Dental Staff

The Dental Center at Thornton Plaza has been serving the Thornton community for 30 years. Our family of well-established, highly qualified dental professionals have helped us earn our exceptional reputation as leaders in the higest quality dental care. Our staff takes a great deal of pride in our office and views colleagues as family members. This level of support and respect is carried over to our patients, as they also care for each of our patients with respect and kindness. As a team, we do our very best to reduce the level of anxiety which is sometimes associated with dental care.

Mark P. Smith, D.D.S.

Raised on a farm in eastern Washington state, Dr. Smith completed his Bachelor of Science degree at Brigham Young University in Provo, Utah, in 1983. Upon graduation from the University of Washington School of Dentistry in Seattle in 1987, he moved to Colorado.

Dr. Smith loves the practice of dentistry and has been a partner at The Dental Center for nearly 25 years. He enjoys memberships in numerous professional organizations and study clubs, including the American Dental Association, the Colorado Dental Association, and the Metropolitan Denver Dental Society. Dr. Smith places high value on continuing education to keep abreast of the ever-changing technology and improvements in dentistry. He has also been recognized as a Colorado Top Dentist for the past 5 consecutive years.

Mark is married to his charming wife, Annette, and has three beautiful daughters. A lover of all things outdoors, he is particularly passionate about road and mountain biking, competing in many events. 

Dr. Smith is acknowledged as a Top Dentist in the 5280 Magazine.


Brian R. Kelly, D.D.S.

Dr. Kelly received his baccalaureate from Hunter College, Summa Cum Laude, in New York City. He received his doctorate from the University of Colorado School of Dentistry, Cum Laude. He has practiced at The Dental Center since 1995. Prior to going into dentistry, Dr. Kelly performed in four Broadway musicals and still occasionally performs in shows at the Arvada Center. He has practiced at The Dental Center since 1995.

Dr. Kelly is also a member of the American Dental Association, the Colorado Dental Association, the Metropolitan Denver Dental Society, and the Colorado Prosthodontics Society. He serves on the Board of Directors for Dental Lifeline Network/Colorado Foundation for Dentistry for the Handicapped which offers services to handicapped adults and medically compromised patients.

Brian is married to Nanci Young and they have two daughters, Lorraine and Vanessa. An avid runner, Dr. Kelly's goal has been to compete in marathons in all of the U.S. states.

Dr. Kelly is acknowledged as a Top Dentist in the 5280 Magazine. 


Jonathan L. Olivier, D.D.S.

Dr. Olivier received his Doctor of Dental Surgery from the University of Colorado in 2002. He received his Bachelor of Science in Molecular Biology from Brigham Young University in 1997 prior to being accepted to Dental School in 1998.

Dr. Olivier has enjoyed working at The Dental Center since July 2002, and has been a partner for much of that time. He feels that it has truly been a great place to practice dentistry and he couldn't ask for better partners or staff to associate with. Jon is a member of the American Dental Association, the Colorado Dental Association, the Metropolitan Denver Dental Society, the Colorado Prosthodontic Society and the local 5280 Study Club.

Jon has been married to his wonderful wife, Sara, since October 1997. They have been blessed with three great children, Seth, Elizabeth, and Eva. Along with spending time with his family, he enjoys staying active by playing basketball, softball, and hiking 14ers.

Dr. Olivier is acknowledged as a Top Dentist in the 5280 Magazine. 


Dental Hygienists

We have four licensed hygienists serving our patients. Our hygienists are a valuable component of our commitment to quality dentistry. A hygienist is a trained and licensed professional who has completed a college degree in dental hygiene, obtaining either an associates or bachelors degree. Dental Hygienists are specialists in the prevention and early treatment of periodontal disease and are invaluable in assisting patients achieve and maintain optimal oral health. Education and prevention is a critical focus of our office and our hygienists are specifically trained to educate and assist you, our patient, to achieve and maintain your oral health.
We encourage you, when possible, to see the same hygienist each time you come. This approach not only allows you to have a personal relationship with your preventive care provider, but also allows for more complete evaluation of your improvements over time.


Dental Assistants

Our dental assistants are invaluable in the delivery of good dental care and they are the first line of defense against tooth and gum disease. We have a great staff of five trained dental assistants who work with all of our dentists. They help to prepare our patients for dental procedures and can answer questions about oral health.
They assist the doctor chairside in all dental procedures from crowns to extractions. They are responsible for taking radiographs, impressions, making temporary crowns, arranging laboratory cases, the maintenance of supplies and equipment, and keeping strict adherence to OSHA sterilization/disinfection protocols.


Front Office Staff

More information coming soon