engleski

RAPID PROTOTYPING TECHNOLOGY IN IMPLANT DENTISTRY

Modern production today cannot be imagined without the use of modern tools, such as software for 3D design and equipment for rapid prototyping. Rapid prototyping (RP) is a manufacturing technology used in many industries to develop high fidelity 3D models from Computer Aided Design (CAD), 3D digitized or computed tomography data. Today, there are many different RP technologies and processes but the most common are stereolitography (SLA), selective laser sintering (SLS), 3D printing (3DP), fused deposition modeling (FDM) and laminated object manufacturing (LOM). Application of RP in dentistry includes education, preoperative planning, customized medical implant design, tissue engineering etc. Using RP models and techniques when planning a surgery results in possibility to exactly evaluate the position, size and anatomy of malformation, or implant size and position. Using 3D imaging (CT), physical models of anatomy can be constructed, which is useful as they simulate the surgical procedure and allow the construction of custom-made implants. Clinical reports describe using CAD/CAM technology and CT imaging coupled with interactive planning software in implant surgery. RP models can be used to reshape implants that will be used in surgery. The dimensions of plates and screws can be determined during surgery planning. Selective laser sintering (SLS) offers the advantage to make use of an extended range of basic materials including polymers, metals and ceramics. RP technology is mostly used for manufacturing fixtures and custom made implants. Regarding SLS technology there are some processes like fused deposition modeling (FDM) that are trying to achieve bio compatible surfaces of implants made from acrylonitrile butadiene styrene (ABS). In the next decade it can be expected that there will be technologies for printing functional live organs, bones, teeth and jaws making the reconstructive surgery a lot less invasive

rapid prototyping; reverse engineering; dentistry; CAD; 3D visualization; computed tomography

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