Most dentures are made of acrylic and can be fabricated two different ways.
The teeth are made of plastic, porcelain or a combination thereof. Dentures can be fabricated to fit over endodontically treated teeth and a complete denture can be attached to dental implants to allow for a more secure fit of the appliance.
Dentures over a normal course of time will wear and need to be replaced or relined in order to keep the jaw alignment normal. The alignment will slowly change as the bone and gum ridges recede or shrink due to the extraction of the teeth. Regular dental examinations are still important for the denture wearer so that the oral tissues can be checked for disease or change.