Ridge preservation or guided bone regeneration (GBR) in postextraction sockets aims to establish adequate bone availability to allow for implant placement. According to the American Academy of Periodontology, ridge preservation is defined as “a surgical procedure aimed at preventing ridge collapse and preserving ridge dimension after tooth extraction, typically done for purposes of implant site development,” whereas GBR is defined as “the surgical augmentation of a resorbed ridge.”

Traditionally, these procedures depend on the use of bone replacement grafts in combination with membranes that act as barriers to prevent the downgrowth of epithelium and facilitate the repopulation of the defect with cells capable of increasing the osteogenesis potential. Membranes can be broadly classified as nonresorbable and resorbable. Whereas resorbable membranes are associated with less postoperative complications, nonresorbable membranes provide superior space maintenance.

Following tooth extraction, without ridge preservation, approximately 5–7 mm of the horizontal...

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