Implant materials from medical grade titanium with coatings applied by atomic layer deposition (ALD) method are tested by inserting the screw-implants into pig's femur. This allows to assess the adhesion of the coating to the implant as well as the durability of the coating during insertion. These experiments are carried out in the University of Tartu, Institute of Physics, Thin Film Laboratory. One of the laboratory's focuses is working with thin biocompatible coatings that enhance bone growth on medical grade titanium implants. For inserting dental implants coated by ALD method into the bone, a slightly smaller hole is previously drilled into the bone. After removing the implants from the bone, the condition of implant surface as well as the deposited coating are studied.