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Periodontics · single question

What is the key feature that distinguishes peri-implantitis from peri-implant mucositis?

  1. Presence of bleeding on probing alone, present in both conditions and not distinguishing
  2. Progressive radiographic bone loss around the implant — present in peri-implantitis but absent in mucositis
  3. Probing depth alone, regardless of bone level
  4. Patient-reported symptoms alone
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Correct answer: B. Progressive radiographic bone loss around the implant — present in peri-implantitis but absent in mucositis

Both conditions can show inflammation, redness, and bleeding on probing — but only peri-implantitis includes progressive loss of supporting bone, confirmed radiographically/clinically over time. This bone loss is the defining diagnostic criterion.

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