Conventional orthpedic treatment for children with skeletal discrepancies has largely lead to unfavorable soft tissue profile, such as lip protrusion, lip incompetency and/or unattractive chin position. The question is whether major change in the profile can be attained during the second phase of treatment. We propose an extra-alveolar total arch movement including major remodeling in the lingual cortical plate, mandibular symphysis to reverse unwanted growth occured during Phase I treatment. For most ‘borderline’ cases between extraction and nonextraction, and between surgery and nonsurgery cases, may benefit from the precise four-dimensional total arch movement. A ‘beyond-the-border’ type tooth movement will also be introduced to advocate redirection of the jawbone growth.
Learning Objectives:
After this session, attendees will be able to:
Identify the insertion sites for precise total arch intrusion in growers.
Understand how growth direction can be reversed during the Phase II treament and the biomechanics of four-dimensional total arch movement.
Improve soft tissue profiles via extra-alveolar total arch movement.
