Waxes Question and answers rated A+ 2024/2025 Waxes
Learning Objectives:
1) Inlay pattern - accuracy for denture patterns
2) Boxing of an impression before poured (with
stone)
3) Impression for registration of occlusal bite relationships
What procedures in dentistry uses wax?
W...
2) Boxing of an impression before poured (with
stone)
3) Impression for registration of occlusal bite relationships
What procedures in dentistry uses wax?
Waxes are organic crystalline compounds
- thermoplastic moulding material that is solid at room temperature
What are dental waxes?
Heating converts the wax to a liquid phase - easily mouldable
- Waxes are pyrolysed at some point = they melt and/or decompose into water
vapour and carbon dioxide
What happens to dental waxes when heated?
, An individual wax has a sharp well-defined melting point
- above which it is a mobile liquid
- and below which is a solid
- as such it would be of little practical use
What is the melting property of wax?
For dental use manufacturers blend two or more waxes
- to give a material with a softening temperature range over which it is a useful
mouldable material.
How do dentists manage this melting property of wax?
Aim is to give a set of given properties over a specific range of temperatures
- Contain a range of molecular weights that affect the melting and flow
properties of waxes
- Chemical components of both natural and synthetic waxes impart
characteristic physical properties to the wax
- this determines their usefulness for the intended applications
What is the aim of mixture of waxes?
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