Abstract
New trends in dental prosthodontic interventions tend to reach biomimetic behaviour. Evolutions of CAD-CAM techniques enable to build ceramic prosthetic crowns and, above all, to set the cement joint thickness that links crown and remaining dental tissues. CAD is based on “in-mouth” optical print (i.e. shape on which the clone is glued and contact surface of the opposite jaw tooth). Prosthetic crown is then manufactured, using these parameters, from a feldspathic ceramic rod. In this study, the cloning process gives two samples with identical shape for further use: clone and tooth displacements are measured by speckle interferometry.