By Dr. Shaun Weng
Published June 2026
10 min read
Clinical Summary
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Content
Open bite cases an be dental, skeletal or both.
Treatment can either include habit correction, extrude/retract anterior teeth, intrude posterior teeth or surgery
Advent of TAD’s in combination with aligners allow for intrusion of the molars that can result in a forward and upward movement from mandibular autorotation.
Molar intrusion by aligners is mainly due to the “bite-block effect” caused by two layers of aligner material between teeth.
Author utilised a combination of incisor extrusion (pure and relative), molar intrusion and consequent counterclockwise rotation of the jaw to help close the anterior open bite.
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