Can inflammatory and replacement resorption occur simultaneously in the same replanted tooth?
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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. Can inflammatory and replacement resorption occur simultaneously in the same replanted tooth?
- A. Yes — the IADT notes that these two types of resorption may occur concurrently in a tooth
- B. No — they represent mutually exclusive pathological processes with different aetiologies
- C. Only in open-apex teeth where the immature root is susceptible to both processes at once
- D. Only if the tooth was stored in water, which triggers both inflammatory and replacement events
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IADT: 'It is worth noting that the two types of resorption may occur concurrently.' Inflammatory resorption is infection-driven (manageable with endodontics), while replacement resorption reflects non-viable PDL (progressive, irreversible). SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 11
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