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With three locations, Associated Pediatric Dentistry proudly provides the best dental care to children in the Belleville, O’Fallon, and Glen Carbon areas. Our doctors are knowledgeable and passionate about what they do. At Associated Pediatric Dentistry, we take the oral health of our young patients very seriously and understand going to the dentist can make some children anxious, so we work to make them feel calm and comfortable during their visit with their dentist.

Meet Our Doctors

Kevin C. Beyersdorfer, D.D.S.

Known to many of his patients as Dr. Kevin, Dr. Beyersdorfer has been with the practice since 1991. He attended the University of Illinois College of Dentistry, where he received his degree in Pediatric Dentistry. He also attended the University of Illinois in Champain/Urbana for his Bachelor’s of Science degree. Additionally he’s worked as an instructor at the Southern Illinois University School of Dentistry.

Dr. Kevin is also on staff at Memorial Hospital in Belleville, Illinois. To give back to the community, he volunteers giving presentations to local schools. Past member of the St. Clair County Mental Health Board and served for six years on Althoff Catholic School Board. He is actively involved in St. Teresa School and Parish and serves as a Eucharstic Minister.

Dr. Kevin is a member of the American Dental Association American, Academy of Pediatric Dentistry, Illinois State Dental Society and the St. Clair District Dental Society. Dr. Kevin is also a Diplomat with the American Board of Pediatric Dentistry.

Dr. Kevin’s home is in Belleville with his wife and four daughters. They love to travel, and enjoy the arts. He attends all his kids’ sporting events and has become an active member in their school’s community. Dr. Kevin enjoys baking and often donates many of his goods to school functions. You may recognize his name because his family owned and operated “Beyersdorfer Pastry Shop” in Metro East.

Dr. Tieg Selberg, D.D.S.

Dr. Tieg Selberg is a native of Kansas City, Kansas. Dr. Selberg earned his degree in Biology from the University of North Carolina Asheville. After a career in sales, he took the leap to pursue his dream of dentistry, graduating from the University of Minnesota with a Doctorate of Dental Surgery. Dr. Selberg was very active in dental school, including outreach programs and a dental mission to Guatemala. Dr. Selberg was also the recipient of the “Quality Care in a Caring Manner” award for his graduating class.

Following graduation, Dr. Selberg completed a one year general practice residency at Hennepin County Medical Center in Minneapolis, MN and then a two year pediatric dental residency through the University of Minnesota. He is a Board Diplomat of the American Board of Pediatric Dentistry, as well as a member of both the American Academy of Pediatric Dentistry and the American Dental Association.

As a pediatric dentist, Dr. Selberg wants each visit to the office to be fun and educational for both patients and parents — the end goal being preventative dentistry. Dr. Selberg and his wife, Gretchen, have two boys, Berik and Soren, and a daughter, Astri. When he is not working on little teeth, Dr. Selberg can be found on the sidelines of his children’s sporting events. He also enjoys running, canoeing, listening to music and playing soccer (old-man league!). Dr. Selberg and his family look forward to being part of the Metro East Community.

Dr. Keith Rice, D.D.S.

Dr. Keith Rice grew up outside of the Dallas/Ft. Worth area. He graduated from  Flower Mound Marcus High School and went on to earn his dental degree from Indiana University School of Dentistry in 2002.

After several years of practicing general dentistry, Dr. Rice elected to further his education, completing a two year residency through Texas A&M University Baylor College of Dentistry). This specialty degree has allowed Dr. Rice to focus his area of work where he excels and finds it most rewarding — working with children! He is a Board Diplomat of the American Board of Pediatric Dentistry, as well as a member of both the American Academy of Pediatric Dentistry, and Southwest Society of Pediatric Dentistry.

Providing outstanding patient service is Dr. Rice’s number one goal. He achieves this by always practicing with integrity and establishing a good rapport with both patients and their families. It is important to Dr. Rice to serve the community he lives in. While Dr. Rice and his daughter, Teagan, are Texas natives, they are excited to make home in the Metro East where they are reuniting with family who live in the area.

