32 DENTAL WAXES
Luca Martinelli Dental waxes Publication nr. 32 - Revision - 06/04/2015 DENTAL WAXES 1 Waxes Wax is the most used substance in dental laboratory to realize fixed and removable dental prothesis. Dental waxes are mostly made by natural and synthetic waxes. This substance is thermoplastic and it’s almost irreplaceable because its properties permit to be easily modelled and to return from liquid state to solid whithout the need of appropriate intervention apart from a simple cooling. This means that wax permits to realize precise shapes that remain so after both hot and cool modelling. Dental waxes must have special features compared to the common wax. Those features have to impart a low coefficient of thermal expansion and contraction; when using instrument to heat and shape, the dental waxes features have to guarantee a uniform heating, the possibility to be modelled by removal, the resistance even with low thicknesses and the maintenance of the give...