![]() ![]() The fourth scanner, Omnicam, had intermediate trueness and precision. The Wilcoxon signed rank, Kruskal-Wallis, and Dunn tests were used to detect differences for trueness, precision, and scanning time (α=.05).Ĭarestream CS 3500 had the lowest overall trueness and precision compared with Bluecam and TRIOS Color. Additionally, scanning time was recorded for each scan performed. ![]() ![]() The digital standard tessellation language (STL) files from each scanner were then registered to the reference file and compared with differences in trueness and precision using a 3-dimensional modeling software. The printed reference cast was scanned 10 times with each intraoral scanner. The reference cast was digitized using a laboratory-based white light 3-dimensional scanner. A complete-arch reference cast was created and printed using a 3-dimensional dental cast printer with photopolymer resin. The purpose of this in vitro study was to evaluate the complete-arch accuracy of 4 intraoral scanners based on trueness and precision measurements compared with a known reference (trueness) and with each other (precision).įour intraoral scanners were evaluated: CEREC Bluecam, CEREC Omnicam, TRIOS Color, and Carestream CS 3500. Intraoral scanners have shown varied results in complete-arch applications. ![]()
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