If suprabony pockets are less than how many millimeters, we can correct the loss of attachment?

• A. 2mm
• B. 5mm
• C. 3mm
• D. 4mm

Answer: (B)

The key idea is that the ability to restore attachment in a suprabony pocket depends on how deep the pocket is. Suprabony pockets occur when bone loss is horizontal, so the base of the pocket is above the crestal bone. When the pocket depth is shallow, thorough debridement and proper flap access allow the tissues to heal and new attachment to form more reliably.

Five millimeters is the practical threshold. Pockets shallower than five millimeters offer a favorable environment for reattachment and potential gain in attachment after periodontal therapy. As depth increases beyond that, the chances of true regeneration diminish, making restoration of attachment less predictable and shifting the focus toward maintenance and reducing pocket depth through other means.