There are two ways to fix a posterior cross bite in children in this case:
Using a removable device with a screw: Most of these devices depend on the cooperation of the patient and move easily inside the mouth, and if the patient does not cooperate, they will not work.
Adjustable Lingual: This type of device is the preferred device among preadolescent children and is available in two forms:
A : w-arch
This device has the following specifications:
Made of 36 mil steel wire.
It is possible to perform lateral stretching selectively in the back or front.
If opened 4-5 mm relative to their inactive state, they create an appropriate force.
The device is 1 to 1.5 mm away from the soft tissues of the palate, gingiva and gums and continues a maximum of 1 to 2 mm into the distal region of the molar.
B: – quad-helix
