Figure 1

The sample preparation for the mechanical testing is shown. (A) Sample cutting using an ultrasound bone cutter, (B) Three-layered full-thickness neurocranial composite (“full-thickness composite” group); (C) separated outer (*) and inner table (“tables with diploë” group); (D) view on surface of the outer (*) and inner table after separation; (E) view on diploë-facing side of the outer (*) and inner table after separation; (F) sandpaper (60-grit); (G) view on outer (*) and inner table according to (E) after diploë was removed with sandpaper (“tables without diploë” group).