Evaluation of Soft Tissue Profile Changes Following Autogenous Fat or Onlay Polyetheretherketone (PEEK) Augmentation Versus Sliding Genioplasty for Correction of Deficient Chin

Fat is a filler with ideal properties as it naturally integrates into tissues with 100 % biocompatibility. Moreover, fat contains different cell types, including adipocytes, fibroblasts, smooth muscle cells, endothelial cells, and adipogenic progenitor cells called"preadipocytes"2, adipose-derived stem cells (ASCs) which have a differentiation potential similar to that of other mesenchymal stem cells and it could be harvested in great amounts with minimal donor-site morbidity, ASCs have proved to be particularly promising for regenerative therapies. In addition, it's relatively inexpensive and readily available, which makes it an attractive alternative for facial augmentation. On the other hand PEEK is considered a highly biocompatible material with mechanical properties almost similar to cortical bone. It is widely used in cranioplasties and facial reconstruction.