GBR
Also written as: GBR — Guided Bone Regeneration
Guided Bone Regeneration; a surgical technique using barrier membranes to promote new bone growth in deficient areas prior to or concurrent with implant placement.
Full Definition
GBR is a bone-augmentation method derived from guided tissue regeneration (GTR) principles. It employs resorbable or non-resorbable membranes to exclude fast-proliferating epithelial and connective tissue cells from a bone defect, allowing slower-growing osteogenic cells to populate the space and form new bone. The technique is frequently combined with bone graft materials (autograft, allograft, xenograft, or alloplast). Editors should ensure GBR is expanded on first use and is not confused with GTR, which targets periodontal ligament and cementum regeneration rather than bone.
Usage
Usage note: Always expand on first use. Distinguish clearly from GTR, which is a periodontal—not an implant—regenerative technique.
In Context
- "GBR using a collagen membrane and xenograft was performed simultaneously with implant placement to address buccal dehiscence." — Surgical case series
- "Define GBR as 'guided bone regeneration' at first mention; do not conflate with GTR (guided tissue regeneration)." — Manuscript editing note