A dental prosthesis is an intraoral inside the mouth prosthesis used to
restore reconstruct intraoral defects such as missing teeth, missing
parts of teeth, and missing soft or hard structures of the jaw and
palate. Prosthodontics is the dental specialty that focuses on dental
prostheses. Such prostheses are used to rehabilitate mastication
chewing, improve aesthetics, and aid speech. A dental prosthesis may be
held in place by connecting to teeth or dental implants, by suction, or
by being held passively by surrounding muscles. Like other types of
prostheses, they can either be fixed permanently or removable; fixed
prosthodontics and removable dentures are made in many variations.
Permanently fixed dental prostheses use dental adhesive or screws, to
attach to teeth or dental implants. Removal prostheses may use friction
against parallel hard surfaces and undercuts of adjacent teeth or dental
implants, suction using the mucous retention without or without aid
from denture adhesives, and by exploiting the surrounding muscles and
anatomical contours of the jaw to passively hold in place.