Bone Substitutes in Le Fort I Osteotomy to Promote Bone Union and Skeletal Stability

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Maxillary advancement by Le Fort I osteotomy has become the standard procedure to restore function and facial esthetics, correct skeletal and occlusal discrepancies, and treat obstructive sleep apnea in patients with facial deformities. Incomplete ossification between the bone segments at the jaw osteotomy site has proven to be a major problem in these patients. There are several studies in the literature that address orthognathic surgery, but only a limited number that discuss the use of graft materials in maxillary osteotomy. Bone grafts were introduced in recent decades in order to promote and improve bone union and prevent the formation of gaps. This study will discuss the results obtained using bone substitutes in orthognathic surgery for maxillary advancement and maxillary repositioning with Le Fort I osteotomy, in a clinical report and a literature review, covering the main indications and specifying the type of material used and the stability of the surgical procedure postoperatively.

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