Question

What is the minimum recommended distance between two dental implants placed in an edentulous ridge to ensure optimal bone health and implant success?

• A. 3 mm
• B. 2 mm
• C. 1.5 mm
• D. 1 mm

Hint:

Maintain at least 3 mm between adjacent implants and about 1.5–2 mm from natural teeth to preserve bone and soft tissue health.

Answer 1

The Correct Option is A

Step 1: Understanding implant spacing requirements.
Proper spacing between dental implants is crucial to maintain adequate blood supply to the inter-implant bone and to prevent crestal bone lossInsufficient distance may compromise bone health and reduce long-term implant success
Step 2: Biological width and bone preservation concept.
When implants are placed too close to each other, the bone between them may resorb due to overlapping zones of bone remodelingMaintaining adequate distance preserves the inter-implant bone peak and supports soft tissue stability
Step 3: Standard clinical recommendation.
Clinical guidelines recommend a minimum of 3 mm distance between two adjacent implantsThis spacing ensures proper vascularization, reduces marginal bone loss, and enhances esthetic and functional outcomes
Step 4: Conclusion.
Therefore, the minimum recommended distance between two dental implants is 3 mm