Zirconia or metal-ceramic crowns: which should you choose?
Zirconia crowns are lighter and let light through much like a natural tooth, so they are usually preferred where teeth show, while metal-ceramic crowns are a proven, more affordable option often chosen for back teeth. At SF Dent a metal-ceramic crown costs €260.00 and a full-contour zirconia crown €360.00 on the clinic's price list, and which material suits you is decided after an examination.
In short:
- Both types cover the whole tooth and restore its shape, function and appearance.
- Zirconia looks more natural and has no metal margin that can show at the gum; metal-ceramic has a long clinical track record and costs less.
- The choice depends on where the tooth is, your bite, tooth grinding and budget, not on price alone.
This article is for people whose dentist has recommended a crown or bridge and who are torn between the two most common materials. Details of the treatment at the clinic are on the Crowns and bridges page.
What is a dental crown and when do you need one?
A dental crown is an artificial "cap" that covers the whole visible part of a tooth and is cemented onto it. It is made in a dental laboratory from an impression or a digital scan, and it restores the tooth's shape, size and colour while protecting it from further damage.
A crown is usually recommended when:
- the tooth is badly broken down by decay and a large filling will not withstand chewing forces;
- the tooth has had root canal treatment and is weakened, especially a back tooth;
- a fracture or crack affects a large part of the tooth;
- a bridge replacing a missing tooth needs to be anchored;
- the tooth is badly changed in shape or colour and gentler methods are not suitable.
The UK's National Health Service (NHS) describes a crown as "a type of cap that completely covers a real tooth", usually made from metal, ceramic or porcelain fused to metal (NHS – Dental treatments).
What is the difference between a zirconia and a metal-ceramic crown?
A metal-ceramic crown has a metal base (framework) onto which the dental technician fires layers of tooth-coloured ceramic. The metal gives strength and the ceramic gives the natural look. A zirconia crown is made from zirconium dioxide, a metal-free ceramic. A "full-contour" crown is made entirely of zirconia, milled from a single block.
| Criterion | Zirconia crown | Metal-ceramic crown |
|---|---|---|
| Base | Metal-free, zirconia | Metal alloy covered with ceramic |
| Appearance | Light, lets light through; no dark margin at the gum | Natural colour, but a dark margin may show if the gum recedes |
| Strength | Very strong material; also suitable for back teeth | Strong base; the ceramic can chip under heavy load |
| Metal allergy | Contains no metal | Contains metal |
| Price at SF Dent | €360.00 | €260.00 |
Which type of crown is better for front teeth?
For front teeth most patients and dentists prefer metal-free materials such as zirconia. Here every difference in colour and translucency shows when you smile. With metal-ceramic, the metal base does not let light through, and over time, if the gum recedes, a dark line may appear along the edge of the crown.
That does not make metal-ceramic a "bad" choice. For some people the visible area is small, the gum is stable and the difference is barely noticeable. The dentist will judge with you how important appearance is for the particular tooth.
Which crowns are stronger for back teeth?
Back teeth take the greatest chewing load. Both materials are used successfully there. Metal-ceramic has been used for decades and its behaviour is well known. Monolithic (full-contour) zirconia is very strong and has no ceramic layer that could chip, so it is often offered to patients who clench or grind their teeth.
If you have bruxism, tell the dentist before treatment. Heavy clenching stresses any crown, and a night splint may be needed to protect both the crowns and your natural teeth.
How long do zirconia and metal-ceramic crowns last?
There is no exact lifespan that applies to everyone. How long a crown lasts depends more on the tooth underneath, your oral hygiene, your bite and regular check-ups than on the material itself. With good care many crowns last for many years, but we cannot promise a specific number of years.
The most common reasons a crown has to be replaced are decay at its margin, gum inflammation, fracture of the tooth underneath or chipped ceramic. That is why regular tartar removal and check-ups matter as much as the choice of material.
How is a crown fitted?
- Examination and plan. The dentist examines the tooth, orders an X-ray if needed and explains the options.
