Whereas in one of them the authors found a greater amount of IL-11 in the crevicular fluid of patients with gingivitis (5), in the other, they only found a higher amount of this interleukin in the crevicular fluid of patients with periodontitis (17), so more studies are required to analyze this interleukin as, at the moment, there is no clear consensus in terms of its relationship with gingivitis. Here, IL11 is linked to periodontitis.