Transpalatine arches are very versatile appliances, because they can be used in a wide range of applications while they are used as moderate anchorage during space closure in orthodontic treatment. The transpalatine arch is made with 0.036" stainless steel wire and consists of a palatal arch, with a central omega, that is connected to the bands of both upper first molars.
A very common situation that we can encounter during the occlusal analysis of a patient is to find molars
that are in a buccal position or in a cross bite, which in occasions is product of a dentoalveolar compensation caused
by a transversal narrowing of the maxilla, pronouncing even more the Wilson curve. The course of action in these cases is to flatten this curve; this can be done applying torque on the solder point of the bands with the transpalatal arch to correct, the buccal position of the tooth or the cross bite, depending on the position of the tooth.
On the other hand, these arches can be activated to establish and maintain the width of the arches, prevent
molar rotations, correct mesiodistal asymmetries, correct asymmetric and symmetric cross bites and to correct third
order axial inclinations.