How Long Does Palatal Expansion Take?

Rapid Palatal Expander

A rapid palatal expander minneapolis (RPE) is a customized appliance which is used to widen the two halves of the top jaw, which are also called the palate or maxilla. The two halves of the jaw are connected in the center of the roof of the mouth. The RPE device is attached to the upper back teeth and gradually moves the jaw making it wider. As the jaw slowly expands, new bone fills into the space between the two halves.

When a Palatal Expander is Needed

A palatal expander has a variety of benefits. It can help widen the upper arch which allows the upper teeth to align better with the lower teeth and creates a better bite. In addition, widening the palate can make room for crowded teeth. This can often prevent the need to extract permanent teeth. A high palate and narrow arch can result in a restriction of the breathing passages. Expanders can also help create a broader and more attractive smile. Expansion is ideal and results are most successful when the procedure is performed on a child or teenager.

How to Turn or Activate an Expander

Activation of the expander is typically completed by a parent, guardian, or someone besides the patient. The same day the expander is placed, the dentist will provide you with a key that inserts into an opening of the RPE.

How Long is a Rapid Palatal Expander Used?

Expanding the palate is usually complete within three to six weeks. The appliance will remain in the mouth for a longer period of time. The appliance typically remains in the mouth for 5-6 months which allows the newly formed bone to mature. Removing the RPE too soon can compromise the modifications. During expansion process, a space can develop between the top two front teeth. This is normal and once you stop turning the RPE, the teeth will come together again.

Palatal Expander Pain

The palatal expander doesn’t usually hurt. When the expander is turned, patients may feel pressure in the teeth. They may also be a tingling sensation around the bridge of the nose or under your eyes. The sensation typically lasts for a few minutes and then dissipates. We usually recommend completing one turn in the morning and one turn in the evening to avoid discomfort.

Possible Problems with Expanders

The two most common problems that patients experience with an RPE are trapped food between the expander and the roof of the mouth and difficulty making the initial turn. When the expander is initially placed, we will teach you how to properly clean it. If food gets stuck in the device, you can swish or gargle with water. You can also use a cotton swab and gently wipe the palate of the mouth.

The other possible problem which can arise is failing to make a complete turn. Patients sometimes think they made a complete turn and remove the key. It can appear that the turn was successfully completed, however when you attempt to make another turn, the key won’t fit in the new hole. In order to resolve, you have to return to the previous hole in the back of the mouth, insert the key and complete the turn.

More on Palatal Expansion : When is Palatal Expansion Needed?