Application of digital recording machines/gadgets provides more inventive, high quality dental restorations which in turn lead to utilize different types of dental scanners in contemporary dental practice. This review is aimed to provide the historical backgrounds of dental scanner and their various kinds; the benefits and pitfalls. An intensive search was performed in the available database with relevant keywords. Dental scanner used to measure the entire 3-dimensional (3D) of the external surface of a physical object either intraorally or extra orally from multiple directions. Implementation of the methods of 3D digitization in dental practice is a new methodology for dentistry which may revolutionize the routine techniques used commonly in dental practice. With this opportunity in hand- easier, faster, accurate and more predictable dentistry is anticipated.
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