Question 18 · LDEK · Dental laboratory technology
Too short a period of the initial phase of thermal polymerization (65°C) of acrylic resin results in:
- A. creating streaks and discolorations.
- B. incompatibility between the denture and denture bearing area.
- C. lack of adherence between the teeth and denture base.
- D. porosities in the acrylic material.
- E. increased bite.
Hint
Methyl methacrylate boils at about 100.8°C and polymerisation releases heat; think about what happens to unreacted monomer in thick parts.
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