IL1B and gingivitis: A strong correlation was observed between baseline samples and samples collected 14 days after resolution of experimental gingivitis (day 24) of IL-1β (R = 0.66, p < 0.001), IL-1Ra (R = 0.85, p < 0.001), IL-8 (R = 0.79, p < 0.001), and VEGF (R = 0.80, p < 0.001).