Implants · single question
What is the minimum safe distance an implant should be kept from the inferior alveolar nerve canal?
Show answer and explanation
Correct answer: A. 2 mm
- A. Correct. A safety margin of about 2 mm above the IAN canal is recommended to avoid nerve injury.
- B. 0.5 mm is too close and risks paresthesia/injury.
- C. 5 mm is more than the minimum required (though more clearance is fine if available).
- D. 8 mm far exceeds the minimum safety distance.