Provide the scanning column for a planning system and the product for producing oral or facies maxillaris recovery. Scanning column includes a main body made of titanium or stainless steel, and the surface of at least part main body is surface treatment using the following steps: in order to obtain about 1.5 um-2.The blasting treatment treated surface of the surface roughness Ra of 5 um coats treated surface using physical vapor deposition (PVD) or chemical vapor deposition (CVD) technique. Coating on treated surface deposits a layer, carrys out the group of free chromium, chromium-nityrtide, aluminium nitride and titanium nitride composition. It may include an intermediate steps before the step of after surface treatment is the blasting treatment the step of and in coating, rinsing main body is in the case where acid removes husky residue from scanning column.
