Biomechanical Stability of Dental Implants in Augmented Maxillary Sites: Results of a Randomized Clinical Study with Four Different Biomaterials and PRF and a Biological View on Guided Bone Regeneration

Figure 4

Close up view of the reverted periosteum cleanly detached from the bone with Piezotome surgery during preparation for a subperiosteal tunnel procedure. The intraperiosteal vessel-net is visible and undamaged.