Fig. 5From: Effect of assistive devices on the precision of digital impressions for implants placed in edentulous maxilla: an in vitro studyAverage discrepancy in each type for each IOS in analysis 1 (µm). The lines on the bars of the bar graph indicate the standard deviation of the measured discrepancies. IOS intra-oral scanners, PS Primescan, TDS true definition scanner, TR TRIOS3 scannerBack to article page