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 3B, and Dental Wings). Accuracy of the scan is affected by the length of the scanning area and scanning pattern. It is less recommended to Dental Wings scan >3-unit prosthesis and that crosses the midline.
Highlights
Academic Editor: Antonio Gloria ere are various scanners available in dental practice with various accuracies. e aim of this study was to compare the 3D capturing accuracy of scans obtained from Trios 3 and Dental Wings scanner
When dental laboratories receive a digital impression, they create a model from the data and either continue with the traditional fabrication procedure or rescan the model and fabricate the prosthesis. e dental technician can do all the design restorative works directly on the computer based on the digital file received
For the measurements in the Y-axis, Y2–Y4, there was no significant difference of each scan (Trios 3A, Trios 3B, and Dental Wings) compared to the control as Digital impressions reduce the patient discomfort; intraoral scanners (IOS) are time-efficient and simplify clinical procedures for the dentist and the laboratory technician, eliminating plaster models and allowing better communication with the dental technician and with patients. e accuracy of which influences the fit of the restorations, an important factor in the longevity of the final restoration [7, 8]
Summary
Academic Editor: Antonio Gloria ere are various scanners available in dental practice with various accuracies. e aim of this study was to compare the 3D capturing accuracy of scans obtained from Trios 3 and Dental Wings scanner. E aim of this study was to compare the 3D capturing accuracy of scans obtained from Trios 3 and Dental Wings scanner. Trios 3 presented higher accuracy than Dental Wings and high resolution showed better results. E Dental Wings showed less accuracy at the measurements >50 mm of length and >30 mm in width. For the measurements in Z-axis, there was no significant difference of control with each scan (Trios 3A, Trios 3B, and Dental Wings). 1. Introduction ere has been massive advancement in digital dentistry in the recent decade, especially since the invention of computeraided design/ computer-aided manufacturing (CAD/CAM) system, milling systems, rapid and automated prototyping, and three-dimensional (3D) printing of dental biomaterials, and these have revolutionized and created a new modality in dentistry [1]. A 3D file of an object is created which can be edited, and 3D printed. (1) Laser triangulation 3D scanning technology uses either a laser line or a single laser point to scan across an object
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