Keywords: پلی-4-هیدروکسی بوتیرات; 2D; two-dimensional; 3D; three-dimensional; α-SMA; α-smooth muscle actin; BAT; Biological Architecture Tool; BMP-2; bone morphogenetic protein 2; CAD; computer-assisted design; CAM; computer-assisted manufacturing; CNTF; ciliary neurotrophic factor; CT;