Dr. Rice enjoys staying active and participates in a number of outdoor activities including golf, football, hunting and fishing. All that activity makes a guy hungry; luckily Dr. Rice also loves to cook! But cleaning the dishes, not so much. Dr. Rice looks forward to making your child’s visit an enjoyable one.

Dr. Mara Ganim, D.D.S.

Dr. Mara Ganim grew up in Cincinnati, Ohio. She finished her undergraduate education at Coastal Carolina University outside of Myrtle Beach, South Carolina. She completed dental school at University of Louisville School of Dentistry. After dental school she completed a residency in advanced education in general dentistry at SIUE. After a year of working in private practice in St. Louis, Dr. Mara missed working with kids. She completed her residency training in pediatric dentistry at St. Louis University. She was a part of the first class of the new pediatric dentistry residency program at SLU, which was associated with Cardinal Glennon Children’s Hospital. Through her training she got a lot of experience working with kids with special health care needs. Dr. Mara is a member of the American Academy of Pediatric Dentistry, American Dental Association, Missouri Dental Association, St. Louis Dental Society, and a member of the Young Dentist’s group through the St. Louis Dental Society.

She wants to make sure your child has a fun, enjoyable dental experience. She likes to have fun while providing excellent care. You might catch her singing and dancing while working, so you might want to bring your ear plugs! Her goal is to have every child leaving with a smile!

Dr. Mara got married in September 2018. Her and her husband, Bryan, live in St. Louis with their Golden Retriever named Weller. She enjoys spending lots of time outside with Weller, so please excuse the dog hair. She also enjoys going to Cardinals games and Blues games. She is still sadly a die-hard Cincinnati Bengals fan, so give her your sympathy in the fall. Dr. Mara is very excited to meet you and get to know you and your family.

Retired Doctors

John R. Markarian, D.M.D.

Known to many of his patients as Dr. John, Dr. Markarian has been treating patients since 1979. He’s been in the business a while and has provided excellent care throughout the years. He obtained his Doctor of Dental Medicine degree from Southern Illinois University/School of Dental Medicine. In addition, he completed a residency in pediatric dentistry at the University of Missouri-Kansas City and a hospital residency at Children's Mercy Hospital.

Dr. Markarian also works at the Memorial Hospital in Belleville and does volunteer work, presenting to schools in the area.

Dr. Markarian is a member of the American Dental Association, Illinois State Dental Society, American Academy of Pediatric Dentistry, Illinois Society of Pediatric Dentistry and the St. Clair District Dental Society, of which he served as president, president-elect and program chairman. Dr. Markarian has also achieved Diplomat status with the American Board of Pediatric Dentistry.

Dr. Markarian lives in Belleville with his wife Debra; they have two children and one grandchild. He also loves playing tennis, skiing, mountain biking, and fitness. Staying in shape keeps him healthy and happy, which means he’s able to provide your family with the best possible dental care.

Gerusa Mello-Burstadt, D.D.S.

Known to many of her patients as Dr. Mello, Dr. Mello-Burstadt has been board certified and in private practice for over twenty-five years. Her Doctor of Dental Sciences degree is from PUC Catholic University, Brazil. Her pediatric dentistry residency, which she completed in 1988, is from the University of Illinois Chicago. After completing this, she worked for ten years teaching pediatric dentistry at the University of Illinois. She is fluent in both Spanish and Portuguese.

Dr. Mello-Burstadt also works at the Memorial Hospital in Belleville and does volunteer work, presenting to schools in the area.

She is actively involved with the American Academy of Pediatric Dentistry, is a Diplomat of the American Board of Pediatric Dentistry, the Illinois Society of Pediatric Dentistry, the Illinois State Dental Society, St. Clair District Society and the American Dental Association.

Dr. Mello-Burnstadt and her husband, Michael live in Edwardsville, Illinois and spend their free time traveling and being with their kids, dogs, and cats.