The E-Max crown is the newest and most expensive type of crown. It is preferred over zirconium crowns because it is tougher and more durable. It is less prone to chipping than zirconium crowns. E-MAX crowns are made from lithium disilicate ceramic, a material that has been harvested for its translucent color and durability. As a result, you get a crown that is tough and durable, but looks exactly like your other teeth. The only downside of E-MAX crowns is the cost. E-MAX crowns are the best ones out there, so it is more than worth it to spend extra.