Reliability of digital orthodontic setups

Angle Orthod. 2016 Mar;86(2):255-9. doi: 10.2319/120914-890.1. Epub 2015 Jun 4.


Objective: To evaluate the reliability of digital orthodontic setup technology by comparing it with manual setups and models cast at the end of orthodontic treatment.

Materials and methods: Initial models, manual setups, and final models of 20 patients were used. The initial and final models, as well as the manual setups, were scanned using a 3Shape R-700 scanner, while the digital setups were fabricated based on the initial models using 3Shape OrthoAnalyzer software. Evaluation of the models based on the manual setup, digital setup, and final models of each patient was performed using the following linear measurements: intercanine widths, intermolar widths, and length of the upper and lower dental arches.

Results: The results disclosed that none of the measures assessed through the manual setup, digital setup, and final models showed statistically significant differences (P > .05).

Conclusions: Based on these findings, it can be inferred that digital setups are as effective and accurate as manual setups and constitute a tool for diagnosing and treatment planning that can be reliably reproduced in orthodontic treatments.

Keywords: Computer-assisted diagnosis; Dental models; Three-dimensional imaging.

MeSH terms

  • Dental Arch / anatomy & histology*
  • Dental Models*
  • Humans
  • Imaging, Three-Dimensional*
  • Radiographic Image Interpretation, Computer-Assisted
  • Radiography, Dental*
  • Reproducibility of Results
  • Software