Universal low-profile intercranial assembly

A cranial assembly, comprising:

• a cranial implant including an outer first surface, an inner second surface, and a peripheral edge extending between the outer first surface and the inner second surface, the cranial implant including topographical markings indicating thickness of the cranial implant and allowing a surgeon to readily and accurately appreciate the thickness of the cranial implant, the topographical markings are composed of contour lines produced by connecting points of equal thickness together to create a continuous line designating a specific thickness of the cranial implant at the contour line.