How to turn an Expander

Detailed instructions on how to turn both an upper and lower expander.

[rachelstein]

This was the only video on YouTube that actually helped me understand how to use this weird key to turn the expander! It was baffling, and you demonstrated it so well. Thanks!

[adrianvilchis]

my daghter just got hers but the doctor told me to use the oposit hole . is she wrong?

[denisbaeza]

Funciona en adultos sabido que se usa más en niños

[denisbaeza]

Una pregunta yo traigo espansor pero la flechita está hacia adelante como le tengo que poner la llabesita