Which of the following statements about papilla preservation flaps is false?

The statement regarding the use of the papilla preservation flap for narrow interdental spaces is misleading. Papilla preservation flaps are typically considered advantageous in situations where there are wider interdental spaces rather than narrow ones. The procedure is designed to maintain the integrity of the interdental papilla and, therefore, is most effective in areas where there is adequate space to preserve the tissue and maintain its blood supply.

In contrast, the other statements accurately describe aspects of the papilla preservation flap technique. The use of a crevicular incision around each tooth, without making incisions across the interdental papilla, is essential to preserve the papilla tissue, allowing for proper healing and aesthetic outcomes. The use of an Orban knife to sever a portion of the base of the interdental papilla is a technique aimed at maintaining the apex of the papilla while allowing for flap reflection. Lastly, reflecting the flap without thinning the tissue is crucial to ensure adequate blood supply and to enhance the healing process, preserving the vitality of the papilla.

Overall, the preservation of the papilla is most effectively facilitated in broader interdental spaces rather than narrow ones, making the first statement incorrect.