Materials Gold Alloy Used when maximum strength is desired and appearance is not a factor. Titanium Used when maximum strength is desired, appearance is not a factor, and a gold alloy is not biocompatible. There are different purities of titanium, with grade 1 being the purest. This is the metal used in joint replacement, dental implants, and bone pins.
Cost is the same as for a gold alloy.
Non-Precious Alloy Used when maximum strength is desired, appearance is not a factor, but cost is most important. Since it does not contain any gold, cost is less. There are 2 basic formulations, one that contains nickel and one that is nickel-free. Porcelain Used when appearance and wear resistance is the most important factor. It is much more fragile than metal and may break easily.