In processing methyl methacrylate, the resin may show porosity if the flask is placed too soon porosity most likely occur_____________?
Correct answer: A. In the thickest part
- A. In the thickest part
- B. Near the borders
- C. Throughout the denture
- D. On the denture surface
Explanation
Premature heating can raise the temperature of methyl methacrylate above its boiling point, producing gaseous porosity. This is most prominent in the thickest portion, where heat is retained and dissipated least effectively.
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