What are the different types of dental crowns?
The main types of dental crowns are monolithic zirconia, layered zirconia, E-max (lithium disilicate), porcelain-fused-to-metal and all-metal crowns, plus crowns on implants and temporary crowns worn while the final one is made. At Creative Arts in Dubai, permanent crowns are all-ceramic, zirconia or E-max, designed and made at Creative Art Dental Lab in the same building, and the dentist chooses the material tooth by tooth.
What does a crown do, and why does the material matter?
A crown covers the whole visible part of a tooth: front, back, sides and biting surface. It is used when a tooth is too weak to be held together by a filling alone, for example after a large filling has failed, when a cusp has cracked, on a root-treated back tooth, on a tooth worn down by grinding, or to restore a dental implant.
All crowns do that same job, but the material decides how it is done. It determines how strong the crown is in a thin section, how much light passes through it, how much tooth has to be reduced to make room, whether it is bonded or cemented, and how it wears against the opposing teeth. A material that is perfect on a lower molar can look flat on an upper front tooth, and a beautiful front-tooth ceramic can chip on a molar in someone who grinds.
This guide compares every common type so you can follow your dentist's recommendation. For treatment itself, see dental crowns at Creative Arts.
Types of dental crowns compared
A general comparison of materials. The examination decides what suits each tooth.
| Crown type | What it is | Main strengths | Main limitations | At Creative Arts |
|---|---|---|---|---|
| Monolithic zirconia | One solid piece of zirconia, coloured with stains and glazed | Highest strength; very low risk of chipping; can be made thinner | Less translucent than glass-ceramics | Made in our lab |
| Layered zirconia | Zirconia core with ceramic hand-layered over the visible surfaces | Strength of zirconia with a more lifelike surface; masks dark teeth | The layered ceramic can chip under heavy load | Made in our lab |
| E-max (lithium disilicate) | A glass-ceramic, milled and finished, often bonded to the tooth | Natural translucency; bonds well; matches E-max veneers | Needs enough thickness; less suited to heavy grinding on molars | Made in our lab |
| Porcelain-fused-to-metal | Porcelain layered over a metal substructure | Long track record | Metal can show as a dark line at the gum; more opaque; porcelain can chip | Described for comparison |
| All-metal (gold alloy) | A crown cast entirely in metal | Very durable; gentle on opposing teeth; minimal reduction | Metallic colour; rarely chosen for visible teeth | Described for comparison |
| Implant crown | A crown attached to a dental implant, screw-retained or cemented | Restores a missing tooth without touching neighbours | Needs implant planning, healing time and careful cleaning | Made in our lab |
| Temporary crown | A provisional crown fitted at the preparation visit | Protects the tooth and holds the space while the final crown is made | Not designed to last; can come loose | Fitted at the clinic |
Permanent crowns made for Creative Arts patients are zirconia or E-max. Porcelain-fused-to-metal and metal crowns are described because many patients already have them.
Zirconia crowns: monolithic and layered
Zirconia is the strongest ceramic used for crowns. It is milled from a solid disc in an enlarged, chalk-like state and then heated, during which it shrinks and hardens to its final size. It comes in two main forms.
Monolithic zirconia is a single piece with no separate surface layer. Colour comes from shaded material and surface stains, finished with a glaze. Because there is no layer to chip off, it is the usual choice for molars, for people who clench or grind, and where space is tight, since it can be made thinner than most other ceramics. Modern versions are more translucent than older zirconia, but it still looks more opaque than a glass-ceramic up close.
Layered zirconia uses a zirconia core, with ceramic built up by hand over the visible surfaces to recreate translucency, colour depth and texture. It suits front teeth that need strength, and teeth that are dark underneath, because the core blocks the dark colour. The trade-off is that the layered ceramic can chip under heavy load. The detail is on our zirconia crowns page, and hand-layered ceramics explains how the layering is done.
E-max crowns: lithium disilicate
E-max is lithium disilicate, a glass-ceramic. It lets light pass through in a way that is close to enamel, so it is often the most natural-looking option for front teeth, particularly when the tooth underneath is a normal colour. It can be etched and bonded to the tooth with adhesive cement, which helps support it.
It is commonly used for front crowns and premolars, and sometimes for molars when there is enough room for adequate thickness and no heavy grinding. When some teeth in a smile receive veneers and others need crowns, using E-max for both makes it easier to match how they handle light. For a direct comparison of the two main ceramics, see E-max vs zirconia, and our page on the dental ceramics our lab works in explains the materials in more depth.
