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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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Unplanned tooth movement in deepbite correction with Invisalign: A retrospective study
1Assistant Professor, Department of Orthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt; Assistant Professor of Orthodontics, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates.
Journal of the World Federation of Orthodontists
|February 24, 2024
Summary
Unplanned tooth movements are common during Invisalign deep bite correction, especially in molars. Vertical movements require careful attention for predictable outcomes.
Area of Science:
- Orthodontics
- Dental Biomaterials
- Biotechnology
Background:
- Deep bite malocclusion presents challenges in orthodontic treatment.
- Predicting and controlling tooth movement is crucial for successful outcomes.
Purpose of the Study:
- To investigate unplanned tooth movements during Invisalign treatment for deep bite correction.
- To analyze the frequency, magnitude, and direction of these movements.
- To compare unplanned movements between anterior and posterior teeth and between linear and angular changes.
Main Methods:
- Analysis of digital models from 34 adult patients with deep bite treated with Invisalign.
- Superimposition of pretreatment, predicted, and post-treatment digital models.
- Quantification of linear and angular unplanned tooth movements.
Main Results:
- Unplanned movements occurred in most teeth, particularly in molars.
- Posterior teeth exhibited significantly more unplanned movements than anterior teeth.
- Angular movements were more frequent and had a higher mean value than linear movements.
Conclusions:
- Unplanned linear and angular tooth movements are frequent in Invisalign deep bite correction.
- Faciolingual inclination and mesiodistal angulation are common unplanned movements.
- Unplanned vertical movements can impact treatment predictability and require specific attention.
