Dental implants made from artificial materials; dental fixtures, namely, prefabricated parts for crowns, bridges and pontics; implant abutments for dental purposes; medical cover screws for dental purposes; medical pins for dental purposes; medical screws for dental purposes; orthodontic wires; implants consisting of artificial materials for use in bone grafting; synthetic dental bone grafts; instruments for use in prosthetic dentistry, namely, prosthetic instruments for dental purposes; fill...