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Virtual setup in orthodontics: planning and evaluation.

F Baan1,2, O de Waard3, R Bruggink4,3

  • 1Radboudumc 3D Lab, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525, GA, Nijmegen, The Netherlands. frank.baan@radboudumc.nl.

Clinical Oral Investigations
|November 14, 2019
PubMed
Summary
This summary is machine-generated.

This study assessed the accuracy of virtual orthodontic setups using cone-beam CT (CBCT). Results show small translational differences but larger rotational discrepancies, offering insights into virtual setup precision.

Keywords:
CBCTOrthodonticsOrthognathic surgeryTooth movementVirtual setup

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Area of Science:

  • Dentistry
  • Orthodontics
  • Medical Imaging

Background:

  • Virtual orthodontic setups are increasingly used for treatment planning.
  • Assessing the clinical accuracy of these virtual setups is crucial for reliable outcomes.

Purpose of the Study:

  • To evaluate the clinical accuracy of virtual orthodontic setups using a novel cone-beam CT (CBCT) approach.
  • To quantify discrepancies between virtual setups and final treatment outcomes.

Main Methods:

  • Ten patients undergoing pre-surgical orthodontics were analyzed.
  • Pre-treatment and pre-surgical CBCT scans and digital dental models were utilized.
  • A CBCT-based approach with voxel-based matching and iterative closest point algorithm was employed to assess accuracy.

Main Results:

  • High inter-observer agreement was observed.
  • Small translational differences (0.45 ± 0.48 mm) were found between virtual setups and final outcomes.
  • Larger rotational differences were noted, particularly in incisor and molar pitch, with excessive extrusion and anterior movement observed in upper teeth.

Conclusions:

  • The CBCT-based approach provides valuable data on the accuracy and achievability of virtual orthodontic setups.
  • Detailed analysis of tooth movement in virtual setups can lead to improved treatment planning and new clinical insights.