Implant-supported prostheses are successful treatment modalities that can be used for single tooth replacement to full mouth rehabilitation. Depending on the number of the implants used in fully edentulous patients, the restoration can be removable or fixed. Some of the other factors that determine the type of the prosthesis include the remaining amount of bone, the amount of inter-occlusal space, and the patient’s wishes. Fixed implant-supported prostheses usually need five to nine implants in the mandible and six to 10 implants in the maxilla.
Generally, fixed implant-supported prostheses can be divided into screw-retained and cement-retained prostheses. Each treatment option has several advantages and disadvantages compared to the other. The main advantages of cement-retained prostheses are esthetics and the passive fit, while screw-retained prostheses offer easy retrievability.