If curing occurs at temperature more than 100°C porosity results in which area of denture______________?
Correct answer: A. Hard thick central area
- A. Hard thick central area
- B. Thin Palatal area
- C. Thin area of flanges
- D. Porosity is uniformly distributed
Explanation
Heating denture acrylic above the boiling point of its monomer produces gaseous monomer porosity, especially in the thick central portion where heat is retained. Thin areas allow heat and monomer vapour to escape more readily.
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