“…These satisfaction rates after a 1 year follow-up period and in a small cohort of patients seem to surpass those reported after implant-based augmentation procedures. 57 The following two recently published articles are especially worth mentioning in regard to the AFG technique: 1) systematic review by Strong et al, 2 which showed higher retention rates with centrifugation and slow injection of fat and 2) special topic article by Zielins et al, 58 which highlights the latest in vitro, as well as in vivo, findings regarding important steps in the AFG process. In summary, the authors described the perception of a three-zone survival system (ie, surviving, regenerating, and necrotic) when it comes to fat graft survival as previously described by Eto et al 59 The highest yield of AFG volume results from the survival of the regenerating zone, which brings forth ASCs with the potential for differentiation and replacement of "losses" in the necrotic zone, as well as the increased survival through the enhancement of revascularization.…”