Implants · single question

When placing a screw-retained implant crown, how much minimum occlusal space is needed from the implant platform to the opposing dentition?

  1. 5 mm
  2. 8 mm
  3. 7 mm
  4. 9 mm
Show answer and explanation

Correct answer: A. 5 mm

✓ A) 5 mm is the minimum.
For a screw-retained implant crown, a minimum of 5 mm of vertical restorative space is required from the implant platform to the opposing occlusal surface. This accommodates the implant component (abutment) and the crown material. For cement-retained crowns, ~5 mm is also standard, though some clinicians cite 8 mm for ideal prosthetic space for both types combined with biologic considerations.

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