HANSAmed Minor Bone Augmentation

Minor Bone Augmentation

Clinical case: Minor bone augmentation performed simultaneously with implant placement four to six weeks after tooth extraction supports the long-term esthetic appearance.

Case by Prof. Daniel Buser, Berne, Switzerland

After tooth extraction without flap elevation, the alveole is carefully debrided to remove the inflammatory tissue. The extraction socket is allowed to heal for 4–8 weeks.
Following the healing period, during which soft tissue is allowed to heal, implant surgery is performed. Special attention is paid to correct prosthetic positioning of the implant in all three dimensions with good primary stability.
The crater-like defect exposing a part of the buccal implant surface is covered with locally harvested autogenous bone chips in order to promote bone re-formation in the region of the defect as quickly as possible.
The bone volume is further optimized by local augmentation using Geistlich Bio-Oss® granules. The low substitution rate of Geistlich Bio‑Oss® helps to maintain the volume of the alveolar ridge over time, a factor of great importance to the maintenance of the long-term esthetic outcome.
A collagen membrane, used as a barrier, is applied in two layers in order to improve the stability. Geistlich Bio-Gide® not only acts as a temporary barrier, but also as a place-holder and stabilizer for the augmentation material applied.
Following the release of the flap by means of mucoperiosteal incisions, a tension-free primary wound closure is achieved. Provisional implant prosthesis starts after 8 weeks.
Clinical and radiographic findings at 4-year post-operative follow-up. The peri-implant bony conditions are absolutely stable.
The clinical and radiographic post-operative follow-up at 7 ½ years shows a pleasing esthetic long-term outcome and an intact facial bone wall is shown in the Cone Beam (CT) scan.

Geistlich biomaterials help reconstruct buccal dehiscence at the time of implant placement for a stable long-term result.


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