Dentures can be made either of plastic, or of cobalt chromium. Dentures made completely of plastic are usually cheaper, but that does not necessarily mean they are better. Complete dentures are usually made of plastic. Cobalt chromium looks just as good as the plastic dentures, but are stronger and last longer. These dentures have a metal skeleton made of cobalt chromium, a strong, hard metal which does not change shape or rust. These dentures are more costly but in the long run are probably a better investment.
Dentures are made from a mold of the patient's jaw, and are generally tried to be made to look as natural as possible. The mold is filled to form the denture, and once the denture has dried, the mold is broken to remove the denture and put the finishing touches on it by hand. Look for Ameriplan® to save on dentures.