Before restoring implants planned at #14 and #20, the casts and a lateral photo show tooth #15 is over-erupted (extruded). The key consideration before restoring is to:

Correct answer: A. Correct/rehabilitate the occlusal plane (manage the extruded #15)

• A. Correct. An extruded #15 disrupts the occlusal plane; it must be addressed (intrusion, reduction/restoration, or extraction as indicated) so the restorations occlude properly and the plane is harmonious.
• B. Ignoring the extruded tooth leads to occlusal interferences and restorative failure.
• C. Extracting all opposing teeth is excessive and unjustified.
• D. Arbitrarily changing the vertical dimension is not the appropriate solution.