Lost a Crown or Filling? Do This Before It Gets Expensive
August 2, 2026

Lost a Crown or Filling? Every Hour Costs You Money.
You’re chewing a bagel. Or eating caramel. Or biting into a sandwich. Suddenly, something feels off — a hard piece rolls around in your mouth, or a sharp edge digs into your tongue. You spit it out and there it is: your crown or filling, sitting in your palm.
The tooth doesn’t hurt (yet). You’re not bleeding. Maybe it happened on a Saturday and your dentist isn’t open. It’s tempting to think, “I’ll just call Monday and deal with it then.”
That’s usually the most expensive mistake people make. Every hour a tooth sits unprotected costs you money — because the longer you wait, the more likely you’ll need something bigger than a simple re-cement or re-fill. What could have been a $100 fix becomes a $2,500 problem in a matter of days.
If you’ve lost a crown or filling in Fairfield, this guide walks through exactly what to do — and what NOT to do — before it gets expensive.
Need help fast? Call (707) 422-3500 for same-day repair in Fairfield CA 94534.
Why a Lost Crown or Filling Can’t Wait
A crown or filling isn’t just cosmetic. It’s a physical seal that protects the vulnerable inner layers of your tooth. Once that seal is broken, several bad things start happening — quickly.
Bacteria invade within hours. Your mouth is home to hundreds of bacterial species. Some are harmless, others are aggressive tooth destroyers. With the seal gone, they get direct access to the softer dentin and nerve underneath.
Decay accelerates. A cavity that took years to form can grow noticeably in just days once the tooth is exposed. Every meal feeds those bacteria.
The tooth becomes fragile. The remaining tooth structure isn’t designed to bear full chewing force on its own. One wrong bite (a hidden bone, a hard chip, a pit) and the whole thing cracks. Now you need a root canal or extraction instead of a simple re-cement.
The nerve gets exposed. If the crown covered a lot of tooth, or the filling was deep, the tooth’s nerve may be right at the surface. Hot coffee, cold water, or even breathing through your mouth suddenly triggers sharp pain.
Infection sets in. Given a few days, exposed nerve tissue often becomes infected — leading to an abscess and potentially requiring root canal, antibiotics, or extraction.
According to the American Dental Association, prompt professional attention to lost dental restorations prevents these escalating complications and typically results in less expensive treatment.
Step-by-Step: What to Do Right After You Lose It
Follow these steps in order to protect your tooth and give yourself the best chance at a quick, affordable repair.
1. Find and Save the Crown or Filling
Look in whatever you were eating. Check your mouth. If it’s a crown, it’s typically the size of a small pea — off-white, sometimes with a gold or silver base. If you find it, rinse briefly with cool water and store it in a small container (a pill bottle, tiny bag, or empty contact lens case works great).
Don’t wrap it in tissue — it’s incredibly easy to throw away by accident. If Dr. Singh can re-cement your original crown, you save hundreds of dollars versus a new one.
2. Rinse Your Mouth Gently with Warm Salt Water
Mix 1 teaspoon of salt in a cup of warm water. Swish gently for 30 seconds. This clears debris from the exposed tooth and reduces bacteria in the area.
3. Avoid Chewing on That Side
Switch all chewing to the opposite side of your mouth. The exposed tooth can crack under normal bite pressure, especially back molars that handle most of the chewing force. One wrong bite could turn a $100 fix into a $2,500 problem.
4. Skip Hot, Cold, Sugary, and Sticky Foods
Hot coffee, ice water, ice cream, candy, and sugary drinks all trigger sensitivity in exposed dentin. Sticky foods (caramel, taffy, gummy bears) can pull out any remaining filling or damage the tooth further.
Stick to soft, room-temperature foods: yogurt, oatmeal, soft bread, scrambled eggs, mashed potatoes.
5. Use Over-the-Counter Temporary Dental Cement (Optional)
Any pharmacy carries temporary dental cement — brands like Dentemp or Recapit are common. This is a short-term fix that lets you protect the tooth for a few days until you can see us.
For a lost crown: Clean the crown gently with warm water. Apply a thin layer of cement inside the crown. Push it back onto the tooth firmly. Bite down for 30 seconds to seat it. Remove any excess cement around the gum line.
For a lost filling: Follow the package instructions to pack a small amount of cement into the cavity. Bite gently to shape it.
Warning: This is only a temporary measure. Even with cement, you need professional evaluation within 1 to 3 days.
6. Take Ibuprofen if There’s Sensitivity
If the tooth is sensitive to air, hot, or cold, ibuprofen (per label dosing) helps manage discomfort until you’re seen. Skip aspirin — never place it directly on the gum, it burns tissue.
7. Call (707) 422-3500 for Same-Day Repair
The sooner you call, the more repair options you have (and the cheaper they typically are). Most re-cement or replacement procedures can be done same-day at our Fairfield office.
What NOT to Do — The Mistakes That Cost You Money
Some of the most common mistakes we see actually make the problem far more expensive to fix. Avoid these at all costs.
Don’t use super glue. Ever. Super glue is toxic, damages the tooth surface, and makes professional re-cementation impossible. If you super-glue your crown back on, we often can’t re-use it — meaning you now need a completely new crown ($1,000 to $1,500) instead of a simple re-cement ($100 to $200).
Don’t use household adhesives. Same problem as super glue. Even “dental adhesive” from unfamiliar brands can contain chemicals that damage the tooth or make future work harder.
Don’t ignore it because it doesn’t hurt. Pain isn’t the only warning sign. Silent damage is often worse than painful damage — because you don’t notice the decay spreading until it reaches the nerve.
Don’t chew on that side, even if you’re careful. Careful chewing on an unprotected tooth still leads to fractures more often than you’d expect.
Don’t lose the crown or filling. If you can bring the original piece to your appointment, you often save hundreds compared to a new one.
Don’t wait for a scheduled cleaning “in a few weeks.” This is treated as urgent care. Book same-day or within 1 to 3 days maximum.
Why Crowns and Fillings Fail in the First Place
Losing a crown or filling isn’t random. Understanding the cause helps us prevent it from happening again.
Old cement weakens over time. Dental cement doesn’t last forever. Crowns placed 10 to 20 years ago are approaching the end of their expected lifespan, and the cement gradually loses grip.
Decay under the crown. Bacteria can slip in