Equipment, tools and accessories for elaboration of dental plaster models, namely, plaster vibrators, plaster mixers, model trimmers, plaster dosing machines, decanters, pins drillers, interior trimmers, pneumatic or electric hand hammers for breaking of plaster; Accessories and tools necessary for modeling and manipulation of plaster for dental use, namely, spatulas, cups, dispensers, plaster knives, containers for storage and elaboration of dental plaster, decanters for plaster, individualization systems and die tray systems; Metal pins for individualization, namely, metal pins for artificial teeth; dental apparatus and machines used in the duplicating of dental models, namely, petroleum jelly conditioners, petroleum jelly mixers, silicone mixers, flask for the duplicating with silicones and jelly, jelly heaters, silicone injectors; Machines and equipment for the mixing and preparing of alginate for dental impressions, namely, alginate mixers, alginate dosing machines and alginate conditioners; Alginate related consumables and accessories, namely, bowls, spatulas, knifes, containers, and dosing devices for use with alginate for dental impression; Equipment, tools and accessories for polishing of dental elements using abrasives, electrolytic, chemical or physical processes, and ultrasonic devices, namely, polishers, electrolytic polishing machines, blasting by sand, glass beads, grinding media and shot, dental micromotors; Ultrasonic cleaning apparatus for dental elements; Accessories and tools for polishing or grinding of dental elements, namely, brushes, polishing wheels, metal cutters, removable abrasive discs, silicone polishers, all these accessories and consumables both in wheel version to be mounted directly on the brush holder of the machine and the mounted in its own shaft; Equipment, tools and accessories for the polymerization of dental elements, by methods of pressure, light, temperature, or a combination of these variables, namely, polymerizing machines and its accessories in the nature of clamps and flasks for dental use, machines for polymerizing with washing function; Dental tools necessary for polymerization, namely, flanges, dental muffles, tweezers and pliers, knives and spatulas; Hydraulic and manual presses for dental polymerization; Machines, equipment, tools and accessories for the treatment and handling of dental waxes, namely, electric spatulas, heaters, melters; Accessory and tools for the treatment and handling of dental waxes, namely, spatulas, cutters, knives, specific tools for dental wax, pliers, tweezers; Equipment, tools and accessories for the treatment and handling of dental porcelains and zirconia; namely, porcelain furnaces, zirconia furnaces; Accessory and supplies necessary for the treatment and handling of dental porcelains and zirconia, namely, brushes, spatulas, dispensers, carvers, trays, porcelain containers, accessories for porcelain furnaces, ceramic firing tries tweezers tongs; Equipment, tools and accessories for the heating and melting of dental materials, namely, casting machines, furnaces for dental materials and dental use, preheating furnaces for dental materials, casting machines for dental use; furnaces for treatment of metal, porcelain and zirconia for dental use; accessories for dental furnaces and casting machines, namely, tweezers, ceramic trays, thermometers, trays, fasteners and recipients to be introduced into the furnaces; Devices and systems for the purification of air steam and vapors generated in dental laboratories and dental clinics, namely, vacuum cleaners, aspiration cabinets and facilities attachable to polishing machines, cyclones, filtration systems, suction units and systems, purification systems for toxic gases, air conditioning devices, air treatment; Suction devices and systems for steam and water steam treatment devices for its use in dental laboratories and dental clinics, namely, steam generators with or without pressure and suction cabinets compatible with steam generators; Compression devices, systems, filters and compressors used to pressurize the air for a later use in the laboratory or dental clinics; Furniture and tools used in clinics and dental laboratories, namely, chairs for patient care and dental units consisting of dental chair, laboratory worktables, special chairs for medical use, chairs for dentists, special furniture for dental clinics and dental laboratory use in the nature of dental treatment tables, trolleys for dental equipment, working cabinets used in dental laboratories and dental clinics; Elements for management and classification used in clinics and dental laboratories, namely, working trays, instrument holders, storage boxes and classification elements; Lamps for medical and dental purposes; lamps for use in dental laboratories and dental clinics; Lighting systems for dental facilities; Thermoforming machines for plastic materials used in dental laboratories and dental clinics; Injection apparatus of plastics, polyamides, polyurethanes and acrylic materials for use in dental laboratories and dental clinics, namely, injection molding machines for plastics and its accessories, namely, raw plastic, polyamides, acrylics, polyurethanes used in plastic injection techniques in clinical and dental laboratories; Dental articulation systems, namely, articulators; accessories, tools and consumables for dental articulation systems, namely, dental articulators, measuring elements for the adjustment of articulators, facial bow, calibration systems for articulators