What type of furcation is GTR best suited for?

Guided Tissue Regeneration (GTR) is particularly well-suited for Class 2 furcation defects. This type of furcation involves a horizontal loss of periodontal attachment and bone in a manner that is not complete perforation, allowing for some degree of access to the area for surgical intervention.

In Class 2 furcation defects, there is a significant loss of interradicular bone, but the furcation is still partially covered with tissue. GTR can effectively promote the regeneration of periodontal tissues, including bone and periodontal ligament, because it allows for a barrier membrane to be placed over the defect. This membrane supports the regeneration of periodontal tissues by preventing the invasion of unwanted cells, such as epithelial cells, thus providing an environment conducive for the growth of the desired cells.

GTR is less appropriate for Class 1 furcation defects, which are characterized by minimal involvement with the furcation area, as the remaining bone stability may not necessitate a regenerative approach. Class 3 and Class 4 defects, which are more severe and involve complete loss of attachment or an open communication between the roots, typically present greater challenges and may require different surgical approaches or considerations for treatment. Therefore, GTR's effectiveness aligns best with the characteristics and conditions found in Class