Medical and dental instruments and apparatus; parts of all of aforementioned instruments and apparatus (included in this class); dental prophylactic instruments; special furniture for medical use, namely, instrument carriers, instrument cabinets, dentists' elements, assistants' elements, treatment tables, footrests, cuspidors, lamps, trolleys, containers with fixed wheels; extra-oral and intra-oral lighting devices for medical use, connection consoles for dental handpieces; optical measuring appliances for medical and dental use; image acquisition devices for dental and medical use; grinding machine for medical and dental ceramics as well as for materials suitable for teeth and parts of teeth; x-ray appliances for dental and medical use, dental instruments and apparatus for planning and realization of dental prostheses and implants