GBR with non-resorbable membrane

  • GBR with non-resorbable membrane
    Narrow alveolar ridge
  • GBR with non-resorbable membrane
    GBR using a bone graft and a non-resorbable membrane
  • GBR with non-resorbable membrane
    Implant insertion after regeneration
GBR is a technique used for the regeneration of lost alveolar bone by the help of a grafting material and a barrier membrane. The defect is filled with a bone graft material (allogeneic-, xenogeneic- or alloplastic bone substitute materials) that serves as a scaffold for ingrowth of bone forming cells (osteoconduction) and blood vessels, and prevents collapse of the overlying membrane and soft tissue. The membrane acts as a barrier agains ingrowth of fast proliferating connective tissue cells, hence, giving the bone forming cells time and space for the osseous regeneration of the defect. Moreover, the membrane stabilizes the bone graft material and prevents the migration of particles. In particular, for the regeneration of defects outside the ridge contour, the use of a non-resorbable, volume stable membrane is recommended.

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GBR with dPTFE membrane - Stefan Scherg
GBR mit einer dPTFE Membran - Dr. S. Scherg

PTFE membranes are the most commonly used non-resorbable membranes. The synthetic, inert nature of the dPTFE membrane allows for its longer use without any negative side effects. The dPTFE membrane maintains its structural integrity during implantation and over time. Moreover, the dPTFE material has superior space-maintaining properties and capacity for cell occlusion. Due to its small pore size, the dPTFE membrane acts as an efficient barrier against bacterial penetration, and is therefore advantageous in situations where primary closure cannot be achieved.

In particular for more demanding augmentative procedures mixing cerabone® with autologous bone or allogeneic bone chips (maxgraft® granules) is beneficial. By mixing bovine and allogeneic granules, the advantages of both materials may be combined; the biological potential of maxgraft® along with the long-term stability of cerabone® lead to fast regeneration and formation of vital, strong bone. For those who prefer to work with synthetic materials, the biphasic calcium phosphate maxresorb® offers a valid alternative.

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