Us "Lab Techs" are going to screw it onto a model and make the crown as well. We get our grubby little fingers all over that thing! lol Come on! There is no such FDA wording that says nobody can touch a custom abutment. We HAVE to touch it as a matter of fact. It gets cleaned at end of the line. But, people put all sorts of dirty things into their mouth all day long including fingers. It is a VERY unsanitary environment to say the least.