Tooth-colored crowns used to be made of porcelain and metal. But with the new technology available today, they can be made entirely of porcelain.
To have enough strength to withstand biting forces, porcelain crowns used to always be built upon a metal core. The dark metal inside the porcelain/metal crown causes a dark blue line to show at the edge of the crown.
New breakthroughs in adhesives and stronger porcelain materials now make it possible to make crowns entirely out of porcelain, which then can be bonded to the teeth. All-porcelain crowns maintain a translucency that makes them hard to tell from natural teeth.
Without metal, the problem of the dark blue line at the edge of the gums is eliminated. This allows your dentist to place the edge of the crown above the gum line, which is healthier for your tooth and gums.
When you want to improve your smile, all-porcelain crowns are a beautiful and natural-looking choice!