New Patients are welcome!

Some of our services

Crowns (Caps)

Crowns (Caps)

Crowns (Caps)

Crowns (Caps)

About Gary Riddle D.D.S.

Dr. Gary Lynn Riddle (DDS) has been practicing dentistry since 1982 after receiving his degrees from Southeast Missouri State University and University of Missouri Kansas City (UMKC). Dr Riddle has remained at his current location, 1420 Main Street in Scott City, for the past 20+ years. He supports his community by offering pre-school hygiene examinations to the children in the local Head Start, donating numerous dental supplies to charity events, volunteering on SMILES OF HOPE (Website) in Dexter, MO and also sponsors and endorses a variety of high school sports teams.

Smiles of hope

Smiles of Hope is a ministry of Lighthouse Church of Dexter, MO.  Licensed dentists from across the state volunteer their time and expertise at the clinic events.  Some patients have come from as far as West Virginia for this service.

Dr. Gary Riddle D.D.S. is proud to be a part of this professional team

Tooth extraction clinics are held every month but pre-registration is required. Smiles of Hope is currently registering people for the January Clinic. To register online go to Once there click on the outreach tab and follow the prompts. You can also fill out our online form HERE.  If you have any questions please call (573)624-2500 ext 6.

What do customers say?

Mark S.

Best dentist ever

Our whole family have been seeing Dr. Riddle for years. They have such a great staff. Always friendly & always do a great job. Super Awesome with the kids.

Jamie B.

Great service and very friendly

Was very glad I was referred to Dr. Riddle. The experience was wonderful. Treated with utmost respect.

Deborah H.

We offer a convenient discount plan for customers without insurance