If your temporary crown falls off, retrieve it, rinse it gently, and call your dentist to schedule a reattachment as soon as possible. In most cases this is not a dental emergency, but you do need to act within a day or two to protect the exposed tooth and keep neighboring teeth from shifting.
What to Do Right Away
First, find the crown and set it somewhere safe. Most temporary crowns can be cleaned and reattached. Rinse your mouth with warm water to clear any loose cement or debris, and take a look at the exposed tooth. If the remaining tooth structure has sharp or jagged edges that could cut your tongue or cheek, that qualifies as a reason to call an emergency dentist. Otherwise, a same-day or next-day appointment is the goal.
While you wait, avoid chewing on that side of your mouth entirely. The prepared tooth underneath is smaller than your original tooth and far more vulnerable to fracture, sensitivity, and decay without its protective shell.
How to Temporarily Reattach It
If you can’t see your dentist for a day or two, you can place the crown back over the tooth yourself using an over-the-counter temporary dental cement. Products like Dentemp and DenTek Temparin Max are sold at most pharmacies and are specifically designed for this. Follow the package directions: you’ll typically mix or knead a small amount of cement, apply it inside the crown, and press the crown firmly onto the tooth.
Before you seat the crown, make sure you’re orienting it correctly. It should fit snugly and feel natural when you bite down. If it rocks or feels uneven, remove it and try again. A poorly seated crown can throw off your bite and cause soreness in the jaw.
If you don’t have dental cement on hand, a small dab of denture adhesive can hold the crown in place for a few hours. Some people use a thin layer of toothpaste as a very short-term placeholder, though it offers almost no real adhesion. These are stopgaps to get you through until a dental visit, not substitutes for professional reattachment.
Never Use Superglue
It’s tempting, but household superglue is genuinely dangerous inside the mouth. The chemicals are not approved for oral use and can burn or inflame gum tissue. Superglue also bonds permanently in whatever position the crown lands in, which means if it’s even slightly off-angle, your dentist may need to drill away the residue to remove it. That process can weaken the underlying tooth or make the crown unusable, potentially requiring a brand-new one.
Beyond the positioning problem, superglue traps bacteria underneath the crown, raising the risk of infection and decay in the very tooth you’re trying to protect.
Why Timing Matters
A temporary crown isn’t just cosmetic. It holds space for your permanent crown while the lab fabricates it. Without that placeholder, neighboring teeth can drift into the gap surprisingly fast. Dentists report seeing teeth shift into contact with adjacent teeth within days, not weeks. In one documented case, a patient who went months without a temporary crown on a lower molar saw the tooth drift sideways into its neighbor and also push upward toward the opposing tooth, making the permanent crown nearly impossible to seat.
Gum tissue can also overgrow the margins of the prepared tooth when nothing is holding it back. If that happens, your dentist will need to push the tissue down before cementing the permanent crown, adding an extra step and potential discomfort to what should be a straightforward appointment.
Eating and Drinking Without a Crown
Whether you’ve managed to temporarily recement the crown or you’re waiting with an exposed tooth, stick to soft foods and chew on the opposite side. Avoid anything sticky (gum, caramel, taffy), anything hard (nuts, hard candy, raw carrots), and anything that requires tearing or heavy chewing like steak or crusty bread. These can re-dislodge a recemented crown or damage the unprotected tooth.
Temperature matters too. Very hot or very cold foods and drinks can trigger sharp pain if nerve endings are exposed, and extreme temperatures can weaken temporary cement. Room-temperature or lukewarm options are safest until your dentist fixes the crown.
Why Temporary Crowns Come Loose
Understanding what caused the fall can help you prevent it from happening again after your dentist reccements it. The most common reasons:
- Sticky or hard foods pulled or knocked the crown free.
- Cement breakdown from normal wear, especially if the temporary has been in place for several weeks.
- Bite misalignment put uneven pressure on the crown every time you chewed, gradually loosening the seal.
- Decay underneath changed the shape of the tooth enough that the crown no longer fit tightly.
After reattachment, avoid chewing gum entirely, cut food into small pieces, and be cautious with flossing around the temporary. When you floss, slide the floss out sideways rather than snapping it up through the contact point, which can catch the crown’s edge and pull it off again.