Dental medicine is advancing at an exceptionally fast rate, one of its main reasons being the integration of digital technologies. An example of this are intraoral scanners, which provide us with the opportunity to acquire a digital model as an alternative to conventional methods.The search was limited to full articles published in peer-reviewed scientific journals.Two factors affect accuracy: trueness and precision. Trueness refers to the deviation of the scanned object from its actual geometry. Precision refers to the deviation between multiple scans. For replacing conventional impression materials and gypsum models by digital systems, they must exhibit at least the same level of accuracy/ quality.At present, intraoral scanners appear as a reliable alternative to conventional methods for creating fixed restorations, on both natural teeth and implants.
Keywords:- conventional impressions
- digital systems
- intraoral scanners
- scanning strategy