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  • Maxilla bone pre-surgical evaluation aided by 3D models obtained by rapid prototyping
    Publication . Queijo, Luis; Rocha, João; Barreira, Luísa; Ramos, André; San Juan, Manuel; Barbosa, Tiago M.
    For implant planning and placement, the association of CAD and CAM techniques furnishes some advantages, regarding 3D determination of the patient’s jaw anatomy and fabrication of both anatomical models and surgical guides (Verstreken et al. 1996). In this paper we will present Rapid Prototype (RP) use as a tool, able to produce solid models of a maxilla in order to allow pre-surgical conditions evaluation in a pa-tient who has lost bone tissue and needs dental implants. In this process, three-dimensional reconstruction has been made from a bi-dimensional image file, obtained by Computerized Tomography (CT) and a set of partial and total biomedical models have been manufactured to allow maxilla analysis. Rapid Prototyping technique used has been three-dimensional printing (TDP or 3DP) which allows a good reality simulation.
  • A surgical training model manufacture using rapid prototyping technology
    Publication . Queijo, Luis; Rocha, João; Barreira, Luísa; Barbosa, Tiago M.; Pereira, Paulo Miguel; San Juan, Manuel
    The use of rapid prototyping has increasingly begun to reveal itself as a tool of great value in supporting medical activity. From two-dimensional medical images from computed tomography (CT) or magnetic resonance imaging (MRI) it is possible to obtain three-dimensional models. The models produced by rapid prototyping technologies are useful both in educational and medical-surgical environments. It can simplify the diagnosis of certain diseases, the development of complex surgical procedures, the prostheses and medical devices manufacture and the visualization of anatomical structures in educational environment.