Loose Crown Signs
Short answer. Loose crown signs include a crown that moves or clicks, a changed bite, a gap or rough edge at the gum, and a bad taste or odor from the tooth. A loose crown should be seen by a dentist soon, because bacteria can reach the tooth underneath.
- Movement, clicking or a different bite can all mean a crown is loosening.
- A bad taste near the crown may mean the seal has opened.
- Do not glue a crown back with household adhesive.
- If it comes off, keep it and call your dentist the same day.
What a loose crown can feel like
Early on, a loose crown is often subtle. You may feel the tooth shift slightly when you press on it with your tongue, hear a faint click when you chew, or notice that your bite feels different from usual. Some people sense a sticky food pulling at the crown as they open their mouth.
Because the changes are small, they are easy to dismiss. If something about that tooth simply feels different from last week, take note of it and mention it to your dental team rather than waiting for it to get obvious.
Visible and sensory clues
Look in a mirror for a dark line or small gap where the crown meets the gum, a rough or raised edge, or a change in how the crown sits compared with its neighbors. A bad taste or an odor coming from that tooth can mean the seal underneath has opened and bacteria or food have worked their way in.
Sensitivity to hot, cold or biting pressure can also appear. None of these signs proves the crown is loose, but together they are a good reason to book an appointment.
Why a loose crown should not be ignored
The crown is held in place by dental cement, and the seal between crown and tooth keeps bacteria out. Once that seal fails, plaque can collect underneath and decay can start on the natural tooth without being easy to see or feel.
Waiting also risks the crown falling out while you eat, being swallowed, or being damaged. A short delay is sometimes unavoidable, but the sooner the dentist examines it, the more options there usually are for keeping the tooth and the crown.
What to do if your crown comes off
Keep the crown somewhere safe and call your dentist the same day. Rinse your mouth gently with water, and clean the crown carefully without scrubbing hard. Avoid chewing on that side, and be careful with very hot or cold items, as the exposed tooth may be sensitive.
Do not use household glues. Some people are told to use a dental cement product from a pharmacy as a short-term measure, but ask the dental team or pharmacist first. If you are in pain or have swelling, say so when you call.
What the dentist will check
The dentist will look at how the crown fits, test whether it moves, and check the tooth underneath for decay or damage, often with an X-ray. Depending on what is found, the crown may be cleaned and re-cemented, or a new crown may be advised.
Take a few notes with you: when you first noticed the problem, what makes it worse, and any medicines you take. It also helps to ask what caused the loosening, so you can reduce the chance of it happening again.
Questions readers ask
Can a loose crown be fixed or does it need replacing?
It depends on the condition of the crown and the tooth beneath it. Sometimes the same crown can be re-cemented, and sometimes a new one is needed.
Is a crown that clicks always loose?
Not always, since a bite change can also cause odd sensations. Only an exam can tell, so mention the click at your next visit or sooner.
Can I eat normally until my appointment?
It is safer to chew on the other side and avoid sticky, chewy or hard foods. Ask the dental team for advice specific to your tooth.
Can grinding my teeth loosen a crown?
Heavy clenching or grinding can put extra strain on a crown and its cement. Tell your dentist if you suspect you grind, as protection may be an option.
Talk to a professional. Persistent bleeding, pain, swelling, loose teeth or sores that do not heal need a dentist's attention, not a supplement.