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  • Title: Le Fort I osteotomy, bilateral sinus lift, and inlay bone-grafting for reconstruction in the severely atrophic maxilla: a new vision of the sandwich technique, using bone scrapers and piezosurgery.
    Author: Muñoz-Guerra MF, Naval-Gías L, Capote-Moreno A.
    Journal: J Oral Maxillofac Surg; 2009 Mar; 67(3):613-8. PubMed ID: 19231789.
    Abstract:
    Severe atrophy of the edentulous maxilla and progressive pneumatisation of the maxillary sinus can compromise the insertion of dental implants. In this context, ideal implant positioning is limited by inadequate height, width, and quality of the bone. Le Fort I osteotomy and interpositional bone graft is an excellent treatment concept for the dental rehabilitation of patients with atrophied maxilla and reversed intermaxillary relationship. In this report, we indicate the transcendent aspect of elevation and preservation of maxillary sinus and nasal mucosa, modifying the sandwich technique by the useful of bone scrapers and piezosurgery. The procedure is described including a 1-stage approach using cortico-cancellous bone blocks through which implants are placed. In the extremely atrophied alveolar process of the maxilla, this technique provides the desired gain of bone, allows for the ideal placement of dental implants, and improves any discrepancy between the upper and lower arches.
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