Palatal expander


What is a palatal expander?

A palatal expander is an appliance that is attached to the upper molars through bonding or bands. The palatal expander is used to widen the upper jaw. It is typically used when the upper jaw is too narrow or the upper teeth are crowded. Activating the expander creates gradual outward pressure to cause an increased amount of bone to grow between the right and left halves of the jaw, resulting in increased width.