Evaluation of Volume Stable Collagen Matrix in the Regenerative Outcome of Periodontal Intrabony Defects

Periodontal intrabony defect is a specific osseous defect with definite morphology. Numerous therapeutic modalities for restoring such defects have been investigated. Nanocomposites and nanostructured materials are thought to have a key function in hard tissue research, since natural bone tissue is a distinctive model of a nanocomposite. Collagen has been potentially used in periodontal tissue engineering. The integration of collagen as a structural protein, serving as an essential component of connective tissue into three-dimensional scaffolds implanted after periodontal injury, necrosis or inflammation has attracted much attention in tissue regeneration. If a collagen matrix collapses after implantation, host cell migration and blood vessel penetration may be impaired, which in turn negatively influences tissue degradation and integration as well as extracellular matrix production in the interior of the biomaterial. Thus, volume stability is an important parameter for tissue augmentation. Volume stable collagen matrix (VCMX) is able to overcome the volume stability limitation of most commercially available grafts.7 It is one of the most biocompatible, novel material to be used in this study. It will be the first time that VCMX is to be used to regenerate the periodontal tissues in intrabony defects in humans.