10 Medical and dental instruments, namely, dental burrs, dental picks, dental mirrors, dental ultrasonic hand pieces and tips therefor, spraying instruments for dental use, dental drills, cavity preparation instruments, namely, cavity brushes; dental scalpels, milling instruments for dental use, oral irrigators, prosthetic instruments for dental purposes, drilling jigs for surgical and dental applications; medical and dental apparatus, namely, extra-oral and intra-oral light systems, intraoral scanning devices, intraoral X-ray sensors, intraoral and extraoral X-ray scanning devices, X-ray apparatus for medical and dental use, digital sensor used for taking digital dental radiographs; dental prophylactic instruments, namely, polishing instruments; Intra-oral dental light system; Polymerizations apparatus for dental purposes; furniture for medical and dental use, namely, oral prophylactic dental patient examination chairs with dental instruments, dental patient treatment chairs with or without basins for rinsing the mouth, treatment sites for oral prophylactics comprising a dental patient examination chair and dental instruments, as listed above in this class, connection consoles for dental hand pieces, namely, plates and holder for dental hand pieces, dental instrument cabinets, dentists' elements, dental assistant's elements, treatment tables, footrests for patient treatment chairs, dental sinks and cuspidors, lamps for dentists, trolleys; dental hand pieces, namely, dental burrs, dental ultrasonic hand pieces, optical scanning appliances for medical and dental use; x-ray apparatus for dental and medical use