Effect of absorbable membranes on sandwich bone augmentation

Abstract

Within the limit of this study, it is concluded that SBA technique achieved predictable clinical outcomes. The addition of absorbable membranes enhanced bone gain in thickness compared with membrane-treated sites.

Vertical Ridge Augmentation of the Atrophic Posterior Mandible with Sandwich Technique: Bone Block from the Chin Area versus Corticocancellous Bone Block Allograft—Clinical and Histological Prospective Randomized Controlled Study

“…Indeed, the displacement of the alveolar nerve is technically tough, and this procedure may be associated with certain degree of permanent loss of nerve sensitivity [1, 6–9]. Different surgical techniques are currently being used to augment the posterior mandible: guided bone regeneration (GBR) and alveolar distraction osteogenesis onlay bone grafting; however, only few of these have been tested in randomized clinical trial (RCT) [10, 11]. Several surgical bone augmentation techniques are related to an unpredictable resorption of the grafted material.…”

“…Another possible approach is to use an interpositional bone graft [1, 4, 8, 11]. The rationale of the interpositional techniques is based on the theory that biomaterial placed between 2 pieces of pedicled bone with internal cancellous bone will undergo rapid and complete healing and graft incorporation with a lower percentage of resorption.…”

Simultaneous Block Bone Grafting Using “L-Shaped Notch” Preparation in Mandible

“…7 It has been shown in clinical studies that a predictable result with GBR requires certain conditions, such as wound stabilization, and space creation and maintenance. 8 Benic et al 9 reported that 5 out of 14 implants at sites in which GBR had been applied had no buccal bone on radiography at a 7-year follow-up. Thus, it appears that membrane stability and space creation are difficult to achieve in cases of extensive alveolar resorption.…”

Synergistic Effects of Growth Factor, Bone Graft, and Resorbable Barrier Membrane in Management of Dehiscence and Fenestration of Dental Implants

“…For the control group, percentage bone fill was only 54.64 ± 37.23%; on the contrary, dissimilar results were also noticed without the use of growth factor. 7,28 Overall significant reduction was observed in test groups from baseline to 5 months but was nonsignificant for the control group. This emphasizes the fact that external application of PDGF-BB did stimulate bone regeneration and this has been witnessed as early as 7 days following implant placement in histologic studies of Lynch et al 3 Along with that, it has a crucial role in healing 29 and attracting fibroblasts into the clot.…”

“…Full-thickness flap was reflected using a mid-crestal and vertical incisions, 7 and care was taken to avoid unnecessary trauma to the gingiva of the adjacent teeth. The site was prepared using successive drills; the socket was flushed with sterile normal saline, following which the implant was screwed into the bone with the hex ratchet using insertion torque of 30 to 35 N/cm 2 until the implant was seen flushed with the alveolar bone.…”