Open bite malocclusion is one of the most challenging conditions to diagnose and treat in orthodontics due to its multifactorial etiology, which often includes skeletal discrepancies, unfavorable growth patterns, tongue habits, and airway issues. From a scientific and biomechanical perspective, open bite malocclusions are considered among the most suitable indications for aligner therapy. The full-coverage design of aligners acts as a bite block, facilitating posterior intrusion while minimizing unwanted extrusion, thus promoting a favorable counterclockwise mandibular rotation and anterior bite closure. This vertical control, combined with staged movements and optimized attachments, provides significant advantages over traditional fixed appliances, particularly in achieving stable and predictable outcomes. This lecture will explore the principles, biomechanics, and clinical strategies for managing anterior open bite with aligners. Participants will gain insights into proper diagnosis, treatment planning, and digital staging to ensure predictable results. Clinical case studies will illustrate a range of open bite scenarios—from mild dental open bites to moderate skeletal cases—highlighting success factors and common pitfalls. Long-term stability and retention will also be addressed, given the high relapse tendency of open bite malocclusions. By the end of this session, attendees will understand how to identify ideal candidates for aligner therapy, leverage biomechanical advantages such as the bite block effect, and design efficient treatment protocols.


Learning Objectives
After this lecture, you will be able to identify the etiological factors and clinical characteristics of open bite malocclusions to select ideal candidates for aligner therapy.
After this lecture, you will be able to explain the biomechanical advantages of aligners, including the bite block effect and vertical control, for predictable open bite correction.
After this lecture, you will be able to design effective, evidence-based treatment plans and retention protocols to achieve stable and aesthetic outcomes in open bite cases.