A new crown that twinges with cold drinks or feels a little bruised when you chew is common in the first days after it is fitted. The detail that matters most is the direction things are heading. Sensitivity that eases a little each week is part of normal recovery. Sensitivity that stays the same, gets worse, wakes you at night or hurts mainly when you bite deserves a call to your dentist rather than more waiting.
Why a freshly crowned tooth can feel tender
To make room for a crown, the outer surface of the tooth is shaped down, which brings the surface closer to the dentine, the layer beneath the enamel that carries fluid-filled channels leading towards the nerve. The nerve also has a fair bit to cope with: the shaping itself, the local anaesthetic, a temporary crown worn for a while, and finally the cement that holds the permanent crown in place. Each of these can irritate the pulp a little. In most teeth, that irritation calms down as the tooth adjusts.
The type of cement can play a part. A randomised trial by Blatz and colleagues in Clinical Oral Investigations (2013), which followed 88 crowns at one day, one week and three weeks after fitting, found that sensitivity scores differed depending on which cement was used. It is one reason sensitivity varies from one crown to the next.
Better each week is the pattern to expect
Mild sensitivity to temperature, or a little tenderness when chewing, is usually most noticeable in the first few days and then fades over the following weeks. The trend is a more useful guide than any fixed number of days. If it is clearly improving, keep going. If it has not improved after a couple of weeks, or is getting worse at any point, have it checked.
Pain on biting often means the crown is a touch high
A crown that stands even slightly higher than the teeth around it takes extra force every time you bite. That tends to cause tenderness that does not fade with time, because the cause is still there. Numbness at the fitting appointment can make a high spot hard to notice until later. It is usually a quick fix: the dentist marks the bite and smooths the high point in a short visit. If biting bothers you more than hot or cold, say so when you call.
Signs that need a closer look
- Pain that starts on its own, particularly if it wakes you or lingers after a hot drink, can mean the nerve is more inflamed than usual and may need root canal treatment.
- Pain as you let go of a bite rather than as you clamp down can point to a crack in the tooth under the crown.
- Sore or swollen gum at the edge of the crown may mean the fit needs checking, or that decay has started at the margin. Our guide to getting a cavity under a crown explains how that happens.
- Sensitivity that is building rather than fading is always worth a phone call.
Crowns on root-filled teeth
If the crown was placed on a tooth that has had root canal treatment, there is no living nerve inside to react to hot and cold. Any tenderness is more likely to come from the gum or the ligament around the root, and it usually settles in the same gradual way. Our guide to needing a crown after a root canal explains why crowns are often recommended for root-filled back teeth.
Occasionally the nerve struggles later
Most crowned teeth keep a healthy nerve for many years, but not all. In a study by Cheung and colleagues in the International Endodontic Journal (2005), which reviewed teeth that had a living nerve when a metal-ceramic crown was placed, about 84% still had a living nerve after 10 years and about 81% after 15 years. A nerve that was already under strain before the crown, for example from deep decay or a large filling, is generally thought to be at higher risk, and that is one reason new pain months or years later should still be checked.
Caring for the tooth in the first weeks
For the first few days, steer clear of very hot or icy food and drink if they set off a twinge, and chew on the other side where you can. Brush and floss around the crown as normal from the start. Keeping the edge where the crown meets the tooth clean is what protects it from decay in the long run. A toothpaste for sensitive teeth can help with mild cold sensitivity. Our guide to how long a filling takes to set covers similar early care for other restorations.
Common questions after a crown
Is cold sensitivity after a crown normal?
Mild cold sensitivity in the early days is common and usually eases as the nerve settles. Sharp pain that lingers, or sensitivity that worsens, should be checked.
Why does my crown hurt when I bite down?
The most common reason is that the crown sits slightly high, which a short adjustment usually fixes. Less often, it can point to inflammation around the root or a crack.
Can a crown cause problems months later?
Yes. Decay at the edge of the crown, a crack in the tooth underneath or a nerve that gradually gives up can all cause pain well after the first few weeks, so new pain is always worth assessing.
If your new crown is still uncomfortable or seems to be getting worse, a quick review can usually find the reason. See our current offers or visit our general dentistry page to book.
This article is general information and not a substitute for an individual dental assessment.
