Fig. 7From: Systematic review on the application of 3D-bioprinting technology in orthoregeneration: current achievements and open challengesPrint process and in vivo calvarial defect evaluation of peptide/magnesium/cell constructGraphical description of hydrogel preparation (a). Evaluation in critical-sized bilateral defect procedure on rats. Bioprinted construct on the PTFE membrane (b), prepared defect after irrigation (c), implantation (d), suture (e), and uCT evaluation at 4Â weeks (f). Reprinted with permission from [55]. Copyright 2020 American Chemical SocietyBack to article page