Dentist in Florissant, Missouri

Bringing healthy smiles to the St. Louis community

since 1956

Make an appointment online now by clicking here!

Our family-owned dental office is located in St. Louis, Missouri and welcomes new patients from Creve Coeur, Olivette, Ladue, Overland, and other communities in St. Louis. We invite you to come visit us!


Welcome to STL Mid County Dental

where the dentists actually listen to you

Landgraf Family Dentists
Left to right: Dr. John Landgraf, DMD, Dr. Richard Landgraf, DMD (retired), Dr. Sean Landgraf, DDS

Since 1956, our dental office has been operated by three generations of dentists who are proud members of the St. Louis community. Our commitment to excellence runs in the family. We do our best to accommodate patients in a gentle and nonjudgmental way. We are always here to listen and answer patients’ questions and calls, even on weekends. We keep up with the latest technology while offering affordable dentistry, because we want you to have healthy teeth for life!
Read more about us

We work to earn your trust


We accept many insurance plans and offer financing, specials, and payment plans for patients without insurance.


We are open during evening hours and treat the entire family (kids too!) in one office.


Feeling anxious? We provide high quality anesthesia to make treatments painless and comfortable for all patients.

Focus on prevention

We offer excellent preventive care to help you avoid serious dental problems and high expenses.

How we can help you

Our primary concern at STL Mid-County Dental is your overall health. The best insurance is always regular brushing and flossing, coupled with scheduled cleanings, fluoride treatments, and other preventive care to protect your smile from cavities and disease. We offer restorative services, including fillings, dentures, root canals, and implants, to strengthen and protect your teeth. Your smile can look better and healthier after our cosmetic treatments and teeth whitening. We also provide orthodontic services, including clear and metal braces, to adults and children. Especially for children, we recommend early treatment to avoid more costly and complicated procedures at a later date. For your comfort, we will provide you with high quality sedation options so you can relax and enjoy while we work to improve your dental health.

BBB Excellent Dentist Rating

New patients welcome! Call 314-720-6600