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Updated: Jul 4, 2026
Accuracy in Dental Medicine, A New Way to Measure Trueness and Precision
Published on: April 29, 2014
Evaluation of trueness and precision of 3 face-scanning devices
Sabahattin Bor1, Fırat Oğuz1, Deniz Özdemir1
1Department of Orthodontics, Faculty of Dentistry, İnönü University, Malatya, Turkey.
Introduction:
This study evaluated the trueness and precision of three 3-dimensional facial scanning devices-MetiSmile (MS), Revopoint Miraco Plus (RMP), and Qlone Dental application (QA) using an iPhone 15 Pro.
Methods:
Forty-seven participants were scanned using MS, RMP, and QA under standardized conditions. Comprehensive accuracy evaluations (trueness and precision) were conducted. Deviations were assessed through superimposition, and the root mean square (RMS) was used to quantify these deviations. The deviation analysis was performed using CloudCompare software (v2.13.2, www.cloudcompare.org).
Results:
Trueness analysis showed that MS and RMP produced comparable results with deviations below 0.5 mm, whereas QA exhibited significantly higher deviations (P = 0.003; mean RMS = 0.938 mm for full-head scans). Precision analysis revealed MS had the lowest mean RMS deviation (0.309 mm), indicating the highest consistency, followed by RMP (0.362 mm). QA demonstrated the least precision (mean RMS = 0.657 mm). Comparative analysis indicated MS and RMP scans were similar, whereas QA showed greater deviations.
Conclusions:
The MS and RMP devices exhibit high accuracy, making them suitable for orthodontic diagnostics and treatment planning. Although less accurate, the QA is also applicable for these purposes.
