EOS President’s Debate 2025: Pushing the limits: can bone recover after roots are moved outside of the bone?

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Bone… our fortress, our safety. During orthodontic treatment, we move teeth within it. But what happens when the roots end up outside the bone? Does this inevitably signal trouble? Or maybe, by moving the roots back into the bone, we provide the patient with health and ourselves with peace of mind

Is the perspective of the orthodontist always the same as that of the periodontist or biologist?

These dilemmas were discussed by a group of outstanding specialists during the President’s Debate. The discussion covered four key perspectives:

  • Tooth movement across the alveolus – Alejandro Iglesias Linares examined current evidence on tooth movement across the cortical plate, mechanisms of bone adaptation, and the risk of asymptomatic bone dehiscence.
  • Gingival recession and orthodontic treatment – Anton Sculean addressed when and why gingival recession may occur during or after orthodontic treatment, the prerequisites for its development, and whether progression can expose the entire root.
  • Bone recovery after root displacement – Greg Huang explored the potential for bone regeneration when roots lie outside the alveolar housing, and how predictable such recovery may be.
  • Bone grafting in orthodontics – Carlos Flores-Mir discussed the evidence for bone grafting to increase alveolar volume and its implications for orthodontic tooth movement.
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