Abstract
ABSTRACT Correction of severe vertical bone deficiency in the posterior region of mandibular alveolar ridge requires surgical management if implants are scheduled and cannot have primary stability. The aim of the present study is to report two cases; one treated with alveolar osteogenesis distraction and the other with segmental osteotomy with autologous graft interposition, by describing the surgical steps as well as show the results and experiences acquired with these techniques. We opted for these methods to reconstruct the posterior mandibular region after remarkable vertical bone loss based mainly by the height and thickness of the remaining bone. Alveolar osteogenic distraction is highly advisable when vertical deficiency is severe, and if these cases are treated with the segmental osteotomy and autologous graft interposition, complications as graft failure, necrosis and resorption are more prone to occur due to insufficient vascularization. After bone maturation and bone neoformation secondary to alveolar osteogenic osteogenic distraction and segmental osteotomy with autologous graft interposition, respectively, the two presented case reports were able to securely receive dental implants. In cases of vertical bone loss of the posterior mandibular region, both surgeries currently represent the best choice for bone gain prior dental implants placement for oral rehabilitation, without technical challenges, although biological evidence to assure the superiority of one technique over the other must be further investigated.
Highlights
Correction of severe vertical bone deficiency in the posterior region of mandibular alveolar ridge requires surgical management if implants are scheduled and cannot have primary stability without bone augmentation
The phenomenon of the alveolar osteogenic distraction consists of an application of a continuous slow and low-intensity traction in an opposite movement between the osteotomized alveolar ridge and the basal bone, exactly at the moment that this gap is filled with collagenous fibers, leading to a careful and delicate stretch of this premature tissue[5,6]
The purpose of the present study report two cases, one treated with osteogenic distraction (OD) and the other with segmental osteotomy SO with autologous graft interposition, by describing the surgical steps as well as show the results and experiences acquired with these techniques
Summary
Correction of severe vertical bone deficiency in the posterior region of mandibular alveolar ridge requires surgical management if implants are scheduled and cannot have primary stability without bone augmentation. 333-337, jul./set., 2016 between the alveolar ridge and the mandibular canal that preclude dental implants insertion[1]. When these scenarios occur, their correction include, among other techniques, alveolar osteogenic distraction (OD) and alveolar segmental osteotomy (SO) with placement of an inlay bone graft autologous. Their correction include, among other techniques, alveolar osteogenic distraction (OD) and alveolar segmental osteotomy (SO) with placement of an inlay bone graft autologous Both therapies demonstrate better clinical results when compared with other techniques[2,3,4]. The purpose of the present study report two cases, one treated with OD and the other with segmental osteotomy SO with autologous graft interposition, by describing the surgical steps as well as show the results and experiences acquired with these techniques
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