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The Factors Affecting Long-Term Stability in Anterior Open-Bite Correction - A Systematic Review
Yousef Al-Thomali1, Sakeenabi Basha2, Roshan Noor Mohamed3
1Division of Orthodontics, Department of Preventive Dental Sciences, Taif University School of Dentistry, Taif, Saudi Arabia.
Turkish Journal of Orthodontics
|August 17, 2018
Summary
Orthognathic surgery significantly improves long-term stability for anterior open-bite (AOB) correction. Malocclusion type and extraction choices did not impact AOB correction stability.
Area of Science:
- Orthodontics and Dentofacial Orthopedics
- Surgical Orthodontics
- Dental Stability Research
Background:
- Anterior open-bite (AOB) presents a complex orthodontic challenge.
- Long-term stability of AOB correction is crucial for successful treatment outcomes.
- Understanding factors influencing AOB relapse is essential for clinical practice.
Purpose of the Study:
- To quantitatively assess the long-term stability of anterior open-bite correction.
- To evaluate the impact of orthognathic surgery versus non-surgical approaches.
- To determine the influence of malocclusion type and extraction treatment on AOB stability.
Main Methods:
- Systematic review of 14 retrospective studies.
- Comprehensive literature search across multiple databases (MEDLINE, CINAHL, EMBASE, Scopus, PsychINFO).
- Quality assessment of included studies using the Quality Assessment Tool for Quantitative Studies.
Main Results:
- Long-term anterior open-bite (AOB) correction stability ranged from 61.9% to 100%.
- Orthognathic surgery cases demonstrated higher stability (70-100%) compared to non-surgical cases (61.9-96.7%).
- No significant differences in stability were found based on malocclusion type or extraction/non-extraction treatment protocols.
Conclusions:
- Orthognathic surgery is associated with robust long-term stability in anterior open-bite correction.
- Treatment modality (surgery vs. non-surgery) is a key factor in AOB stability.
- Malocclusion characteristics and extraction decisions appear to have minimal impact on long-term AOB correction stability.
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