What is a Palatal Expander??

Question

What does it do?? What is it for?? How does it work??

Answer 1

A metal bar across the roof of your mouth that makes your mouth wider. My friend has one, and he said when you turn the key, sometimes you hear a cracking sound, but it doesnt hurt, it just makes your nose feel weird.

Answer 2

this is a metal bar that goes across the roof of your mouth. It is held in place by two brackets on your back teeth.For the first 15-30 days you have to place a little key in the expander and turn it. The expander makes the roof of your mouth wider. The expander is usually kept in place for about 1 year.