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Accuracy of three-dimensional, paper-based models generated using a low-cost, three-dimensional printer.

Raphael Olszewski1, Piotr Szymor2, Marcin Kozakiewicz2

  • 1Oral and Maxillofacial Surgery Research Lab IREC/CHEX/OMFS, Université Catholique de Louvain, Av. Hippocrate 55, B1.55.04, B-1200 Brussels, Belgium.

Journal of Cranio-Maxillo-Facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
|September 2, 2014
PubMed
Summary

This study validated a low-cost, paper-based 3D printer for anatomical models. The 3D printed mandible showed acceptable accuracy, comparable to other 3D printing technologies.

Keywords:
Anatomical modelsCAD–CAMCone-beam computed tomographyMaxillofacial surgerySurgical models

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Area of Science:

  • Biomedical Engineering
  • Dental Anatomy
  • 3D Printing Technology

Background:

  • Three-dimensional (3D) printing is increasingly used for creating patient-specific anatomical models.
  • Evaluating the accuracy of low-cost 3D printing methods is crucial for clinical applications.

Purpose of the Study:

  • To assess the accuracy of a paper-based, low-cost 3D printer in replicating a human mandible.
  • To compare the accuracy of this 3D printing method against established 3D printing technologies.

Main Methods:

  • A dry human mandible was scanned using cone beam computed tomography (CBCT).
  • DICOM data were processed into an STL file for 3D printing.
  • A paper-based 3D model was printed using an MCor Matrix 300 printer.
  • Seventy-six anatomical landmarks were measured on both the mandible and the 3D model using a 3D measuring arm.

Main Results:

  • The mean absolute difference between the mandible and its 3D model was 0.36 ± 0.29 mm.
  • The mean relative difference was 1.87 ± 3.14%, influenced by measurement length.
  • The accuracy of the paper-based 3D printed mandible was deemed acceptable.

Conclusions:

  • Low-cost, paper-based 3D printing offers acceptable accuracy for anatomical models like the human mandible.
  • The proposed point inaccuracy methodology can aid future 3D rapid prototyping model evaluations.
  • Further research should focus on standardized methods for comparing 3D printing accuracy across different technologies.