Question 294 · LDEK · Developmental disorders of teeth
The effect of direct acting of ionizing rays on germ of permanent tooth may embrace:
- A. enlargement of tooth dimensions.
- B. cynodontia.
- C. shortage or lack of tooth root.
- D. fusion with the adjacent tooth germ.
- E. taurodontism.
Hint
Ionizing radiation kills actively dividing cells — think about which part of the tooth is still forming and what happens when its growth stops.
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