Emergency Dentist in O Fallon, IL

There are 15 emergency dentists in O Fallon, IL offering same-day care for tooth pain, broken teeth, dental abscesses, knocked-out teeth, and lost fillings. Average Google rating: 4.9★ based on 4,944 combined reviews. 12 practices are currently accepting new patients.

Emergency Dentists Avg Rating Accepting New Patients Online Booking Available
15 4.9★ 12 7
1

1490 N Green Mount Rd, Suite B, O Fallon, IL 62269

(618) 632-1603

4.8/5 (1037 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients
  • 📅 Online Booking

Hours: Mon: 8:00 AM - 5:00 PM, Tues: 8:00 AM - 5:00 PM, Wed: 8:00 AM - 5:00 PM, Thurs: 8:00 AM - 3:00 PM, Fri: 8:00 AM - 2:00 PM, Sat: Closed, Sun: Closed

Specialties: General Dentistry, Cosmetic Dentistry, Preventative Oral Health, Restorative Dentistry

2

1707 W Highway 50, O Fallon, IL 62269

(618) 206-5488

4.3/5 (817 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients
  • 📅 Online Booking

Hours: Mon: 8:00am - 6:00pm, Tue: 7:30am - 5:30pm, Wed: 7:30am - 5:30pm, Thu: 9:00am - 7:00pm, Fri: 8:00am - 1:00pm, Sat: Closed, Sun: Closed

Specialties: General Dentistry, Dentures, Implant Dentures, Emergency Dental Care

3

1490 N Green Mount Rd, Suite A, O Fallon, IL 62269

(618) 622-9720

4.7/5 (687 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients
  • 📅 Online Booking

Hours: Mon-Thurs: 7:30 AM - 5:30 PM, Fri-Sun: Closed

Specialties: General Dentistry, Cosmetic Dentistry, Restorative Dentistry, Preventative Oral Health

4

904 E Highway 50, O Fallon, IL 62269

(681) 632-8471

5/5 (450 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients

Hours: Monday: 7:00 am - 6:00 pm, Tuesday: 8:00 am - 6:00 pm, Wednesday: 7:00 am - 6:00 pm, Thursday: 8:00 am - 5:00 pm, Friday: 7:00 am - 12:00 pm, Saturday: Closed, Sunday: Closed

Specialties: Emergency Dentistry, Preventive Dentistry, Restorative Dentistry, Cosmetic Dentistry

5

904 E Highway 50, O Fallon, IL 62269

(186) 632-8471

5/5 (450 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients
  • 📅 Online Booking

Hours: Mon: 7:00am-6:00pm, Tue: 8:00am-6:00pm, Wed: 7:00am-6:00pm, Thu: 8:00am-5:00pm, Fri-Sun: Closed

Specialties: General Dentistry, Preventive Dentistry, Restorative Dentistry, Cosmetic Dentistry

6

4945 Stone Falls Ctr, Suite A, O Fallon, IL 62269

(618) 624-2800

4.9/5 (384 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients

Hours: Monday: 8:00 a.m. - 7:00 p.m., Tuesday: 8:00 a.m. - 5:00 p.m., Wednesday: 8:00 a.m. - 5:00 p.m., Thursday: 8:00 a.m. - 5:00 p.m., Friday: 8:00 a.m. - 5:00 p.m.

Specialties: General Dentistry, Cosmetic Dentistry, Restorative Dentistry, Preventive Dentistry

7

2010 West Highway 50, O Fallon, IL 62269

(618) 622-8888

4.9/5 (333 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients

Hours: Mon: 8:30 AM - 5:00 PM, Tue: 8:00 AM - 4:30 PM, Wed: 10:00 AM - 7:00 PM, Thu: 9:00 AM - 5:30 PM, Fri - Sun: Closed

Specialties: Emergency Dentistry, Dentistry, Pediatric Dentistry, Orthodontics & Dentofacial Orthopedics

8

4905 Stone Falls Ctr Unit A, O Fallon, IL 62269

(618) 622-3377

5/5 (243 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients
  • 📅 Online Booking

Specialties: Orthodontics, Dentofacial Orthopedics

9

1002 E Wesley Dr, O Fallon, IL 62269

(618) 628-7080

4.9/5 (239 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients

Hours: Monday: 8:30 am - 5:00 pm, Tuesday: 8:00 am - 5:00 pm, Wednesday: 8:00 am - 5:00 pm, Thursday: 8:30 am - 5:00 pm, Friday: 8:00 am - 4:00 pm, Saturday: Closed, Sunday: Closed

Specialties: Family Dentistry, Cosmetic Dentistry, Dental Implants, General Dentistry

