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3D Printing is a new emerging technology which involves Computer Aided Designing and Computer Aided Manufacturing (CAD/CAM) of 3-Dimensional objects. In the recent few years there is increased use of digital technologies in healthcare sector. The 3D printing technology first used in dentistry to produce dental implants. Computer Aided Designing and Computer Aided Manufacturing (CAD/CAM) involves subtractive and additive manufacturing of object. This review article aims to discuss various types of computer aided additive manufacturing technology with their advantages and disadvantages.