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Implants · single question

An implant is planned for the space between #6 and #8, but the panoramic shows insufficient mesiodistal room. What should the dentist do?

  1. Place a narrower implant regardless of the remaining space
  2. Orthodontically increase the mesiodistal space before implant placement
  3. Place the implant at an angle to fit
  4. Proceed with a standard implant and accept the reduced space
Show answer and explanation

Correct answer: B. Orthodontically increase the mesiodistal space before implant placement

  • A. Even a narrow implant requires the minimum clearances; placing one without adequate space risks root damage and bone loss.
  • B. Correct. A minimum of about 1.5 mm of bone is required between the implant and each adjacent root, plus the implant diameter itself. If that is unavailable, orthodontic space opening must precede surgery.
  • C. Angling the implant to gain space creates prosthetic and biomechanical problems and does not solve the crestal deficiency.
  • D. Insufficient inter-root distance causes crestal bone loss, papilla loss and possible root injury.

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