🦷 Official Rankings
10 Best Dentists in O'Fallon, MO (August 2026)
We compared 10 dentists serving O'Fallon and Saint Charles County, Missouri, and ranked the top providers by verified reviews, ratings, and local reputation — 6,048 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by River City Endodontics. Updated for August 2026.
- Dentists ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 6,048
- Area codes
- 636, 314
River City Endodontics
⭐ 5.0 · 697 reviews
113 Church St, O'Fallon, MO 63366
Twin Oaks Family Dental
⭐ 4.9 · 1280 reviews
1133 Bryan Rd, O'Fallon, MO 63366
Smile Design Dental Center
⭐ 4.9 · 856 reviews
956 Bryan Rd, O'Fallon, MO 63366
Advanced Dentistry of O'Fallon
⭐ 4.9 · 806 reviews
2990 State Hwy K, O'Fallon, MO 63368
Boardwalk Family Dental
⭐ 4.9 · 707 reviews
7766 Winghaven Blvd, O'Fallon, MO 63368
O'Fallon Family Dentistry
⭐ 4.9 · 525 reviews
126 Triad Center W, O'Fallon, MO 63366
Northside Family Dentistry
⭐ 4.9 · 197 reviews
472 Hwy P, O'Fallon, MO 63366
Brookside Family Dentistry
⭐ 4.9 · 171 reviews
31 O'Fallon Square, O'Fallon, MO 63366
Riverheart Family Dentistry
⭐ 4.8 · 566 reviews
8618 Mexico Rd, O'Fallon, MO 63366