Inlay waxes may be softened over a flame or in water at 54 ☌ to 60 ☌ to enable their flow in the liquid state and their adaptation to the prepared tooth or die. If applied as a veneer in a sufficient thickness, its opacity must be sufficient to mask colored die stones. Ivory-colored wax is useful for aesthetic case presentations to patients. The colors are useful to provide a suitable contrast against a die that is an accurate replica of a prepared tooth or dental arch form. Dental waxes are supplied in a variety of colors including blue, green, yellow, red, and ivory. The colors of inlay waxes should contrast with the hues of teeth and dies. For direct wax techniques type I inlay wax must soften at a temperature that is not hazardous to the pulp tissue, and it must harden at a temperature above mouth temperature. It must also be able to disintegrate, volatilize, and be eliminated completely from an investment mold during the burnout or wax elimination procedure. Inlay wax must exhibit excellent adaptability to model or die surfaces, and it must be free from distortion, flaking, or chipping during the preparation of patterns. Inlay wax is sometimes referred to as casting wax, although other types of pattern waxes also fall into this category. These patterns are reproduced in gold via a casting process and in ceramic by hot-isostatic-pressing procedures. Inlay waxes are used to prepare patterns. One of the correction types includes waxes for repairing ceramic margin defects on all-ceramic inlays and crowns. Casting wax is used for partial denture frameworks and other metal frameworks. Each of these waxes has a melting range over which the temperature must be adjusted by means of a burner flame to control the flow properties for each specific application.ĭental waxes can also be classified in one of three types, pattern wax (inlay, casting, and baseplate types), processing wax (boxing, utility, and sticky types), and impression wax (bite registration and correction types). Type II waxes are required for the lost-wax processing of cast prostheses and frameworks. Laboratory products include boxing wax, baseplate wax, sticky wax, beading wax, utility wax, and hard, medium, and soft type II inlay-type waxes for making patterns on patients’ models using the indirect wax technique. Clinical products include bite registration wax, disclosing wax (also known as pressure-indicating paste), utility waxes for altering and adapting impression trays, and low-melting type I inlay waxes used in the mouth for direct-waxing processes for pattern production. The wide variety of dental waxes can be classified into two groups, those used primarily in the clinic and those used in commercial dental laboratories. In comparison to plant-derived carnauba and candelilla waxes, animal-derived beeswax, smd mineral-derived paraffin and ceresin waxes, other dental waxes are produced from components of fats, gums, oils, and resins. Candelilla wax, a major component of some dental waxes, is obtained from plants growing in Costa Rica, Guatemala, Mexico, Nicaragua, Panama, and the southwestern United States. It is derived from the fronds of carnauba palm trees and is one of the main components of dental inlay wax. Synthetic waxes are more uniform than natural waxes in their organic structure and more homogeneous in composition.Ĭarnauba is one of the hardest and most durable waxes. Synthetic waxes are typically composed of hydrogen, carbon, oxygen, and chlorine. Although beeswax is still used today, modern waxes, such as those used to preserve furniture and automobile surfaces and those designed for dental procedures, are made from natural plant and animal sources some types are derived synthetically from petroleum products and distillates. Beeswax was derived from secretions that bees use to build honeycombs. In ancient times beeswax was used for softening skin, binding together reeds used for flutes, coating and preserving valuable objects, candle production, and making sculptures and statues of highly regarded public figures. Wax has been a valuable commodity for over 2000 years.
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