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International Dental Journal of Students Research
Year : 2017, Volume : 5, Issue : 3
First page : ( 109) Last page : ( 112)
Print ISSN : 2394-708X. Online ISSN : 2278-3784.
Article DOI : 10.18231/2278-3784.2017.0004

“Keles transpalatal arch for molar derotation”- Clinical discussion

Vijayalakshmi Devaki1, Garg Saloni2,*, Parameswaran Ratna1, Boovaraghavan Srinivasan1

1M.D.S, Dept. of Orthodontics, Meenakshi Ammal Dental College and Hospital, Alapakkam Main Road, Maduravoyal, Chennai, India

2B.D.S, Dept. of Orthodontics, Meenakshi Ammal Dental College and Hospital, Alapakkam Main Road, Maduravoyal, Chennai, India

*Corresponding Author: Email: garg.saloni5@gmail.com

Online published on 11 April, 2018.

Abstract

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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