The bridge replacing one or more teeth, having been lost or compromised, for functional and / or aesthetic purposes. The fixed denture is fixed to the prepared tooth or to the implant, and can’t be removed from the patient.
Interim Fixed Dentures
The function of the fixed provisional denture, produced in resin, is to protect the abutments of the prepared teeth, waiting for the final prosthesis to be ready.
The abutments are nothing more than teeth “filed” or “shrunk” with the drill.
The fixed denture replaces teeth and can not be removed from the patient. The elements positioned on the tooth or on a root are defined crowns; if built on teeth adjacent to the gap with the aim of restoring missing teeth are defined bridges; if placed on implants are defined dentures on implants. Veneers are thin ceramic layer attached to the front teeth for aesthetic and functional reasons.In recent years, computer-assisted fixed restorations using CAD / CAM technology has played an important role in this field.
In addition to traditional metal-ceramic crown or ceramic metal coating, modern dentistry has developed materials capable of excellent functional features and excellent aesthetic qualities, such as zirconium – ceramic and full-ceramic crowns with greatly improved optical properties.
The term prosthesis refers to all the prostheses suitable for the replacement of entire arches or parts of it, which can be easily removed by the patients themselves.
A total denture consists of a resin base, on which are mounted the dental elements (ceramic or composite resin crowns). All remaining teeth or roots are missing (edentulism), so masticator loads are completely downloaded to the mucosa and underlying bone. To increase the retention of the denture few implants could be inserted in the edentulous ridge with anchoring function.
A partial denture is a removable partial substitution consisting of a metal superstructure to which missing teeth have been anchored. The denture is used when edentulous areas are too large or too numerous to be restored with a fixed denture, or when the remaining teeth are not stable enough to support a fixed prosthesis. The prosthesis is stabilised in the mouth by means of clasps to ensure the stability of the prosthesis. An aesthetic alternative to the clasps are attachments: they are composed of two parts detachable from each other, one of which is welded to a crown that covers the abutment tooth (prepared and reduced to a stump) and welded to the frame.