Question 80 (part 2) · LDEK · Trauma to permanent teeth
An indication for decoronation is:
- A. posttraumatic ankylosis of permanent central incisor at infraposition of >1mm.
- B. intrusion of permanent central incisor at infraposition of >1 mm.
- C. reimpaction of second primary molar at infraposition of >2 mm.
- D. ankylosis of first primary molar at infraposition of >2 mm.
- E. extrusion of permanent central incisor.
Hint
Decoronation preserves the alveolar ridge in a growing patient; think which tooth and which complication lead to progressive infraposition.
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