Palatal expansion occurs when the growth plate, or suture, in the middle of the palate (upper jaw) is stretched and separated to broaden the upper jaw.
This is done using a palatal expander, made out of metal bands that fit around the upper molar teeth and a metal appliance that fits in the roof of the mouth, as seen below:
As the two halves of the upper palate are pushed apart, new bone is added to the center of the palate. This takes approximately six months to occur. The actual time of turning a palate expander varies from one to two weeks.
There are many benefits of palatal expansion. They include:
-crossbite correction
-reduce crowding
-may reduce the need for extractions
-may prevent impacted teeth
The ideal age for expansion would be in a child who has not yet hit puberty (typically from ages 8-12). Patients who have already completed puberty may not be eligible for a traditional palatal expander. Instead an expander that is supported by mini-implants called Temporary Anchorage Devices (TADs) may be an option.
How Does a Palatal Expander Work?
There is a small key that is inserted to turn the expander. Each turn slightly widens the expander and stretches the growth plate of the upper jaw. The feeling of slight pressure on the teeth and behind the nose may be experienced. It usually takes just a few days to get used to. After a few days, there may be a slight space forming between the two upper front teeth, which is normal and indicates that the expander is working.
How Do I Clean an Expander?
While the palatal expander is fixed to the first molar teeth, it cannot be removed from the mouth by the patient. The patient should brush the expander when brushing their teeth. You may utilize a small brush to remove any food that has become trapped under the expander. You may rinse or use a water-flosser after brushing as well.
Call to schedule your free consultation with Dr. Ava to determine if palatal expansion would be the best treatment option for you or your child.