If a filling just fell out, the tooth isn't in danger in the next hour — but it does need attention soon. The exposed area is more sensitive and more vulnerable to damage and decay, so the goal is to protect it and get it re-sealed within a day or two.
Here's exactly what to do right now, what to avoid, and when to be seen.
What to do in the first few minutes
Rinse your mouth gently with warm water to clear away any loose pieces, and save the filling if you can find it — it helps your dentist see what happened. Rinse with warm salt water a couple of times a day to keep the area clean, and keep the tooth free of food debris. If the edge feels sharp, a small piece of sugar-free gum or an over-the-counter temporary filling material from the pharmacy can cover it until your appointment.
What to avoid
Don't chew on that side of your mouth, and steer clear of very hot, cold, sweet, or hard foods that can trigger sensitivity or crack the weakened tooth. Don't try to glue the old filling back in — household adhesives aren't safe for your mouth and can seal bacteria inside the tooth. And don't ignore it because it doesn't hurt; the opening still needs to be closed.
Managing sensitivity until your visit
An exposed tooth can be sensitive to temperature and air. Sensitivity toothpaste and avoiding trigger foods usually help. If you have discomfort, an over-the-counter pain reliever taken as directed on the label can take the edge off — but that's a stopgap, not a fix, and ongoing or worsening pain is a reason to be seen sooner.
When to be seen right away
Book a same-day or emergency visit if you have throbbing pain, swelling in the gum or face, a bad taste or discharge, or a tooth that feels loose. These can signal that decay or infection has reached deeper into the tooth, which changes the treatment and shouldn't wait.
What the repair usually involves
Most lost fillings are straightforward to replace. Your dentist will clean out any decay, check whether enough healthy tooth remains for a new filling, and seal it. If the tooth has lost a lot of structure or has a crack, a crown may be the more durable choice, and a tooth with deeper involvement of the nerve may need a root canal. A quick exam and X-ray tells you which path you're on before any work begins.
Frequently asked questions
Is a filling falling out a dental emergency?
It's usually an urgent problem rather than a true emergency, but it shouldn't wait long. An exposed tooth is more sensitive and more prone to further damage or decay, so it's best to be seen within a day or two — sooner if you have pain, swelling, or a sharp edge cutting your tongue.
What should I do if my filling came out and there's no pain?
Even with no pain, book a visit soon. Keep the area clean, avoid chewing on that side, and rinse with warm salt water. The lack of pain doesn't mean the tooth is fine — it just means the nerve isn't irritated yet, and the opening still needs to be sealed.
Can I put the filling back in myself?
No. Over-the-counter temporary filling material can protect the tooth for a short time until you're seen, but it isn't a repair. Trying to reuse the old filling or glue anything in place can trap bacteria and damage the tooth further.
Will I need a new filling or a crown?
It depends on how much tooth structure is left. A small, intact tooth often just needs a new filling, while a tooth that has lost a lot of structure or has a crack may need a crown or, in some cases, a root canal. A quick exam and X-ray is the only way to know.
Lost a filling? We can help
Most Ideal Dental offices reserve time for same-day and urgent visits, so you don't have to wait days with an open tooth. New guests can start with a $39 new-guest exam and X-rays (regularly $289). Find your nearest Ideal Dental to be seen.