E-max or zirconia for front teeth: which should you choose?

Choosing E-max or zirconia for front teeth is one of the most common decisions in a smile makeover, and one of the most misunderstood. You will read that E-max is “the pretty one” and zirconia is “the strong one”. That is roughly true, but it leaves out the things that really decide which material works for your teeth: the colour of the tooth underneath, your bite, and whether the crown stands alone or is part of a bridge. Here is how our dentists think it through for the six front teeth.

The two materials in plain terms

E-max

E-max is a brand name, made by the dental company Ivoclar, for a glass-ceramic called lithium disilicate. It is a glass with tiny crystals grown through it to make it much stronger than ordinary porcelain. Its main strength is how it handles light. Natural enamel is slightly see-through, especially at the biting edge, and E-max behaves in a similar way. Light goes into the crown, scatters and comes back out, so the tooth looks alive rather than flat.

E-max is also bonded to the tooth with a resin adhesive, which makes the tooth and crown act more like one unit. It can be made thin, which helps when only a small amount of tooth should be removed.

Zirconia

Zirconia is a much denser ceramic. Early zirconia was chalky white and opaque, fine for back teeth but not convincing at the front. Modern zirconia is made in graded blocks that are more translucent at the edge and warmer in colour at the neck. It is a big improvement, though in most cases still a little less lifelike than E-max side by side.

Zirconia’s advantages are strength and the ability to mask. It is tougher than E-max and can block out a dark tooth or a metal post underneath.

What the research says about strength and survival

Both materials do well in clinical studies. A 2026 systematic review of single crowns found five-year survival of about 98.5% for monolithic lithium disilicate (the E-max type) and about 97% for zirconia crowns, with no meaningful difference between front and back teeth for these materials. Both monolithic E-max and monolithic zirconia had fewer chips and fractures than crowns with a porcelain layer on top.

So for single front crowns, the evidence does not force you one way. The choice is about looks and your particular mouth. Strength becomes the deciding factor in a few specific situations, which we cover below.

Translucency versus masking: the key trade-off

Think of a crown as a window. The more see-through the window, the more natural the tooth looks, but the more you see of what is behind it.

• On a healthy, light-coloured tooth, translucency is a bonus. E-max picks up the natural colour of the tooth underneath and looks very real.
• On a dark tooth, translucency is a problem. A tooth that went grey after a knock, a root canal or old tetracycline staining will show through a thin, clear crown as a dull or greyish look.
• A metal post inside a root-filled tooth, or an old metal core, will also shadow through translucent ceramic.

In these cases zirconia, or a more opaque grade of E-max, gives a cleaner result. We check the colour of each prepared tooth with a shade guide and photographs before the laboratory chooses the final material.

When we lean towards E-max at the front

• Single crowns on teeth with good natural colour
• Patients who want the most natural light and edge effect
• Thin-walled teeth where minimal preparation matters
• Normal bite with no signs of heavy grinding
• Cases where a neighbouring tooth is natural and the crown must blend in exactly

When we lean towards zirconia at the front

• Bridges, where a false tooth is joined to crowns either side
• Heavy grinders and clenchers, or teeth with visible wear facets
• Dark or root-filled teeth, and teeth with metal posts
• Deep bites where the lower front teeth hit hard against the back of the upper crowns
• Replacing old metal-ceramic crowns where the tooth underneath is discoloured

The bridge point deserves a word. In a bridge, the joins between the false tooth and the crowns either side take a lot of bending force. Zirconia handles that better than E-max, so for anything more than a single crown at the front, zirconia is usually the safer option.

Crowns, veneers and how much tooth is removed

Many people who ask about E-max or zirconia for front teeth do not actually need full crowns. If the teeth are healthy and the goal is mainly colour, shape or small gaps, an E-max laminate veneer covers only the front surface and removes much less tooth. Veneers are usually E-max rather than zirconia, because they are thin and rely on bonding and translucency. Our veneers in Turkey page explains how they differ.

A full crown is the right choice when a tooth is heavily filled, broken, root-filled or already crowned. We prefer to save healthy tooth structure, so we will tell you if a tooth could have a veneer or bonding instead of a crown.

Mixing materials in one smile

A combination is very common and can give the best of both. Typical patterns we use:

The ceramist matches the shade across the different materials so the join is not visible. What matters most is that every tooth in the smile line looks like it belongs to the same set. A good result in one material is better than a patchy result from mixing carelessly, which is why we plan the whole smile at once using digital smile design and a trial smile before any tooth is prepared.

Questions to ask before you decide

1. What colour is the tooth underneath, and will it show through?
2. Do I grind, and do I need a night guard?
3. Is this a single crown or part of a bridge?
4. Could this tooth have a veneer instead of a full crown?
5. Which material will be used on each tooth, written in my plan?

It also helps to bring photos of your teeth from years ago, if you have them. They show the natural shape and colour you had, which many patients prefer to copy rather than choosing a brighter, more uniform look.

At our clinic, the written plan lists the material tooth by tooth. If we suggest zirconia on one tooth and E-max on the next, we explain why.

How appearance holds up over time

Both materials keep their colour well, because glazed ceramic does not absorb stains the way enamel does. What changes over time is usually the gum. If gums recede, the edge of the crown and the root above it can become visible. That is the same for E-max and zirconia. Good cleaning and gum care protect the look of either material.

Natural teeth next to crowns can darken with age and stains. If you plan to whiten, do it before the crown shade is chosen, because crowns do not whiten. Our crowns page covers this in the planning steps.

Ask for a tooth-by-tooth plan

Send us clear photos of your smile, front and side, plus an X-ray if you have one. Our dentists will suggest a material for each tooth and explain the reasons in writing, with an itemised price. Contact us through the contact page or on WhatsApp.

Common questions

Can people tell the difference between E-max and zirconia?

In good light, up close, an experienced eye sometimes can. Modern multi-layer zirconia is far more lifelike than early versions. Most people will not notice, especially when the whole front is done in one material and shade.

Is E-max strong enough for front teeth?

Yes, for most people. Clinical research shows lithium disilicate crowns, the material E-max is made from, have very good survival. The main exceptions are heavy grinders and bridges with a false tooth, where zirconia is the safer choice.

Which is more expensive?

At our clinic an E-max crown is £225 and a zirconia crown is £150. Prices for all treatments are on our prices page, and your written plan shows exactly which material is used on which tooth.

My front tooth is grey after a root canal. Which material?

Usually zirconia, or E-max made in a more opaque grade. A dark tooth shows through very translucent ceramic. We check the colour of the prepared tooth before choosing the final material.

Can I mix E-max and zirconia in one smile?

Yes, and it is common. The ceramist matches the shades so the change between materials is not visible. A typical mix is E-max on the front six and zirconia on the premolars and molars.

Sources

1. Pjetursson et al. Survival of metal-ceramic, veneered and monolithic all-ceramic single crowns, Part 1. Int J Prosthodont 2026
2. Sailer et al. All-ceramic or metal-ceramic single crowns? A systematic review. Dent Mater 2015
3. Oral Health Foundation: Crowns
4. Oral Health Foundation: Veneers

Checked October 2026. Where we give our own view as a clinic, we say so.