Rapid Palatal Expander

Attached to the upper molars through bonding or by cemented bands, the Rapid Palatal Expander is an orthodontic device used to create a wider space in the upper jaw. It is typically used when the upper jaw is too narrow for the lower jaw or when the upper teeth are crowded or blocked out of the dental arch.

When patients are still growing, their connective tissue between the left and right halves of their upper jaw is very responsive to expansion. By simply activating the expander through turning a screw in the center, with a special key we provide, gradual outward pressure is placed on the left and right halves of the upper jaw. This pressure causes an increased amount of bone to grow between the right and left halves of the jaw, ultimately resulting in an increased width.

Using the Palatal Expander

  1. You will need the key that you were given with the appliance.
  2. Have the patient lean their head back in a well-lit area so that you can see the appliance on the roof of the mouth. You should clearly see a hole in the center of the appliance, facing the front teeth.
  3. Place the key into the front-facing hole and push the key back towards the back of the mouth. The fender should rotate and another hole should slowly become visible.
  4. Stop pushing the key when it touches the back of the expander. The next hole should now be completely visible and facing the front teeth.
  5. Remove the key carefully, ensuring the next hole is still visible when the key is removed.

Lively Orthodontics

  • Lively Orthodontics - 106 Colorado Ave., Stuart, FL 34994 Phone: 772-287-3999 Fax: 772-287-7081

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