Virtual bracket removal: a comparative assessment of different software packages
Heba Gamil1, Eiman Marzouk2, Abbas Zaher2
1Department of Orthodontics, Faculty of Dentistry, Alexandria University, Champollion St, P. O. Box: 21521, Azarita, Alexandria, Egypt. heba.gamil.dent@alexu.edu.eg.
BMC Oral Health
|July 9, 2024
Summary
Virtual bracket removal (VBR) software accuracy was compared. 3Shape and Meshmixer showed higher accuracy than EasyRx, though differences were clinically insignificant for orthodontic treatment.
Area of Science:
- Digital dentistry and orthodontic treatment planning.
- Computer-aided design (CAD) and virtual modeling in orthodontics.
Background:
- High-precision intra-oral scans enable virtual bracket removal (VBR) from digital models.
- VBR facilitates prompt delivery of retainers and clear aligners post-debonding, reducing appointments and preventing tooth movement.
Purpose of the Study:
- To compare the accuracy of enamel surface changes after virtual bracket removal (VBR) using three different CAD software.
- To evaluate the precision of VBR in orthodontic digital models.
Main Methods:
- Maxillary intra-oral scans from 20 participants were taken before and immediately after bracket bonding.
- Virtual bracket removal was performed using OrthoAnalyzer (3Shape), Meshmixer, and EasyRx software.
- Enamel surface changes post-VBR were quantified by superimposing pre- and post-VBR models.
Main Results:
- Significant differences in tooth surface change were observed among the three software packages.
- EasyRx demonstrated lower accuracy compared to 3Shape and Meshmixer (p<.001).
- Molars showed the lowest accuracy for VBR across all software groups.
Conclusions:
- 3Shape and Meshmixer manual VBR software were more accurate than EasyRx automated software.
- The observed differences in accuracy were minimal and clinically insignificant for orthodontic applications.
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