This video discusses the importance of cortical perforations in guided bone regeneration procedures. Specifically, it reviews the concept of blood supply to the graft, why it is important to ensuring the success of the graft, and how cortical perforations help ensure vasculature in growth. Clinical photos, including a case in the posterior mandible, show what you want and do not want to see at your graft site. The video closes with a short tip clinical tip about perforating to the cortical plate to get into the marrow spaces. For an interesting study regarding Cortical Perforations, please see The influence of cortical bone perforation on guided bone regeneration in humans
This study found that cortical bone perforation favourably affects the amount of new bone formation in the grafted sites after 7 months of healing. Cortical bone perforation significantly increase number of new vessels (angiogenesis) of the regenerated bone. (Int J Oral Maxillofac Surg, 2017 Feb;46(2):261-266. doi: 10.1016/j.ijom.2016.10.017. Epub 2016 Nov 16.,Tarnow et al.))
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