They did do both. From the linked abstract: > Both of these factors are tested through analytical means and a 3D physical model supported by moveable abutment

They did do both. From the linked abstract: > Both of these factors are tested through analytical means and a 3D physical model supported by moveable abutments http://congress.cimne.com/formandforce2019/admin/files/fileabstract/a870.pdf http://congress.cimne.com/formandforce2019/admin/files/filea...