My Child Lost a Filling or Crown: What Should I Do?
If your child’s filling or crown has come out, keep the piece if you can find it, switch to soft foods, and call the office to describe what happened. Do not try to glue or cement it back in at home. Most lost restorations are not emergencies, but the tooth underneath is now unprotected, and the timing of the next appointment depends on what you are seeing.
Below is how to tell those situations apart, what to save, what to avoid, and what a pediatric dentist actually weighs when deciding whether to repair, replace, or take a different route entirely.
First, work out what came out
Parents often use the words interchangeably, and the two situations behave differently.
A lost filling leaves a hollow or a rough crater in the biting surface or between the teeth. The tooth is still its normal shape apart from the missing piece. Run a clean finger over it gently and you will usually feel an edge or a dip.
A dislodged crown comes off whole. On a child that often means a tooth-colored or silver-colored cap that covered the entire tooth, and what is left behind is a smaller, shaped stub that can look alarming even though it is exactly what should be there. Crowns generally come off in one piece, so if you find something that looks like a small hollow cap, that is what it is.
Either way, check that the piece is out of your child’s mouth. A loose crown that is still sitting in place can be swallowed or, much more rarely, inhaled. If a restoration has gone missing and you cannot account for it, mention that when you call, especially if your child had any coughing or choking at the time.
What to do in the first hour
- Find the piece and keep it. Put it in a small container or a sealed bag. A crown in particular is worth saving, because in some cases it can be recemented.
- Rinse gently with warm water. Food packs easily into an open cavity, and rinsing is more comfortable than picking.
- Switch to soft foods. Hard and chewy items are the two categories that cause the most trouble, so pause anything crunchy, sticky, or chewy until the tooth is checked.
- Have your child chew on the other side. An unprotected tooth is more likely to chip or become sensitive under pressure.
- Keep brushing the area. Gently, with a soft brush. Skipping it lets plaque collect exactly where the tooth is now vulnerable.
- Do not attempt a permanent repair. More on that below, because it matters more than parents expect.
If the exposed tooth is sensitive, a soft diet and avoiding very hot and very cold foods usually keeps a child comfortable until the appointment.
Why home repair causes more problems than it solves
The instinct to put the crown back on and stick it there is completely understandable. It is also the single change most likely to make the visit harder.
Household adhesives are not made for the mouth. Anything that cures onto the inner surface of a crown or into the cavity can prevent the restoration from seating correctly later, which can turn a recementable crown into one that has to be remade. Adhesive can also irritate the gum and trap bacteria against a tooth that may already have decay underneath it.
A misplaced crown creates a second problem. If it is set even slightly off position, your child’s bite changes, and a high spot can make a tooth sore within a day.
There is a broader reason too. A restoration coming out is information. It may mean the material simply reached the end of its life, and restorations do have finite lifespans. It may mean decay has developed underneath it. It may mean the tooth structure holding it has weakened, or that a baby tooth is loosening on its own schedule. Sealing it back up at home hides the exact thing the dentist needs to see.
Call today, call promptly, or seek urgent care
| What you are seeing | How soon to act |
|---|---|
| Restoration gone, no pain, no sensitivity, child eating normally | Call during office hours. A regular appointment is appropriate. |
| Sensitivity to cold, sweet, or air, or a sharp edge catching the tongue | Call the same day. These are usually manageable, but the tooth should be seen sooner. |
| The restoration came out while eating and a piece of tooth came with it | Call the same day. Save both pieces. |
| A crown came off and the tooth underneath looks dark, or the gum around it is red and puffy | Call the same day. |
| Pain that wakes your child, pain with biting, or a pimple-like bump on the gum | Call promptly and say those words on the phone. This changes the priority. |
| Facial or gum swelling, fever, or a child who seems unwell | Urgent. Seek care immediately. |
| Trouble swallowing or breathing, or swelling spreading toward the eye or neck | Emergency room or 911, not a routine dental appointment. |
| The restoration came out during a fall or a blow to the mouth | Same day. The injury matters as much as the missing restoration. |
The bottom rows do not become less urgent overnight or on a weekend, so if the office is closed and you cannot reach us, urgent care or an emergency room is the right destination. For anything involving a knock to the mouth, our page on pediatric dental emergencies covers first steps for injuries specifically.
What the dentist is weighing at the appointment
Parents often expect a straight swap: the filling came out, so a new filling goes in. Sometimes that is exactly what happens. Often the decision has more moving parts, and it is worth knowing what they are so the recommendation makes sense when you hear it.
How much sound tooth is left. This is usually the deciding factor. A tooth with enough healthy structure can hold a new filling. A tooth that has lost too much may not, and repeatedly refilling a tooth that cannot hold a filling tends to fail again.
Whether decay is present underneath. What looks like a clean empty space can have soft tooth structure at its base. That is only assessable once the area is examined and, where appropriate, imaged.
How deep the problem sits. If decay or a fracture has reached the nerve tissue inside the tooth, the conversation shifts toward pulp therapy and crowns rather than another filling.
Where the tooth is in its life. A baby molar that will be replaced in a year is a different proposition from one that has five years of work ahead of it. Neither answer is automatic, because primary teeth hold space for the permanent teeth arriving behind them.
Your child’s overall caries risk. A child who has had several restorations may be better served by a more durable option than by another intracoronal filling. In children at high risk of decay, full-coverage crowns on primary teeth hold up better over time than large multi-surface fillings.
What your child can manage today. If a full restoration is not feasible in one visit, a dentist may place an interim restoration to seal and stabilize the tooth and slow the process, with definitive treatment planned afterward. That is a recognized approach, not a shortcut.
The upshot is that a new tooth-colored filling is one of several possible answers, and the full range of options for children sits under restorative dentistry for kids. We cannot tell you which applies before we have looked.
Can the original crown just go back on?
Sometimes, and it is always worth bringing in. Whether that works depends on the condition of the crown itself, the condition of the tooth beneath it, and why it came off in the first place.
What we will not do is promise it in advance. A crown that came off cleanly because the cement gave way is a different situation from one that came off because the tooth underneath has changed shape. Both look identical to a parent holding a small cap in a sandwich bag.
What this does not mean about your child
A lost restoration is not evidence that anyone did something wrong. Dental materials wear, children bite into things, teeth grow and shift, and every restoration has a finite working life regardless of how carefully it was placed and cared for. Sticky candy takes the blame more often than it deserves.
What matters now is the timing of the next appointment and an honest look at what the tooth needs. If your child has had several restorations come out, that pattern is worth discussing directly, because it usually points to something adjustable in prevention rather than to bad luck.
Call our Indianapolis office
Tell us what came out, when, and whether your child has any sensitivity or pain, and we will tell you how soon to come in. Our Indianapolis number is 317-580-9199, and the contact page has everything else. Find us at 9240 N. Meridian St., Suite 250, Indianapolis, IN 46260, and bring the piece with you if you found it.
Clinical sources: American Academy of Pediatric Dentistry best practices on pediatric restorative dentistry and its policy on interim therapeutic restorations.
Every tooth arrives with its own history. This article is general education for parents and does not replace an in-person examination by a qualified clinician.
