About Your Dentist

Caroline St John, DDS

"I love restoring patients' confidence in their oral appearance and improving their health at the same time. It's amazing to see how a beautiful smile can change someone's self image."

My Mission

"I would like my patients to say that I'm caring, compassionate and understanding of their dental needs. I want them to think of me as someone with their best interests at heart, someone that will answer any of their questions without judgment, and someone they trust and respect."


  • University of Missouri-Kansas City School of Dentistry Kansas City, MO
  • Truman State University Kirksville, MO
  • Eureka High School, Eureka, MO

Associations and Memberships

Dr. St. John is a member of the American Dental Association, American Student Dental Association, and Missouri Dental Association.

Life & Hobbies

Dr. St. John grew up in Wildwood, MO, and currently resides in Kirkwood, MO. Outside of dentistry, she enjoys reading, working out, spending time with her family and going to Cardinals games.

Sean Ehrhardt, DMD

My Mission

"To provide a complete and exceptional dental service to my patients with the best quality in dentistry. To improve their oral health and change their lives with beautiful smiles and positive dental experiences."


Southern Illinois University Edwardsville, Bachelor of Science in Biology – Edwardsville, IL

Southern Illinois University School of Dental Medicine, Doctor of Medicine in Dentistry – Alton, IL

Continuing Education & Professional Memberships


Life & Hobbies

Dr. Ehrhardt is happily married to his beautiful wife, Alex. In his free time, Dr. Ehrhardt enjoys staying active by working out, hiking, and walking his dog, Remy. He loves cooking, baking, watching movies, and watching sports. He loves cheering on the Chicago Bears and Chicago Cubs!