Porcelain-fused-to-metal and all-metal crowns
Described for comparison; Creative Arts crowns are zirconia or E-max. A porcelain-fused-to-metal crown has a thin metal cap with tooth-coloured porcelain fired over it. It was the standard crown for decades and many people still have them. Its weaknesses are cosmetic and mechanical: the metal blocks light, so the crown can look opaque, and if the gum recedes a dark line may appear at the edge. The porcelain can also chip away from the metal.
An all-metal crown, usually a gold alloy, is very durable, needs relatively little tooth reduction and is gentle on the opposing teeth, but its colour means it is mainly considered for back teeth that do not show.
If you already have one of these crowns and it is sound, there is no need to replace it. Common reasons people do replace them are a dark margin at the gum, chipped porcelain, decay underneath or a smile makeover where it no longer matches. A replacement is planned like any new crown, usually in zirconia or E-max.
Which type of crown for front teeth and back teeth?
Typical patterns, not rules. Your bite, the colour underneath and the space available can change the choice.
| Situation | Often chosen | Why |
|---|---|---|
| Front tooth next to natural teeth | E-max, or layered zirconia | Translucency and surface detail that can blend with the neighbours |
| Front tooth that is dark or has a metal post | Layered zirconia | The zirconia core masks the dark colour underneath |
| Premolar that shows when you smile | E-max or zirconia | A balance of appearance and strength, depending on the bite |
| Molar with a normal bite | Monolithic zirconia, or E-max if space allows | Chewing forces are highest at the back |
| Heavy grinding or clenching | Monolithic zirconia, with a night guard | No layer to chip; protection reduces wear on both sides |
| Short tooth or limited space | Monolithic zirconia | Remains strong in a thinner section |
| Single missing tooth restored with an implant | Zirconia-based implant crown | Designed on the implant; fixing method chosen by the dentist |
Grinding is a common reason crowns fail early. See teeth grinding.
Why it matters who makes your crown
The same material can look very different depending on who designs and finishes it. Crowns for Creative Arts patients are made at Creative Art Dental Lab, a separate laboratory in the same building as the clinic.
- Digital design: the crown is designed on screen from an intraoral scan, with the thickness checked against what the chosen ceramic needs.
- Milling and finishing: it is milled, then stained, glazed or hand-layered depending on the type.
- Shade in person: the ceramist can see your teeth under the same light as your dentist, which matters most for a single front crown.
Lab time is typically 3–5 working days depending on complexity; crowns are not made in a single visit. Our guides to how crowns are made and custom shade matching go step by step.
Implant crowns: the tooth on top of an implant
An implant crown replaces the visible tooth on a dental implant. It is usually zirconia-based and is either screw-retained, held by a small screw accessed through the biting surface and sealed over, or cemented onto an abutment. Screw-retained crowns can be removed for maintenance; cemented crowns have no access hole but need excess cement cleaned away carefully. The dentist chooses between them case by case.
Shade and gum shape matter more on an implant than on a natural tooth, especially at the front, because the gum around an implant behaves differently. See implant restorations for how the lab makes them, and single tooth implants for the treatment itself.
Temporary crowns: what to expect while you wait
After a tooth is prepared, a temporary crown is fitted at the same visit while the final crown is made. It protects the prepared tooth from sensitivity and bacteria, keeps the neighbouring and opposing teeth from drifting, and holds the gum in shape.
Temporary crowns are made from a softer resin material and fixed with a weaker cement on purpose, so they can be removed easily at the fitting appointment. That means they can occasionally come loose. Avoid sticky and very hard foods on that side, slide floss out sideways rather than pulling it up, and contact the clinic during opening hours if the temporary comes off. Keep it, and do not leave the tooth uncovered for days.
Need a crown, or replacing an old one? See how our dentists assess the tooth, choose the material and work with the lab in the same building.
Dental crowns at Creative ArtsA crown is not always the answer
A tooth with a moderate cavity may only need a tooth-coloured filling, and a sound front tooth that needs a change in colour or shape is usually better treated with a veneer, which removes less tooth. See veneers vs crowns. Your written plan lists the alternatives for each tooth.
How long do different types of crowns last?
Well-made ceramic crowns commonly last 10 to 15 years or more with good care, and the material is rarely the first thing to fail. More often the problem is the tooth or gum around the crown: decay starting at the edge, gum recession exposing the margin, or a fracture of the tooth underneath.
Each type has a typical weak point. Layered zirconia and porcelain-fused-to-metal crowns can chip their surface layer. E-max can fracture if it is too thin for the bite. Monolithic zirconia rarely chips, which is why it is favoured for grinders. Daily cleaning, regular check-ups and a night guard if you grind protect every type. If you are comparing quotes, dental crowns cost explains why material and lab work affect the price.