Studying the Optical 3D Accuracy of Intraoral Scans: An In Vitro Study.

Journal of Healthcare Engineering
Pokpong AmornvitChaimongkon Peampring

Abstract

There are various scanners available in dental practice with various accuracies. The aim of this study was to compare the 3D capturing accuracy of scans obtained from Trios 3 and Dental Wings scanner. A reference mandibular model was printed from FormLab with reference points in three axes (X, Y, and XY and Z). The printed model was scanned 5 times with 3 scans: normal scan by Trios 3 (Trios 3A), high-resolution scan by Trios 3 (Trios 3B), and normal scan by Dental Wings. After scan, the stereolithography (stl) files were generated. Then, the measurements were made from the computer software using Rhinoceros 3D (Rhino, Robert McNeel & Associates for Windows, Washington DC, USA). The measurements made with digital caliper were taken as control. Statistical analysis was done using one-way ANOVA with post hoc using Sheffe (P < 0.01). Trios 3 presented higher accuracy than Dental Wings and high resolution showed better results. The Dental Wings showed less accuracy at the measurements >50 mm of length and >30 mm in width. There was no significant difference (P > 0.05) of control with the Trios 3A and Trios 3B. Similarly, for the measurements in Z-axis, there was no significant difference of control with each scan (Trios 3A, Trios 3...Continue Reading

References

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Dec 18, 2019·International Journal of Environmental Research and Public Health·Pokpong Amornvit, Sasiwimol Sanohkan

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Software Mentioned

3Shape TRIOS
Excel
SPSS
Rhinoceros 3D
iTero
FormLab
Planscan
3Shape
Dental Wings

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