All ceramic crowns or metal free crowns may be made of porcelain, resins, or dental ceramic materials. They create an extremely natural-looking appearance and are typically used on front teeth. The tooth-colored ceramic material is translucent, like the enamel of your natural teeth, and size and shade can be carefully matched to complement the rest of your smile. However, ceramic dental crowns are not as resilient as metal crowns and do not function as well on back teeth, which sustain a lot of pressure from biting and chewing.
Dental crowns made of porcelain fused to metal are stronger than all-ceramic versions and more aesthetically pleasing than those made of metal. However, their metal shell gives porcelain fused to metal crowns an opaque appearance. Because they lack the reflective quality of natural teeth, porcelain fused to metal crowns are not as discreet as all ceramic crowns. Additionally, over time, a thin metal band may be visible along the gum line with this type of crown.