Porcelain-fused-to-metal and zirconia dental crowns

Porcelain-fused-to-metal, and zirconia dental crowns can be color matched to your adjacent teeth (unlike the metallic crowns).  However, more wear to the opposing teeth occurs with this crown type compared with metal or resin crowns. The crown’s porcelain portion can also chip or break off.  Sometimes the metal underlying the crown’s porcelain can show through as a dark line, especially at the gum line and even more so if your gums recede.