Cracked Tooth
An incomplete fracture that causes sharp pain on biting and often hides from routine X-rays.
What it means
Understanding cracked tooth
A cracked tooth is an incomplete fracture that can range from a tiny surface line to a deeper split that reaches the sensitive inner layers. Cracks are often difficult to spot — they may not show up clearly on X-rays and can hide beneath the enamel — which is why the symptoms they produce are such an important clue.
The classic sign of a cracked tooth is a sharp, fleeting pain on biting or when releasing a bite, sometimes with sensitivity to temperature. Because a crack can allow bacteria to seep towards the nerve over time, early assessment gives the best chance of a straightforward, tooth-preserving outcome.
At our Wimpole Street practice, a GDC-registered dentist will examine the tooth carefully, sometimes using special tests to locate the crack, and explain the most suitable way to protect it.
Common causes of cracked tooth
Several factors can contribute to cracked tooth. Being aware of them can help — though only an examination can confirm what applies to you. Common contributing factors include:
- Biting on something hard, such as ice, nuts or a stray bone
- Grinding or clenching (bruxism), often during sleep
- Large or ageing fillings that weaken the remaining tooth
- A sudden knock or injury to the mouth
- Natural wear and the cumulative stress of years of chewing
- Rapid temperature changes in the mouth
Signs and symptoms to look out for
Symptoms vary from person to person, and some can be subtle. You may notice one or more of the following:
- Sharp pain when biting down or when releasing the bite
- Sensitivity to hot, cold or sweet foods
- Pain that comes and goes rather than being constant
- Discomfort that is hard to pinpoint to one tooth
- Occasional catching of the tongue on a rough edge
- No visible damage in many cases, despite clear symptoms
How we assess it at our Wimpole Street practice
Because the same symptoms can have different causes, an accurate diagnosis always comes first. At Wimpole Dental, a GDC-registered dentist will listen to your concerns, examine the area and — where clinically appropriate — take X-rays or other records to understand what is happening beneath the surface. Our practice is regulated by the Care Quality Commission (CQC), and every clinician is registered with the General Dental Council (GDC).
You will then have your options explained in plain English, with a written, itemised estimate before any treatment begins — and never any pressure to proceed. Flexible payment options may be available — ask at your consultation.
What to expect when you visit us
From your very first contact, our aim is to make dental care feel calm, clear and unhurried. A member of our reception team will help you find a time that suits you, including evening and weekend appointments, and if you are in pain we will do our best to see you the same day. You are welcome as a new patient, and there is no obligation to proceed with any treatment.
At your appointment, a GDC-registered dentist will take time to understand your concerns about cracked tooth, carry out a careful examination and, where clinically appropriate, take X-rays or other records. They will then explain what they have found and set out the suitable options — from doing nothing and monitoring, through to the treatments described above — so you can make an informed decision that is right for you.
If you feel anxious about visiting the dentist, you are far from alone, and we are experienced in caring for nervous patients. Please tell us how you feel when you book: we will move at your pace, explain each step before it happens, and focus on keeping you comfortable throughout. Our priority is honest, gentle care that puts your long-term health first.
Solutions & treatment options
The right solution depends on where the crack is and how deep it runs, so an accurate diagnosis comes first. A small crack limited to the enamel may simply be monitored or smoothed, while a crack affecting more of the tooth is often protected with a crown or onlay that holds the tooth together and spreads the force of biting.
If the crack has reached the nerve, root canal treatment followed by a crown may be needed to save the tooth. In cases where a tooth has split too deeply to be restored, replacement options such as an implant or bridge can be discussed. Your dentist will always explain the options, the likely outcome and a written estimate before proceeding.
Because cracks can worsen with continued biting, having symptoms assessed sooner rather than later gives the best chance of keeping the tooth.
The treatment we most often use
Dental Crowns
Lab-crafted porcelain, zirconia or e.max crowns that protect and restore damaged or root-treated teeth.
Prevention & everyday care
While professional care is important, good daily habits make a real difference. The following steps can help:
- Wear a custom night guard if you grind or clench
- Avoid chewing ice, hard sweets and other very hard items
- Have large or old fillings reviewed before they weaken the tooth
- Protect your teeth with a mouthguard during contact sport
- Attend regular check-ups so early cracks are spotted
- Do not use your teeth to open packaging
When to see a dentist
If this sounds familiar, it's worth having it assessed early — problems are almost always simpler to treat when caught sooner. A £30 consultation lets a GDC-registered dentist find the cause and explain your options in plain English, with no pressure to proceed.
Questions & Answers
Frequently asked questions
Cracks often do not appear on X-rays and can be invisible to the naked eye. Your dentist may use a bite test, magnification, dye or a bright light to locate the crack and understand how it is affecting the tooth before recommending treatment.
Unlike a bone, a cracked tooth cannot heal or knit back together. The aim of treatment is to protect the tooth, relieve symptoms and prevent the crack from spreading, which is why early assessment is helpful.
Not usually. Many cracked teeth can be saved, particularly when treated early. The outlook depends on the depth and position of the crack, which your dentist will assess before discussing the most predictable option.
No. This page is general education to help you understand a common concern. It is not a diagnosis, and the same symptoms can have different causes. Only an in-person examination by a GDC-registered dentist can confirm what is happening and what, if anything, needs treating.
You will always receive a written, itemised quote before any treatment begins. New patients start with a £30 consultation; flexible payment options may be available — ask at your consultation.
That is very common and completely understood. Our team is experienced in caring for anxious patients: your dentist will explain everything in plain English, work at your pace and never pressure you to proceed. Let us know how you feel when you book so we can make your visit as calm and comfortable as possible.
Yes. Wimpole Dental is regulated by the Care Quality Commission (CQC), and every clinician is registered with the General Dental Council (GDC), with numbers you can verify on the public register. Our marketing follows advertising standards guidance for healthcare, and we never guarantee outcomes.
You can book online, request a call back, or call us on 020 7183 0692. New patients are welcome, and we offer evening and weekend appointments as well as same-day emergency slots where possible.
Related concerns in pain & dental emergencies
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22 Wimpole St, London W1G 8GQ · CQC regulated · GDC-registered clinicians