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The Computer Aided Designing Computer Aided Manufacturing (CAD/CAM) technology has become an increasingly popular part of dentistry over the past 25 years(3). The development of CAD/CAM technology in restorative dentistry has evolved drastically(4). By addressing the various dental office issues, digital impressions, with its enormous benefits, along with CAD CAM will make digital intraoral scanning into a routine procedure for most dental restorative procedures in the future. Furthermore, digital impressions reduce the number of visits required for treatment and also increasing effectiveness of the treatment in terms of accuracy and precision. Patients will thereby be benefitted from the comfort and the pleasant experience offered at the dental chair. This makes the restorations fabricated from the lab more consistent, requiring reduced chair time. With the popularization of such a technology, tremendous growth in several areas of dentistry that can potentially benefit from digital impression taking and digital models (restorative dentistry, prosthodontics, orthodontics , dental implantology) in the coming years and witness a true digital revolution in the field of dentistry. This would make treatment planning more efficient with reduced discomfort and increased treatment efficiency. It allows the use of newer high strength materials with excellent biocompatibility combined with, provisions for aesthetic designs, improved precision of fit and longevity. However, these advantages must be balanced with the high initial cost of CAD/CAM systems and the need for additional training. The CAD/CAM systems offer the advantage of automation of fabricating dental restorations with increased quality over a short period of time. The Machinable ceramics are extremely suitable for the fabrication of restorations by CAD/CAM technique as they can be designed and milled in their soft pre-sintered condition and subsequently sintered to improve their physical properties. New high-strength core materials have been developed for all-ceramic restorations. However, most of the systems are limited to replacement of the anterior and premolar teeth, require large connector dimensions and may require the use of more technique sensitive clinical procedures such as adhesive cementation. The article gives a critical insight on digital impressions and various CAD/CAM technologies available for fabrication of restorations and prosthesis

Computer Aided Designing/Computer Aided Manufacturing in Dentistry (CAD/ CAM) – A Review