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Postretention assessment of deep overbite correction in Class II Division 2 malocclusion
1Department of Orthodontics College of Dentistry, Seoul National University, Korea. taewoo@plaza.snu.ac.kr
The Angle Orthodontist
|May 5, 1999
Summary
Deep overbite correction in Class II Division 2 malocclusion is stable long-term, especially with posttreatment vertical growth. Initial overbite is the key predictor of lasting results in orthodontic treatment.
Area of Science:
- Orthodontics
- Dental Research
Background:
- Class II Division 2 malocclusion often presents with deep overbite.
- Maintaining corrected overbite long-term is a significant clinical challenge.
Purpose of the Study:
- To assess the long-term stability of deep overbite correction in Class II Division 2 malocclusion.
- To identify predictors for postretention overbite in these patients.
Main Methods:
- Analysis of 62 Class II Division 2 patients with initial deep overbite.
- Longitudinal study including pre-treatment, post-treatment, and post-retention (average 15 years) cephalograms and study models.
- Statistical analysis including stepwise multiple regression.
Main Results:
- Patients with upright pretreatment incisors had deeper initial overbite and a tendency to revert.
- Posttreatment vertical growth positively influenced overbite correction stability.
- Initial overbite emerged as the most significant predictor of postretention overbite.
Conclusions:
- Deep overbite correction in Class II Division 2 malocclusion can be stable long-term.
- Initial overbite is a crucial factor influencing the stability of orthodontic treatment outcomes.
- Understanding predictors aids in managing patient expectations and treatment planning.