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International Dental Journal of Student Research

“Keles transpalatal arch for molar derotation”- Clinical discussion

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Author Details: Devaki Vijayalakshmi, Saloni Garg, Ratna Parameswaran, Srinivasan Boovaraghavan

Volume : 5

Issue : 4

Online ISSN : 2278-3784

Print ISSN : 2394-708X

Article First Page : 109

Article End Page : 112


Aim: The aim of the article is to describe the effect of Keles Trans Palatal Arch (TPA) on unilateral and bilateral molar rotation illustrated with two case reports.
Method: Unilateral and bilateral maxillary first permanent molars de-rotation were performed in two cases using Keles appliance system which consists of the precision lingual hinge cap and TPA made of TMA wire. (0.032 × 0.032") (Ormco, Orange, CA). A 20 degree activation is given to the rotating part/terminal end(s) of the TPA every fourth week until rotation is completely corrected. The de-rotation achieved and change in the intermolar width are assessed using digital cast analysis performed by Ilexis FACAD (AB-2014 version 3.8.00) software and by comparing the pre and post maxillary occlusal radiographs with marker wires.
Result: Pre and post values showed that the de-rotation is achieved in both cases. Inter-molar width showed no significant changes in both cases, suggestive of minimal/no expansion.
Conclusion: The Keles TPA resulted in better transverse molar control during molar de-rotation owing to its superior precision self-locking design. When Keles TPA is used in correction of unilateral molar rotation, it causes successful de-rotation on the affected side and minimum or no changes on the unaffected side

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