These findings are most consistent with which type of resorption?
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At 6-month review, a replanted upper central incisor produces a distinctly high-pitched metallic sound on percussion. The tooth has no mobility. Radiographs show absence of periodontal ligament space with root structure being replaced by bone-like density. These findings are most consistent with which type of resorption?
- A. Infection-related inflammatory resorption driven by bacteria in the necrotic pulp tissue
- B. Ankylosis-related replacement resorption — root replaced by bone, metallic percussion tone
- C. Surface resorption — a transient self-limiting process that resolves without any treatment
- D. Internal resorption — granulomatous tissue within the pulp canal resorbing from the inside
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Show the answer and cited explanation
IADT: 'Radiographic absence of periodontal ligament space, the replacement of root structure by bone, together with a metallic sound to percussion, should be interpreted as ankylosis-related (replacement) resorption.' SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 11
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