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Dental apparatus, namely, intra-oral light systems; Dental device that expands the mouth to improve the field of view inside the mouth, and extracts saliva from the work area inside the mouth; Dental instruments for use in dental procedures and surgeries; Dental instruments, namely, lighting apparatus, operating lights, saliva ejectors, inter oral illuminators, dental lights, dental suction devices, tissue retractors, dental tongue and cheek retractors, and dental aspirators; Dental operating lamps; Intra-oral dental light system; Medical and dental apparatus, namely, devices for dental use in the nature of bite blocks, dental aspirators, dental lights, dental suction devices, disposable mouthpieces, mouthpiece lubricant, dryfield illuminator, gingival retractors, intra-oral illuminators, dental operating lights, saliva ejectors, saliva suction devices, tissue retractors, tongue guards, and dental tongue and cheek retractors, dental light systems