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Author Spotlight: 3D Movement Assessment of Maxillary Posterior Teeth in Clear Aligner Treatment
Published on: February 23, 2024
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Predictability of Maxillary Molar Distalization and Derotation with Clear Aligners: A Prospective Study
Vincenzo D'Antò1, Rosa Valletta1, Roberto Ferretti1
1School of Orthodontics, Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Via Pansini, 5, 80131 Naples, Italy.
International Journal of Environmental Research and Public Health
|February 25, 2023
Summary
Clear aligners show moderate accuracy in distalizing and derotating upper molars for Class II malocclusions. Refinements are often necessary, but aligners remain a viable treatment option.
Area of Science:
- Orthodontics
- Biomaterials Science
- Dental Technology
Background:
- Clear aligners are increasingly used for Class II malocclusions.
- Distalization and derotation of upper molars are key treatment components.
- Predictability of these clear aligner movements requires further investigation.
Purpose of the Study:
- To assess the accuracy of clear aligner treatment for molar distalization and derotation.
- To compare planned versus achieved tooth movements in Class II malocclusions.
Main Methods:
- Utilized Geomagic Control X software for 3D model superimposition.
- Analyzed pre-treatment, post-treatment, and virtual plan models of 16 patients.
- Measured linear and angular tooth movements for accuracy assessment.
Main Results:
- Distalization accuracy: 69% for first molars, 75% for second molars.
- Derotation accuracy: 77.5% for first molars, 62.7% for second molars.
- Achieved results differed from the ideal post-treatment plan, necessitating refinements.
Conclusions:
- Clear aligners demonstrate value in distalizing upper first and second molars.
- Treatment outcomes may require planned refinements for optimal results.
- Clear aligner therapy is a practical option for specific molar movements in orthodontics.
