Question 85 · LDEK · Tooth discoloration and bleaching
Which ions in AH26 endodontic sealer caused discoloration?
- A. copper.
- B. silver.
- C. cadmium.
- D. zinc.
- E. gallium.
Hint
Recall which metal in the original AH26 powder is notorious for causing greyish staining of tooth tissues.
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