Implants · single question
Tooth #12 is missing. What is the MINIMUM mesiodistal space required to place an implant?
Show answer and explanation
Correct answer: B. 7mm
A standard 4mm implant plus 1.5mm clearance on each side to adjacent teeth = 7mm minimum mesiodistal space.
- A. 5mm is insufficient for standard implant placement with adequate biologic space from adjacent teeth.
- B. CORRECT. Minimum mesiodistal distance = approximately 7mm. This accommodates a 4mm implant plus 1.5mm of safety clearance on each side to adjacent tooth roots.
- C. 11mm is ideal for larger diameters but far exceeds the minimum for standard implant placement.
- D. 9mm allows more comfortable placement but exceeds the minimum requirement.