Bonded Palatal Expander

This expander uses the same type of screw as the Standard RPE, but is bonded to the posterior teeth with an acrylic shell rather than soldered to bands. Some clinicians prefer this design because they feel the acrylic shell distributes the lateral force of the screw more evenly across the posterior teeth. The shell acts as a posterior bite plate which unlocks the patient’s occlusion allowing the screw to work with less resistance.