Orthodontic treatment of skeletal Class III with mandibular repositioning using the GEAW technique: A case report

• Author Details:   
• Dao Quang Huy ^*

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Objective: To report the non‑surgical correction of skeletal Class III in an 11‑year‑old boy using clockwise mandibular repositioning in combination with GEAW (Gummetal Edgewise Archwire) mechanics.
Materials and Methods: Posterior bite‑raising was used to unlock the mandible and register an edge‑to‑edge incisal position for cephalometric analysis (Ricketts). Leveling/alignment were performed with nickel‑titanium archwires, followed by space regaining with coils and multiloop mechanics. Rectangular Gummetal 16×22 then 17×22 archwires delivered GEAW forces, combined with short Class III and vertical elastics to control the vertical dimension and obtain clockwise mandibular rotation.
Results: After 22 months, bilateral Class I relationships, positive overjet/normalized overbite, coordinated arches, and improved soft‑tissue profile were achieved without TMJ symptoms.
Conclusion: In growing patients with a mesofacial pattern, controlled posterior extrusion with GEAW can facilitate clockwise mandibular rotation and reduce the clinical appearance of skeletal Class III without surgery.