Pathology · single question
A single tooth attempts to divide, sharing the same root/pulp — the count is normal. This is:
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Correct answer: B. Gemination
- A. Incorrect. Fusion joins two separate germs and reduces the count by one.
- B. Correct. Gemination is incomplete splitting of a single tooth germ — one root/canal, a bifid crown, and a NORMAL tooth count.
- C. Incorrect. Twinning produces a complete extra (supernumerary) tooth, increasing the count.
- D. Incorrect. Dens in dente (dens invaginatus) is an enamel-lined invagination, not a splitting tooth.