, wake boarding and mountain biking. He has a 3-year-old son and has 1 on the way.

Dr. Matthew Harris, D.D.S.

Dr. Harris received his Associates degree from Weber State University and his Bachelor’s from B.Y.U. He graduated from Virginia Commonwealth University dental school. Dr. Harris enjoys performing all aspects of dentist, including root canals, extractions, and orthodontics. Dr. Harris is the proud father of two beautiful girls. He enjoys playing sports, fishing, camping and spending time with his family.