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Table 1 Types of dental laboratory scanners, industrial 3D scanners, and CMMs used in the cited references and their accuracy

From: Trueness and precision of digital implant impressions by intraoral scanners: a literature review

Accuracy of reference scanners
Scanner Manufacturer Reference Accuracy
Dental Laboratory Scanner
 Activity 880 scanner Smart Optics Amin 2016 [23]
Marghalani 2018 [9]
Precision: 10 μm
 D-250(3Shape) 3 Shape Flugge 2016 [15] 2 μm
 Freedom UHD® DOF Mangano 2019 [24] 5 μm
 Iscan D103I Imetric Papaspiridacos 2016 6 μm
 Iscan D104I Imetric Mangano 2016 [25] Trueness < 5 μm, Precision < 10 μm
 Lava Scan ST scanner 3M Andriessen 2014 [20]
Lee 2015
Not found
Industrial 3D scanner
 ATOS Compact Scan 5M GOM Arcuri 2019 [26]  
 ATOS Core 80 GOM Alikhasi 2018 [19]
Nedelcu 2018 [8]
Precision 4 μm (Alikhasi 2018) [19]
Precision 0.6 μm (Nedelcu 2018) [8]
 Infinite Focus Standard Alicona Imaging Ender 2013 Trueness 5.3 ± 1.1 μm, Precision of 1.6 ± 0.6 μm (Ender 2013)
Manufacturer’s information: Trueness 0.5 μm, Precision 0.1 μm
 ScanRider V-GER Imburgia 2017 [27] Trueness 5–10 μm, Precision 15–30 μm
 stereoSCAN neo AICON 3D Systems KimRJY 2019 [28]  
Coordinate measuring machine (CMM)    Maximum error (L = Length: mm)
 CONTURA Zeiss Kim 2019 Trueness: 1.5 + L/350 (Manufacturer’s information: Truness 0.7 μm, Precision 0.55 μm (Kim 2019)
 Crista-Apex Mitutoyo Gimenez 2015 [18]
Gimenez 2017
Gintaute 2018 [29]
Trueness: 1.9 + 3L/1000 μm
 Crista Apex S Mitutoyo Menini 2017 Trueness: 1.9 + 3L/1000 μm
 DEA Mistral Brown & Sharpe Alikhasi 2018 [19] Trueness: 3.5 + L/250 μm
 Edge ScanArm HD FARO Sami 2020 [30] Trueness: 25 μm, Precision: 25 μm
 Global Silver Performance 7.10.7 Brown & Sharpe Chia 2017 [31]
Tan 2019 [10]
Trueness: 1.9–2.0 μm
 Leitz PMM 12106 Zeiss Van der Meer 2012 [13] Trueness: 0.3 μm, Precision: 0.1 μm
 SmartScope Flash, CNC 300 Optical Gaging Products Di fore 2019 Trueness: 2.8 + 5 L/1000 μm
 UPMC 550-CARAT Zeiss Ajioka 2016 [14]
Fukazawa 2017 [12]
Trueness: 0.8 + L/600 μm