Biomechanical and clinical considerations for the correction of Class II anterior open bite

Anterior open bite (AOB) with mild-to-moderate skeletal discrepancies can be camouflaged by an orthodontic tooth movement. Conventional methods can improve occlusal relationships and some profile esthetics, but their mechanics may result in detrimental side effects such as a gummy smile, a high-freq...

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Bibliographic Details
Published in:Seminars in orthodontics 2024-12, Vol.30 (5), p.502-513
Main Authors: Heo, Sungsu, Park, Jae Hyun, Jung, Seung Pil, Choi, Sung-Kwon, Kim, Jae-Soo, Chae, Jong-Moon
Format: Article
Language:English
Subjects:
Anterior open bite
Center of resistance
Finite element study
Skeletal Class II malocclusion
Temporary skeletal anchorage devices
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Summary:Anterior open bite (AOB) with mild-to-moderate skeletal discrepancies can be camouflaged by an orthodontic tooth movement. Conventional methods can improve occlusal relationships and some profile esthetics, but their mechanics may result in detrimental side effects such as a gummy smile, a high-frequency relapse, and an unfavorable facial profile. The emergence of temporary skeletal anchorage devices (TSADs) has facilitated the treatment of skeletal Class II AOB through intrusion of the posterior teeth and autorotation of the mandible, improving facial esthetics while minimizing the side effects. TSADs can also simplify treatment plans and offer a more predictable treatment result. Finite element studies have identified the location of the center of resistance of the dentition, providing a biomechanical basis for understanding 3-dimensional tooth movement patterns using TSADs. Therefore, biomechanical and clinical considerations are essential for correcting Class II AOB using TSADs.
ISSN:1073-8746
DOI:10.1053/j.sodo.2024.02.003