These were new when I got out of dental school in 1981.  If you have a crown or bridge this is probably what you got.

They last very well, are often quite natural looking, and are sometimes still the only choice if a bridge must be more than 3 teeth long.  You shouldn’t plan to have yours replaced due to any defects. 

Once we finally learned how to control the “rusting” process during the melting of the porcelain we were able to use these crowns and get away from the yellow gold restorations which of course, nothing sticks to. 

When we make these we have to go to great lengths to hide the gray band at the gumline which almost all these restorations have of necessity.

These are the latest restorations to be replaced, in 2002, by all porcelain bridges, as you can read in the “all porcelain bridges” section.