Your child lost a filling at school
A filling that falls out needs prompt dental attention. Here's what to do right now and what to expect at your child's next appointment.
Medically reviewed by Dr. Jose, DDS — September 18, 2026
Call your dentist right away
The first step is to contact your child’s dentist today or first thing tomorrow morning. A lost filling needs professional care within 24–48 hours. If your dentist’s office is closed, ask if they have an emergency line or can refer you to an urgent-care dentist.
When you call, mention that a filling fell out so the office can prioritize the appointment and have the right materials ready.
Save any pieces of the filling
If you or your child found pieces of the filling, put them in a small container and bring them to the appointment. Your dentist may be able to use them to understand what type of filling was there and why it came out.
What to do until the appointment
Avoid chewing on that side. Ask your child to eat soft foods and chew with the other side of their mouth. This protects the exposed tooth and prevents discomfort.
Don’t try at-home repair. Temporary filling kits from pharmacies are not designed for children’s teeth and can cause more damage. Only a dentist should handle the repair.
Manage sensitivity. If the exposed tooth feels sensitive to cold or pressure, your child may find relief by avoiding very hot or cold foods and drinks. If pain is significant, your dentist can advise you on what pain relief may help.
Why the filling came out
Fillings don’t fall out randomly. Common reasons include:
- Decay underneath. The tooth may have developed a new cavity around or beneath the filling.
- Wear and tear. Fillings eventually break down over time, especially with chewing.
- Trauma. A bump or hard bite on the tooth can dislodge a filling.
- Poor fit. Sometimes a filling wasn’t sealed properly from the start.
Your dentist will examine the tooth to find out why it failed. This helps prevent the same problem from happening again.
What to expect at the appointment
Your dentist will:
- Look at the tooth and take X-rays to check for decay or damage inside.
- Clean away any remaining filling material or decay.
- Place a new filling using child-safe materials.
- Check your child’s bite to make sure the new filling sits properly.
The visit usually takes 30–60 minutes. Your child should be able to eat normally after the appointment once any numbing wears off.
Prevent future problems
After the new filling is placed, help your child maintain good habits:
- Brush twice a day with fluoride toothpaste.
- Floss daily.
- Limit sugary snacks and drinks.
- Wear a mouthguard if your child plays contact sports.
- Visit the dentist every six months for checkups.
Regular visits help catch decay early before it damages a filling.
How MediMouth helps
If you need a pediatric dentist who can see your child quickly, use the MediMouth provider finder to search by location and availability. You can also call your child’s regular dentist or ask for a same-day or next-day appointment. If you have questions about what to expect or want a second opinion on treatment options, feel free to contact a MediMouth network provider in Arizona.
Frequently asked questions
Is a lost filling a dental emergency?
A lost filling is not an emergency in most cases, but it does need prompt attention within a day or two. Call your dentist to schedule an appointment. If your child has severe pain, swelling, or difficulty swallowing, seek urgent care right away.
What should I do if my child swallowed the filling?
A swallowed filling is usually harmless and will pass through your child's digestive system naturally. You don't need to do anything special. Focus on getting the tooth examined by your dentist as soon as possible.
Can I repair the filling at home?
No. At-home dental repair kits are not safe or effective for children's teeth. Only a dentist can properly assess the tooth and place a new filling. Until the appointment, avoid chewing on that side.