Effect of print layer height and printer type on the accuracy of 3-dimensional printed orthodontic models
Autor: | Christian S. Favero, John O. Wirthlin, Megan M. Short, Benjamin E. Cozad, Jeryl D. English, F. Kurtis Kasper |
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Rok vydání: | 2017 |
Předmět: |
Models
Anatomic 3d printed Computer science Orthodontics 030206 dentistry 02 engineering and technology 021001 nanoscience & nanotechnology law.invention 3d printer 03 medical and health sciences 0302 clinical medicine law Printing Three-Dimensional Maxilla Range (statistics) Humans Superimposition Layer (object-oriented design) 0210 nano-technology Stereolithography Simulation |
Zdroj: | American Journal of Orthodontics and Dentofacial Orthopedics. 152:557-565 |
ISSN: | 0889-5406 |
Popis: | Introduction Three-dimensional (3D) printing technologies enable production of orthodontic models from digital files; yet a range of variables associated with the process could impact the accuracy and clinical utility of the models. The objective of this study was to investigate the effect of print layer height on the accuracy of orthodontic models printed 3 dimensionally using a stereolithography format printer and to compare the accuracy of orthodontic models fabricated with several commercially available 3D printers. Methods Thirty-six identical models were produced with a stereolithography-based 3D printer using 3 layer heights (n = 12 per group): 25, 50, and 100 μm. Forty-eight additional models were printed using 4 commercially available 3D printers (n = 12 per group). Each printed model was digitally scanned and compared with the input file via superimposition analysis using a best-fit algorithm to assess accuracy. Results Statistically significant differences were found in the average overall deviations of models printed at each layer height, with the 25-μm and 100-μm layer height groups having the greatest and least deviations, respectively. Statistically significant differences were also found in the average overall deviations of models produced using the various 3D printer models, but all values fell within clinically acceptable limits. Conclusions The print layer height and printer model can affect the accuracy of a 3D printed orthodontic model, but the impact should be considered with respect to the clinical tolerances associated with the envisioned application. |
Databáze: | OpenAIRE |
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