Abstract :
Background: In individuals with Class II malocclusions, there is an anteroposterior discrepancy between the maxillary and mandibular dentitions, which may or may not be accompanied with a skeletal discrepancy, the most effective treatment option to eliminate is by modified three-piece base arch combined with TADS for simultaneous deep bite correction and en masse retraction.
Aim: The present case report showcases the treatment results and biomechanics involved for en masse retraction and intrusion of anterior teeth using three-piece intrusion arch and temporary anchorage device.
Conclusion: The modified three-piece base arch combined with TADS is effective in controlled translation and intrusion of anteriors and would be a preferable mechanotherapy in low angle case with deep bite, proclined anteriors and Class II malocclusion.
Keyword :
Class II malocclusion, Three- piece intrusion arch, TADS.