Fig. 1

The unilateral anterior large overjet (UALO) device induced Class II malocclusion characteristics in the mandible. (A) Posterior position of the condyle after bonding the UALO device. Gray line: posterior point of the condyle before bonding the UALO device; Yellow line: posterior point of the condyle after bonding the UALO device. (B) Representative lateral cephalometric radiographs of the control and UALO groups at 4 and 12 weeks post-bonding. (C) The occlusal relationship and movement distance of the mandibular most posterior molars at 4 and 12 weeks post-bonding. n = 5 per time point and group.