Occlusal view of reconstructed maxillae of control (A–D) and expansion (E–H) animals at day 14 (A, B, E and F) and day 28 (C, D, G and H). B, D, F and H are high magnification images of the areas marked by rectangles in A, C, E and G, respectively. E: rectangle marks the expanded suture area. G: rectangle marks the same suture position as the rectangle in E; the suture now is narrower. Scale bar (A): 1.0mm.