Abstract
Mesio-palatal rotation of maxillary 1st molars is commonly encountered in clinical practice and this results in a Class I molar relation becoming end on. Traditionally transpalatal arches (TPA) fabricated with 0.036” stainless steel wires have been used for correction of molar rotation in fixed orthodontic treatment. They are not very efficient in correcting the mesio-palatal rotations and require frequent activations. This article describes a modified Keles TPA as an easy, effective method for rapid and precise correction of unilateral or bilateral mesio-palatal molar rotations
Highlights
Class I molar relationships may convert into an end on relation due to mesio-palatal rotation of maxillary1st molars
Modified Keles Transpalatal Arch (TPA) is placed on a piece of white paper and two lines are drawn along the terminal ends of the TPA with a pen. (Fig 3) Additional lines are drawn with a red pen, with a 20- degree angle passing through the distal end of the helix of the wire and the TPA is activated.(Active Stage) (Fig 4) It is checked on both sides (Fig 5) and inserted in the palatal sheath from the distal aspect
In many cases Class I molar relationship and an increase in arch length can be achieved by de-rotation of maxillary molars
Summary
Dr Amitabh Kallury,[1] Dr Jaina Dubey,[2] Dr Rajesh Kumar Balani,[3] Dr Chandni Bharti[4]
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