Armchairs for medical or dental purposes; artificial limbs, eyes and teeth; 3D optical scanners for use in dentistry; dental CT scanners; parts and fittings of dental CT scanners; optical scanning apparatus for dental purposes; oral scanners for use in dentistry; machines and apparatus for use in dentistry; dental apparatus and instruments; dental milling machine; X-ray apparatus for medical and dental use; scanner for use in dentistry; dental operation units; dental equipment; dental apparatus.