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International Journal of Implant Dentistry
Fig. 4 | International Journal of Implant Dentistry

Fig. 4

From: The allogeneic shell technique for alveolar ridge augmentation: a multicenter case series and experiences of more than 300 cases

Fig. 4

Alveolar ridge augmentation of the anterior maxilla. A Initial intraoperative situation with an extended alveolar defect of the anterior alveolar jaw. Two allogeneic cortical bone plates were fixed by fixation screws. B Intraoperative situation after filling the defect with allogeneic spongious granules. C Covering the augmented area with a porcine collagen membrane. D Implant placement 4 months later. E Overlining with xenogeneic bone graft to preserve the volume of the augmented area. F X-ray demonstrating inserted implants

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