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- DOI 10.18231/j.ijodr.12420.1896982026
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CrossMark
Orthodontic treatment of skeletal Class III with mandibular repositioning using the GEAW technique: A case report
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Dao Quang Huy *
Dao Quang Huy *
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.
References
- Proffit WR, Fields H, Larson B, Sarver DM. Contemporary Ortho- dontics. 6th ed. St. Louis: Elsevier; 2019. ISBN:978‑0‑323‑54387‑3. Huy / IP Indian Journal of Orthodontics and Dentofacial Research 2025;11(3):236–241 241
- Kim YH. Anterior openbite and its treatment with multiloop edgewise archwire. Angle Orthod. 1987;57(4):290–321. doi:10.1043/0003-3219(1987)057
[Google Scholar]<0290:AOAITW>2.0.CO;2. - Kim YH, Han UK, Lim DD, Serraon ML. Stability of anterior open‑bite correction with multiloop edgewise archwire therapy: A cephalometric follow‑up study. Am J Orthod Dentofacial Orthop. 2000;118(1):43–54. doi:10.1067/mod.2000.104830
[Google Scholar] - Baek SH, Shin SJ, Ahn SJ, Chang YI. Initial effect of multiloop edgewise archwire on the mandibular dentition in Class III malocclusion subjects: A three‑dimensional finite element study. Eur J Orthod. 2008;30(1):10–15. doi:10.1093/ejo/cjm098
[Google Scholar] - Tabancis M, Ratzmann A, Doberschütz P, Krey KF. Multiloop edgewise archwire technique and denture frame analysis: a systematic review. Head Face Med. 2020;16(1):32. doi:10.1186/ s13005-020-00247-x.
- Schmeidl K, Janiszewska‑Olszowska J, Grocholewicz K. Clinical features and physical properties of Gummetal orthodontic wire in comparison with dissimilar archwires: A critical review. Biomed Res Int. 2021;2021:6611979. doi:10.1155/2021/6611979
[Google Scholar] - Furuta T, Kuramoto S, Hwang J, Nishino K, Saito T. Elastic Deformation Behavior of Multi-Functional Ti–Nb–Ta–Zr–O Alloys. Mater Trans. 2005;46(12):3001–3007. doi:10.2320/ matertrans.46.3001.
- Ricketts RM. Cephalometric analysis and synthesis. Angle Orthod. 1961;31(3):141–156. doi:10.1043/0003-3219(1961)031
[Google Scholar]<0141:CA AS>2.0.CO;2. - Yang Z, Ding Y, Feng X. Developing skeletal Class III malocclusion treated nonsurgically with a combination of protraction facemask and multiloop edgewise archwire. Am J Orthod Dentofacial Orthop. 2011;140(2):245–255. doi:10.1016/j.ajodo.2009.10.047
[Google Scholar] - Marañón‑Vásquez GA, Soldevilla Galarza LC, Tolentino Solis FA, Wilson C, Romano FL. Aesthetic and functional outcomes using a multiloop edgewise archwire for camouflage orthodontic treatment of a severe Class III open bite malocclusion. J Orthod. 2017;44(3):199–208. doi:10.1080/14653125.2017.1353789
[Google Scholar] - Masoud AI, Tsay TP. Multiloop edgewise archwire treatment for a patient with a severe anterior open bite and amelogenesis imperfecta. Angle Orthod. 2022;92(1):137–147. doi:10.2319/032221-228.1
[Google Scholar] - Kuc AE, Kotuła J, Nawrocki J, Dobrzyński M, Wiglusz RJ., Watras A. et al. Properties and application of the gummetal wire for the treatment of an open bite—brief narrative review and case report. Appl Sci. 2024;14(7):2991. doi:10.3390/app14072991
[Google Scholar] - Ribeiro GLU, Regis S Jr, da Cunha Tde M, Sabatoski MA, Guariza‑Filho O, Tanaka OM. Multiloop edgewise archwire in the treatment of a patient with an anterior open bite and a long face. Am J Orthod Dentofacial Orthop. 2010;138(1):89–95. doi:10.1016/j.ajodo.2008.03.036
[Google Scholar] - Ahn HW, Chung KR, Kang SM, Lin L, Nelson G, Kim SH. Correction of dental Class III with posterior open bite by simple biomechanics using an anterior C-tube miniplate. Korean J Orthod. 2012;42(5):270–280. doi:10.4041/kjod.2012.42.5.270
[Google Scholar] - Kopsahilis IE, Drescher D. Friction behavior of the wire material Gummetal®. J Orofac Orthop. 2022;83(1):59–72. doi:10.1007/ s00056-021-00317-y.
- Greenlee GM, Huang GJ, Chen SS, Chen J, Koepsell T, Hujoel P. Stability of treatment for anterior open-bite malocclusion: A meta-analysis. Am J Orthod Dentofacial Orthop. 2011;139(2): 154–69. doi:10.1016/j.ajodo.2010.10.019
[Google Scholar]