The membrane is a physical barrier that prevents the loss of material, prevents fibroblasts from penetrating the bone defect and gives the bone cells time to regenerate. They are used in guided tissue regeneration (GTR) or guided bone regeneration (GBR).

The role of the membrane is to guarantee the volume and height of the increase: maintaining the space; and increasing the therapeutic safety: tissue integration, cellular impermeability, biocompatibility, optimizing bone regeneration, so that the aesthetic and functional conditions are fulfilled.