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ePaper created 2016-10-04, 09:33:57 | version 1.38.0
| case report full mouth restoration 32 CAD/CAM 3 2016 Adaptation of traditional working methods to the creation of Cr-Co ceramic restoration with CAD/CAM technology Author: Richard Demange, France This article describes the adaptation of tried and tested fixed prosthesis work protocols to new CAD/CAM techniques. Based on a complete upper and lower bridge case, we also address technical and economic interests by offering a sealed implant prosthesis with a Cr-Co coating achieved by laser microfusion or trans-screwed by machining. Case presentation A 60-year-old female patient was completely edentulous and no longer wanted to use remov- able prosthesis. The dentist proposed placing six implants on her lower jaw. For aesthetic reasons (avoidance of occlusal screwing channels), the future ceramic bridge will be sealed on titanium implantpillars.Fortheupperjaw,herecommended inserting ten implants with multi-unit pillars to facilitatetheplacementofatrans-screwedceramic bridge. Implant placement and adaptation of the existing prosthesis The placement of maxillary and mandibular im- plants was delayed by several months in accor- dance with the patient’s wishes. As the mandibular prosthesis poses the greatest problem in terms of stability and fixture, it was implanted first. Fig. 1: Initial situation. Fig. 2: Simeda modelling of the maxillary framework. Fig. 3: Dental Wings modelling of the mandibular framework. Fig. 4: Adjustment of the framework volume tooth by tooth. Fig. 5: Connectors in the form of ‘girders’ on the entire framework. Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 32016