Evaluation of the accuracy of 2 digital intraoral scanners: A 3D analysis study

Evidence for the accuracy of a recently introduced intraoral scanner is lacking. The purpose of this in vitro study was to evaluate and compare the trueness (validity) and precision (reliability) of 2 intraoral scanners by scanning a quadrant and a sextant. A maxillary typodont with plastic teeth ma...

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Bibliographic Details
Published in:The Journal of prosthetic dentistry 2021-12, Vol.126 (6), p.787-792
Main Authors: Alzahrani, Saeed J., EL-Hammali, Hind, Morgano, Steven M., Elkassaby, Heba
Format: Article
Language:English
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Summary:Evidence for the accuracy of a recently introduced intraoral scanner is lacking. The purpose of this in vitro study was to evaluate and compare the trueness (validity) and precision (reliability) of 2 intraoral scanners by scanning a quadrant and a sextant. A maxillary typodont with plastic teeth made from a shade A3 polymethyl methacrylate was scanned (n=10) with each intraoral scanner (Planmeca Emerald and 3Shape TRIOS 3) to obtain sextant and quadrant scans. Control scans were made with an industrial optical scanner. The scans were analyzed with a 3D reverse engineering software program and an independent samples t test and general linear model 2-way analysis of variance (α=.05). The 3Shape TRIOS 3 scanner showed no significant difference between the sextant and quadrant scans in trueness (P=.118) or in precision (P
ISSN:0022-3913
1097-6841
DOI:10.1016/j.prosdent.2020.10.004