The average life of silicate cement restoration is______________?
Correct answer: B. 4 years
- A. 2 years
- B. 4 years
- C. 6 years
- D. 8 years
Explanation
Silicate cement restorations have poor resistance to oral moisture and gradual dissolution, so their average clinical life is about four years. This short service life is why they were replaced by more durable restorative materials.
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