Distrattore palatale rigido

The palatal distraction device (PDD) that we have created represents a significant advance in treatment. This PDD is a bone-borne appliance that directs the forces mainly to the palatal shelves close to the center of resistance of the maxillary bone without tooth movement; it also leaves all of the crowns clear for orthodontic access. PDD is composed of one titanium expansion screw welded with two titanium miniplates and fixed to the palatal shelves by 4 titanium miniscrews.Osteodistraction has been proven to ensure new bone formation at the osteotomy site without fibrous scarring in the maxillofacial skeleton