Guided Bone Regeneration in Immediate Dental Implants - Review

The need for bone grafting and the use of a barrier after immediate implant placement depend on the thickness of the labial plate and the size of the gap between the implant and the adjacent alveolar bone. A variety of regenerative techniques using combinations of bone grafts and barrier membranes have been suggested promoting bone regeneration in localized defects at implants placed into extraction sockets. GBR is the most frequently used technique for bone regeneration in conjunction with or prior to implant placement. The principal idea of GBR is the use of membranes to exclude epithelial cells with a high turnover and to allow the migration of the desired cells (particularly osteoblasts) in the established wound space.