A highly polished surface on a metallic dental restoration aids considerably in the prevention of the____________?
Correct answer: A. Tarnish and corrosion
- A. Tarnish and corrosion
- B. Thermal conductivity
- C. Warpage
- D. Dimensional change
Explanation
Polishing removes surface irregularities where plaque, moisture, and chemical deposits can accumulate, reducing sites for tarnish and corrosion. It does not materially prevent dimensional change or thermal effects.
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