Restorative & Materials · single question
The same betel-chewing patient also has a single darkened (discolored) tooth #8. The most likely cause of the discoloration of that one tooth is:
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Correct answer: A. Trauma causing pulpal necrosis/intrinsic staining
- A. Correct. A single dark tooth typically reflects prior trauma with pulpal hemorrhage/necrosis producing intrinsic discoloration.
- B. Betel staining is generalized (extrinsic), not isolated to one tooth.
- C. Fluorosis affects multiple teeth symmetrically.
- D. Tetracycline staining is generalized banding across many teeth.
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