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Endodontics · single question

A patient presents with 4mm intrusion of a maxillary central incisor. What is the most appropriate INITIAL management?

  1. Allow spontaneous re-eruption and monitor
  2. Orthodontic extrusion over 3-4 weeks
  3. Immediate surgical repositioning
  4. Extract and place implant
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Correct answer: A. Allow spontaneous re-eruption and monitor

For mild intrusion (<7mm) in permanent teeth, spontaneous re-eruption is preferred. Repositioning is considered if re-eruption fails within 8 weeks.
  • A. CORRECT. A 4mm intrusion (mild) should be managed by allowing spontaneous re-eruption and monitoring. If re-eruption does not begin within 8 weeks, repositioning should be considered.
  • B. Orthodontic extrusion is an option for severe intrusion or when spontaneous re-eruption fails, not the first-line treatment for 4mm.
  • C. Immediate surgical repositioning is indicated for severe intrusion (>7mm) or mature root formation — not routinely for 4mm.
  • D. Extraction is not indicated as initial treatment for intrusion injuries — the tooth should be given a chance to re-erupt.

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