Orthodontic miniscrews have revolutionized the approach to correcting anterior open-bites since their introduction into the field. They offer a dependable, non-surgical solution, utilizing their high stability as anchorage for intrusive forces. Moreover, non-surgical orthodontic correction for anterior open-bites have produced results comparable to those of orthognathic surgery, both in functionality and stability.
Molar intrusion, faciliated by these miniscrews, can lead to a counterclockwise rotation of the mandible. This rotation would decrease the vertical dimension of the face and move the mandible forward. Predicting this mandibular rotation accurately is crucial for precise diagnosis, efficient treatment planning, and reliable outcomes. Nonetheless, variations in mandibular rotation are common, with differences observed in both the degree and direction of rotation, even when the intrusive movements are identical.
This presentation will showcase the non-surgical correction of borderline cases, emphasizing the assessment of mandibular rotation. The ultimate goal is to provide clinicians with the knowledge necessary to secure consistent and reliable treatment results.
Learning Objectives:
After this session, attendees will be able to:
Understand the reliability of molar intrusion for correction of anterior open-bite using orthodontic miniscrews and its comparability to orthognathic surgery outcomes.
Predict mandibular rotation after intrusive movement of posterior teeth.
Identify variations in the degree and direction of mandibular rotation.
