Surgical, medical, dental and dental implant instruments and apparatus, in particular abutments, ratchets, torque control devices for ratchets, adapters for ratchets, anchor drivers, screwdrivers, screwdriver inserts, screws, pins, caps, depth gauges, taps, tapes, anchors, cylinders, bone graft systems, adapters, laboratory handles; surgical, medical, dental and dental implant instruments and apparatus, in particular insertion instruments, extension shells, plastic necks, transfer aids, activators and deactivators for bar matrices, extractors, rings, springs, inserting devices, applicators, positioning cuffs, jaw models, instruments for the care and maintenance of implants; dental implants made from artificial materials; prosthetic components, included in this class; dental prostheses and parts therefor for use in dentistry, endoprostheses and parts therefor for use in dentistry, endoprostheses for use in human, dental and veterinary medicine.