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DENTAL WAXES By: Rabia Zulfiqar
Dental WaxesDental waxes Used inrestorative dentistry for
labrotary Procedures.Thermolastic materialsDental waxes are supplied in form of sheets &
sticks of various shape, thickness, different colorsUSES:I. Making Wax design/ pattern for comlete and partial denturesII. making wax design for inlay, crown and bridgesIII. boxing in of impressionbefore model is pouredIV. registration of occlusal bite relationship
SOURCE OF NATURAL WAXESMINERAL INSECT VEGETABLE
Source
1-paraffin (from distillation of crude petroleum )2-ceresin (obtained from petroleum)
Bees Wax :(obtained from honey comb)
Carnauba wax: from palm treescandelila wax: from plants
USES Used to increase melting range of paraffin wax.
used to modify properties of paraffin wax
JAPAN WAX & COCOA BUTTER GUMS RESINS
Source they are chiefly fats.contain glycerides of palmatic stearic acid
produced by plants Gum arabica & tragacanth
natural resins resemble waxes in appearance & properties to some extent
USES used as protector of glass ionomer cement from moistureduring setting
produce sticky viscous liquid
used as cavity varnishes
Physical properties Melting Range FLOW Thermal Expansion & contraction Internal Stress Plasticity solid-solid transition temperature Mechanical properties. WAXES USED IN DENTISTRY Pattern waxes Inlay wax, Modelling wax, sheet casting wax,Base plate wax Processing Waxes Boxing wax, Utility Wax , Sticky Wax Impression waxes : Corrective Wax , Bite Registration Wax
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