What is the difference between e.max and zirconia?
Both are tooth-coloured ceramics without metal. e.max is a glass ceramic (lithium disilicate) that lets light through much like natural enamel. Zirconia is a much denser ceramic, about twice as strong, and less translucent. In short: e.max is usually chosen for looks, zirconia for strength.
Neither is “better” in general. Each suits different teeth, different bites and different kinds of restoration, and a good plan often uses both.
Which looks more natural?
e.max, in most cases. Because it lets light pass through, it picks up the colour of the tooth underneath and looks alive at the edges, which matters most on front teeth. A hand-layered e.max veneer can copy the slightly clearer edge and warmer colour near the gum that natural teeth have.
Zirconia has improved. Newer translucent grades look far more natural than early zirconia, and zirconia can be layered with porcelain on the visible side. Still, for a single front tooth next to natural teeth, e.max is usually easier to match.
Which is stronger?
Zirconia. It resists cracking under heavy load far better, which is why it is used for back teeth, long bridges and full arches on implants, where chewing forces are highest. e.max is strong enough for front teeth and most single crowns, and its strength in the mouth also depends on how well it is bonded to the tooth.
Strength is not everything. A very hard material can wear the opposite natural tooth if its surface is left rough; a well-polished or glazed surface reduces this. Your ceramist finishes the surface with that in mind.
Which is better for veneers?
e.max, almost always. Veneers are thin, sit on the front teeth and are mainly about appearance. e.max can be made very thin, bonds strongly to enamel and lets light through like the tooth itself. Zirconia veneers exist but are less common because they are more opaque and bond less predictably.
Which is better for crowns?
It depends on the tooth. For front crowns, e.max usually gives the more natural result. For back teeth, especially if you clench or grind, zirconia is often the safer choice. For a crown on an implant, both can work; the doctor considers your bite, the space available and how the crown meets the gum.
What about bridges and full arches on implants?
Zirconia. A bridge spans a gap and carries more load at its joints, and a full arch on four or six implants takes the whole chewing force of one jaw. Zirconia’s strength makes it the standard choice here. At the front, it is often layered with porcelain for a more natural look. You can read how a full arch is planned on our All-on-4 page.
Does the choice change the price?
Sometimes, but less than you might think. The bigger difference is usually how the restoration is made: layered by hand by a ceramist, or milled from a block and stained. Hand layering takes hours per tooth and gives more control over shade and translucency. Ask every clinic which method they use, and compare quotes on that basis.
Do I grind my teeth, and does it matter?
It matters a lot. Grinding and clenching put heavy, repeated load on ceramics. If your teeth show signs of wear, the doctor may suggest zirconia for back teeth, a slightly different design, and a night guard to protect the result. This is checked at the first examination; many people grind at night without knowing it.
How do we choose for you?
The doctor and the ceramist look at your bite, the teeth to be treated, the colour of the neighbouring teeth and what you want to change. Your written plan names the material for each tooth, the brand (for example e.max from Ivoclar) and who makes it. At the try-in you see the result in daylight before anything is fixed.
Not sure yet? Send us your photos and the doctor will explain which material suits which tooth in your case.