Oral prosthesis is a term used to describe a dental device that is used to replace missing teeth or other parts of the mouth. It can be used to restore function, improve appearance, and provide support for other structures in the mouth. Dental prostheses are typically made from materials such as porcelain, metal, or acrylic. The most common type of oral prosthesis is a dental bridge, which is used to replace one or more missing teeth. Other types of prostheses include dentures, crowns, and implants.