Dentures are removable false teeth. They can be used to replace one or more missing teeth. Complete dentures, which are used to replace all of the teeth in an arch, are usually made out of a very strong acrylic material. Partial dentures, which are used to replace a smaller number of teeth, can be made out of a acrylic or acrylic with a metal framework. If dentures are right for you, your dentist will review all of the available options.