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Management of overbite with the Invisalign appliance
Roozbeh Khosravi1, Bobby Cohanim1, Philippe Hujoel2
1Department of Orthodontics, School of Dentistry, University of Washington, Seattle, Wash.
The Invisalign appliance effectively manages overbite, primarily through incisor movements. This study analyzed overbite changes in 120 patients treated with clear aligners.
Area of Science:
- Orthodontics
- Dental Technology
Background:
- Limited literature exists on Invisalign overbite management, mostly case reports.
- This study addresses the gap by assessing overbite changes with Invisalign.
Purpose of the Study:
- To evaluate overbite modifications using the Invisalign appliance.
- To understand the mechanisms behind these vertical dimension changes.
Main Methods:
- Retrospective analysis of 120 adult patients treated solely with Invisalign.
- Exclusion of cases with major transverse/AP changes or extractions.
- Categorization into normal, deepbite, and open bite groups.
Main Results:
- Deepbite group showed a median 1.5 mm overbite opening.
- Open bite group exhibited a median 1.5 mm overbite deepening.
- Normal overbite group had a median 0.3 mm change; incisor movement was key.
Conclusions:
- Invisalign demonstrates effective vertical dimension management.
- Incisor repositioning is the primary mechanism for overbite correction.
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