New perspectives in the treatment of severe mandibular atrophy: “double sandwich” osteotomy

Abstract

b o g r r a m fi the crestal periosteum, becomes the roof of the defect, and the second (lingual aspect), which remains attached to the he gold standard for treatment of advanced mandibular trophy continues to be autologous bone grafting. 1,2 Since ts description in the 1970s, the sandwich technique has een found to be reliable for the reconstruction of atrophic andibles (Cawood and Howell types IV-V). 1,3–5 Its main dvantages are the potential for three-dimensional recontruction, minimal morbidity, and stable long-term outcomes. ,3–5 However, beyond certain cranialisation of the cut fragent of bone, the vertical vector becomes mixed and the econstructed alveolar ridge may be morphologically inadeuate for the placement of implants.