If your dentist has mentioned that a tooth needs "something more than a filling", the next question is usually the same. Crown or filling? The honest answer in dental crowns vs fillings is that they do different jobs, and which one is right depends on how much healthy tooth you have left to work with. Here is a clear guide from the team at The Limes Dental Practice on Stroud Road.
A filling sits inside a tooth. It plugs a small hole left by decay or a chip, and it relies on the surrounding tooth structure to hold it in place. A crown sits over a tooth. It caps the entire visible part, holding the remaining tooth together and protecting it from cracking.
Think of a filling as a patch and a crown as a helmet. A patch works fine on a small puncture. A helmet is what you need when the underlying structure has taken too much damage to be patched safely.
A filling is usually the right answer when:
For most everyday cavities caught early at a check-up, a tooth-coloured filling is the simplest, cheapest and least invasive option. Modern composite fillings bond directly to the tooth and can last many years if maintained well. If you have older restorations that are starting to fail, our post on replacing older white fillings covers what to expect.
A crown is typically recommended when:
The reason is structural. Once a tooth has lost a certain amount of itself, a filling has nothing strong to bond to. Pressure from chewing acts like a wedge, splitting whatever is left. A crown wraps the tooth and spreads that force, which is why dentists often describe it as the "save" option for a tooth that would otherwise be lost. Learn more about our crown treatments.
Cracks are tricky. They can be invisible on a normal X-ray and may only show up under magnification or when a patient bites on a particular angle. If a tooth hurts when you bite down and then settles, that is classic crack behaviour. Unlike a bone, a cracked tooth will not heal. Catching it early with a crown can keep the tooth. Leaving it usually means a root canal or, worse, an extraction. Our post on same-day crown technology covers how we can sometimes deliver a crown in a single visit when timing matters. If a tooth cracks suddenly, our emergency dental care team can assess it promptly.
At The Limes, composite fillings start from £195 and crowns start from £550, with the final fee depending on the size of the restoration and the material used. A filling is almost always cheaper in the short term. The catch is that fillings on heavily damaged teeth often need replacing, and each replacement removes a little more healthy tooth. A crown costs more upfront but, on the right tooth, can be the more economical choice over a decade. For a full breakdown, see our full fee guide.
There is a category of tooth that sits between "needs a filling" and "needs a crown". When we see one of these, we walk you through the trade-off honestly. The conversation usually covers:
We will sometimes recommend a large bonded filling first, with the plan that if it fails or chips, we move to a crown. Other times we will say a crown today is the safer call. The right answer is the one you are comfortable with after seeing the evidence.
Sometimes a filling can work, but if your dentist has recommended a crown it is usually because the tooth has lost too much structure to hold a filling reliably. Asking to see your X-rays or photos is a fair request. We routinely walk patients through the imaging before deciding.
A well-made crown typically lasts ten to fifteen years, and many last longer with good hygiene. Lifespan depends on the material, your bite and how well you look after the tooth around it.
The procedure itself is comfortable under local anaesthetic. Crown preparation involves a little more time in the chair than a filling, and most patients report mild sensitivity for a few days afterwards.
Sometimes, but it is usually a higher risk. Root canal teeth become more brittle and a crown protects them from fracturing. We will tell you honestly when a crown is essential and when it is optional.
The most common outcome is a fracture, often through the root, which then makes the tooth unsalvageable. The cost of an implant or bridge to replace a lost tooth is significantly higher than the cost of a crown.
If you have been told you need a crown, or you suspect a filling is reaching the end of its life, the simplest next step is a consultation. We will examine the tooth, take any imaging we need and give you a clear recommendation in writing.
Book online or call 01452 523089. The Limes Dental Practice, 168 Stroud Road, Gloucester GL1 5JX.
Reviewed by Dr Andrew Connolly, BDS MSc Implant Dent, Principal Dentist at The Limes Dental Practice.
