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Fig. 1 | Head & Face Medicine

Fig. 1

From: Quality of occlusal outcome following space closure in cases of lower second premolar aplasia using lingual orthodontic molar mesialization without maxillary counterbalancing extraction

Fig. 1

Presentation of a case: Initial situation prior to bonding of the fixed lingual appliance at T0 (a, b, c); Figs. A and B were taken following pre-treatment with removable functional appliances, hence the mandible is seen in a protruded sagittal position. Following leveling and aligning and initiation of anchorage reinforcement by adding Herbst telescopes at T2 (d, e, f), and at T3 following de-bonding of the fixed lingual appliance. Posterior maxillary 6–7 retainers aid in maintaining the vertical relation until lower third molars are brought into occlusal contact, while mandibular 4–6 retainers prevent re-opening of aplasia spaces (g, h, i). Panoramic x-rays show an adequate root parallelism after completion of aplasia space closure (j, k)

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