Rapid Prototyping and its Application in Dentistry

Medical implants and biological models have three main characteristics: low volume, complex shape, and can be customized. These characteristics suit very well with Rapid Prototyping (RP) and Rapid Manufacturing (RM) processes. RP/RM processes are fabricated part layer- by-layer until complete shape finished from 3D model. Biocompatible materials, such as Titanium and Titanium alloy, Zirconium, Cobalt Chromium, PEEK, etc, are used for fabrication process. Reverse Engineering (RE) technology greatly affects RP/RM processes. RE is used to capture or scan image of the limb, cranium, tooth, and other biological objects. Three common methods to get the image are 3D laser scanning, Computer Tomography (CT), and Magnetic Resonance Imaging (MRI). Main RP/RM techniques used in Dentistry are Stereotype Lithography Apparatus (SLA), Fused Deposition Modeling (FDM), Selective Laser Sintering (SLS), and ink jet printing. This article reviews the changing scenario of technology in dentistry with special emphasis on Rapid Prototyping and its various applications in Dentistry.