An electronic search using PubMed with specific keywords to obtain potential references for review. The aim of this review was to assess the accuracy of the different IOS and the effect of different variables on the accuracy outcome. The development of three-dimensional technology and the trend of increasing the use of IOSs in dental office routine lead to the need to assess the accuracy of intraoral digital impressions.
Intraoral scanners (IOSs) are used for capturing the direct optical impressions in dentistry.