Learning objectives - Following this lecture, the attendee will be able to:

• Explain the biological and mechanical properties of collagen membranes in guided bone regeneration (GBR).
• Analyze the advantages of their use compared to other membranes, including their biocompatibility, resorbability and ease of handling.
• Describe its clinical indications in dentistry and reconstructive surgery, including bone defects, dental implants and periodontics.
• Address contraindications and limitations for proper and safe use.
• Review the most recent scientific evidence on their efficacy in different clinical scenarios.