Occlusive barriers in bone regeneration: review of the literature

Alveolar healing post-extraction is critical for implant success, especially in cases of severe bone resorption. Before implant therapy, alveolar healing was often overlooked. Today, bone augmentation techniques, including occlusive barriers, have improved bone regeneration outcomes. Customized titanium barriers, in particular, offer an innovative solution, overcoming the limitations of traditional membranes and enhancing the predictability and stability of long-term results in implant dentistry. An online literature search was conducted using PubMed, Medline, and Google Scholar, focusing on studies from 1970 to 2023. The search included articles on bone regeneration, GBR (Guided Bone Regeneration), and occlusive titanium barriers. Inclusion criteria focused on recent studies and clinical cases, and information was gathered from the official websites of developers in the field. Occlusive barriers in GBR have resolved many challenges of previous techniques, such as soft tissue perforation and the need for additional surgery. Recent studies show that titanium barriers, especially those customized with CAD/CAM technology, significantly enhance bone regeneration while reducing complications. These barriers prevent collapse at the regeneration site and allow the use of temporary prostheses during healing. Occlusive titanium barriers have shown promising results for bone regeneration, overcoming the limitations of previous methods. This technique reduces the risk of perforations and complications and allows for temporary prostheses during healing. While further studies are needed, initial results indicate that occlusive barriers are highly effective, especially for vertical ridge augmentation, improving long-term implant therapy success.