Posterior maxillary vertical GBR
Vertical Bone Regeneration After Implant Loss in the Posterior Maxilla
A demanding posterior maxillary vertical GBR case managed after implant loss from peri-implantitis, using a titanium-reinforced dense PTFE membrane and mixed autogenous/xenograft grafting to rebuild the implant foundation.
Clinical concern
Recovery context
Digital planning and surgical proof
Defect-driven diagnosis
The case began with analysis of a severe vertical ridge defect after implant loss, focusing on how much bone needed to be rebuilt for future implant rehabilitation.
Regenerative design
A titanium-reinforced dense PTFE membrane was selected to support space maintenance, combined with a 70/30 mixture of autogenous bone and xenograft to build the new foundation.
Soft tissue stability
Careful soft tissue management and tension-free primary closure were treated as decisive steps to protect graft stability throughout the healing phase.
Materials, guides and technique context
Implant system
Implant selection is considered after regeneration has matured and depends on the regenerated foundation and restorative objective.
Biomaterials
Titanium-reinforced dense PTFE membrane with a 70/30 mixture of autogenous bone and xenograft.
Surgical guide
A digital guide may be considered later for implant placement once the regenerated volume and access conditions are confirmed.
Technique
Vertical GBR in the posterior maxilla with titanium-reinforced membrane support, mixed grafting and tension-free primary closure.
Two-specialist planning value
Severe vertical regenerative cases benefit from dual specialist review of defect anatomy, graft stability, flap design, soft tissue closure and re-entry timing.
What the patient can understand before surgery
The patient can understand why a new implant is not placed immediately after implant loss.
The regenerative goal is explained as rebuilding enough vertical bone for a safer future implant position.
Healing time, closure stability and staged re-entry are clarified before surgery begins.
Diagnosis and treatment sequence
Problem
Severe vertical bone loss in the posterior maxilla after implant loss caused by advanced peri-implantitis left an inadequate foundation for new implant placement.
Diagnosis
A severe posterior maxillary vertical defect following implant failure and advanced peri-implantitis, with insufficient bone volume and compromised conditions for predictable implant rehabilitation.
Planning
The defect morphology, implant-reconstruction objective, membrane stability and soft tissue closure were evaluated before surgery. Because vertical GBR is biologically demanding, graft stability and tension-free primary closure were treated as critical planning priorities.
Treatment
Vertical bone regeneration was performed using a titanium-reinforced dense PTFE membrane combined with a 70/30 mixture of autogenous bone and xenograft, followed by protected healing before new implant planning.
Outcome
Re-entry after 8 months revealed remarkable vertical bone gain in both volume and quality, allowing new implants to be planned under significantly improved conditions.
Key clinical points
Severe vertical defect after implant loss
Posterior maxillary reconstruction
Titanium-reinforced dense PTFE membrane
70/30 autogenous bone and xenograft mixture
Tension-free primary closure was essential
8-month re-entry confirmed substantial vertical gain
Important note
Individual results vary. Vertical GBR is biologically demanding and depends on defect anatomy, soft tissue closure, graft stability, healing response and maintenance control.
This case is shown for educational and informational purposes. A similar concern may require a different treatment plan after clinical and radiographic assessment. Digital planning and surgical guides support accuracy when indicated, but they do not remove biological risk or the need for intraoperative surgical judgment.
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