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Endodontics · single question

A tooth requires BOTH crown lengthening and root canal treatment. In what order should they be done?

  1. Root canal treatment first, then crown lengthening
  2. Crown lengthening first, then RCT
  3. Both at the same appointment regardless of order
  4. Extraction is the only option
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Correct answer: A. Root canal treatment first, then crown lengthening

  • A. Correct. Complete the endodontics (resolve pulpal/periapical disease) first, then perform crown lengthening to establish biologic width before final restoration.
  • B. Doing crown lengthening before RCT can compromise isolation/access and complicate endodontic treatment.
  • C. Sequencing matters; they are not interchangeable in a single visit.
  • D. If the tooth is restorable after these procedures, extraction is not indicated.

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