10

904 E Highway 50, O Fallon, IL 62269

(618) 632-8471

4.8/5 (200 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients

Hours: Monday: 8am – 5pm, Tuesday: 8am – 5pm, Wednesday: 8am – 5pm, Thursday: 8am – 5pm

Specialties: Emergency Dentistry, Dentistry, Family Dentistry, Cosmetic Dentistry

11

741 W State St, Suite 2, O Fallon, IL 62269

(618) 624-0800

5/5 (100 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients
  • 📅 Online Booking

Hours: Monday: 9 am-2 pm, Tuesday: 9 am-6 pm (Lunch 1 pm – 2 pm), Wednesday: 8 am-5 pm (Lunch 12 pm – 1 pm), Thursday: 7:50 am- 5 pm (Lunch 11:30 am – 12:30 pm), Friday: Closed, Saturday: Closed, Sunday: Closed

Specialties: Orthodontics, Dentofacial Orthopedics

12

741 W State St, O Fallon, IL 62269

(618) 632-2282

5/5 (4 Google reviews)

  • ⚡ Emergency Services
  • ✓ Accepting New Patients
  • 📅 Online Booking

Hours: Monday: 7:30 AM - 4:00 PM, Tuesday: 7:30 AM - 4:00 PM, Wednesday: 7:30 AM - 4:00 PM, Thursday: 7:00 AM - 3:30 PM, Friday-Sunday: Closed

Specialties: General Dentistry, Cosmetic Dentistry, Implant Dentistry, Preventive Dentistry

What Counts as a Dental Emergency in O Fallon, IL?

A dental emergency is any situation causing severe pain, uncontrolled bleeding, or risk of permanent tooth loss that requires prompt professional care. The following conditions warrant same-day treatment:

Emergency TypeSymptomsWhat to Do
Severe ToothacheThrobbing pain, swelling, feverCall same-day; may indicate abscess
Knocked-Out ToothTooth fully dislodgedKeep moist in milk, see dentist within 1 hour
Broken or Chipped ToothJagged edge, pain on biteRinse, save fragments, call immediately
Dental AbscessPus, swelling, bad tasteUrgent — infection can spread systemically
Lost Crown or FillingExposed tooth, sensitivityTemporary cement from pharmacy; call same day
Soft Tissue InjuryBleeding gums, lip, or tongueApply pressure; seek care if bleeding persists

Frequently Asked Questions — Emergency Dentist in O Fallon, IL

Are there emergency dentists in O Fallon, IL open on weekends?

Yes. Several emergency dentists in O Fallon, IL offer Saturday and some Sunday hours. Check the office hours listed on each practice profile above — look for practices with Saturday or evening hours for the best same-day availability.

How much does emergency dental care cost in O Fallon, IL?

Emergency exam fees in O Fallon, IL typically range from $75–$200 without insurance. Treatment costs vary by procedure: a root canal runs $700–$1,500; a tooth extraction $150–$400; a dental crown $1,000–$1,800. Most practices listed above accept major dental insurance plans and many offer CareCredit financing.

Can I walk in to an emergency dentist in O Fallon without an appointment?

Some emergency dental practices in O Fallon, IL do accept walk-ins, but calling ahead is strongly recommended — it reserves a slot and ensures the dentist is prepared for your specific emergency. 12 of the 15 emergency practices listed here are currently accepting new patients.

What should I do if I knock out a tooth in O Fallon?

Pick up the tooth by the crown (not the root), rinse it gently with water, and keep it moist — ideally in a glass of milk or between your cheek and gum. Call an emergency dentist in O Fallon, IL immediately. Reimplantation is most successful within 30–60 minutes of the injury.

Which emergency dentists in O Fallon accept dental insurance?

Most emergency dentists in O Fallon, IL accept major PPO dental insurance plans including Delta Dental, Cigna, Aetna, BlueCross BlueShield, Guardian, MetLife, and UnitedHealthcare. Check each individual practice profile for the specific plans accepted, or call ahead to confirm coverage before your visit.

How quickly can I get an emergency dental appointment in O Fallon, IL?

Many emergency dental practices in O Fallon, IL can see patients the same day, often within 1–4 hours of calling. Practices with online booking (7 listed here) may allow you to schedule directly without a phone call. For life-threatening dental infections with facial swelling or difficulty breathing, go to the nearest emergency room.

What is a dental emergency vs. a routine visit?

A dental emergency involves severe pain, uncontrolled bleeding, a knocked-out tooth, a dental abscess, or a broken tooth with exposed nerve — all requiring same-day care. Routine care (cleanings, check-ups, minor sensitivity) can wait for a scheduled appointment. When in doubt, call a O Fallon emergency dentist — most practices will advise you over the phone whether you need immediate care.