- Preparation. Under local anaesthetic the tooth is shaped to make room for the crown. If the tooth is badly broken down, a core is sometimes built up or a post placed first.
- Impression and temporary crown. An impression is taken, and the tooth is protected with a temporary crown until the permanent one is ready.
- Try-in and cementation. The crown is checked for colour, shape and bite, adjusted if needed and permanently cemented.
The process usually takes at least two visits, because the crown is made in a dental laboratory. The exact number of visits depends on your case.
How much do zirconia and metal-ceramic crowns cost?
On SF Dent's price list a metal-ceramic crown is €260.00 and a full-contour zirconia crown is €360.00. The examination, tooth preparation, a temporary crown and permanent cementation may be added to the price of the crown itself; they are separate lines on the price list. The price of a bridge depends on how many teeth it includes and is set after a consultation.
| Service | Price |
|---|---|
| Examination | 30.00€ |
| Tooth preparation (grinding) | 52.00€ |
| Temporary crown | 36.00€ |
| Metal-ceramic crown | 260.00€ |
| Zirconia full-contour crown | 360.00€ |
| Crown adjustment | 31.00€ |
| Permanent cementation of a fixed restoration | 31.00€ |
| Bridge | after consultation |
Prices are from the clinic’s price list. The final cost depends on your case and is confirmed after an examination. See the full price list
You will know the final amount for your case after the examination. The full list is on the clinic's price list.
What if a tooth is missing: crown or bridge?
A bridge is a fixed structure made of several joined crowns. It replaces a missing tooth by resting on the neighbouring teeth, which are prepared and covered with crowns. A bridge can be metal-ceramic or zirconia, and the same differences described above apply.
For a missing tooth an implant is often discussed as well, as it does not require preparing the neighbouring teeth. Which option fits better depends on the neighbouring teeth, the bone and your preferences. There is more on the Dental implants page.
How do you choose the material?
These are the questions worth discussing with your dentist:
- How much does the tooth show when you smile and speak?
- Do you clench or grind your teeth?
- How much space is there between the teeth when you bite?
- Do you have an allergy or intolerance to metals?
- What is your budget, and are there other teeth that also need treatment?
It is best to decide on the material after the dentist has seen the tooth, not on price alone. Sometimes the same patient has zirconia crowns at the front and metal-ceramic at the back, and that is perfectly normal.
When should you call a dentist?
If you have a badly broken-down tooth, a root-filled tooth without a crown, or an old crown with a dark margin, pain or movement, book an examination. The earlier a tooth is assessed, the more options there are. Read more about the treatment on the Crowns and bridges page or call +359 87 666 2785. SF Dent is at 22 Elemag St in Izgrev, Sofia, and is open Monday to Friday, 09:00 to 18:00.
Frequently asked questions
Which crown is better, zirconia or metal-ceramic?
No material is better in every case. Zirconia is metal-free and looks more natural, so it is often chosen for front teeth. Metal-ceramic is proven, strong and more affordable, so it is often used for back teeth. Your dentist recommends a material after examining the tooth and your bite.
How much does a zirconia crown cost in Sofia?
At SF Dent a full-contour zirconia crown costs €360.00 and a metal-ceramic crown €260.00 on the clinic's price list. The examination, tooth preparation, a temporary crown and cementation may be charged separately. You will know the final price for your case after the examination.
Does getting a crown hurt?
The tooth is prepared under local anaesthetic, so most patients feel pressure and vibration but not pain. Once the anaesthetic wears off, the tooth and gum may be sensitive for a few days. If the pain gets worse or does not settle, contact your dentist.
How many visits does a crown take?
Usually at least two: one to prepare the tooth, take an impression and fit a temporary crown, and one to try in and cement the permanent crown. If the tooth first needs treatment, such as a root canal, there may be more visits. The exact number depends on the case.
Can a crown be placed on a root-filled tooth?
Yes, and it is often recommended, especially for back teeth. A root-filled tooth is more brittle, and a crown protects it from fracture. Before that, the dentist checks that the root canal treatment is sound and that there is enough healthy tooth left to support the crown.
