Güncü, et al.10(2012) evaluated IL-1β expression in the peri-implant crevicular fluid of dental implants with healthy or inflamed peri-implant gingival tissues using enzyme immunoassay (ELISA) and found significantly higher IL-1β levels in the group with peri-implantitis. The gene discussed is IL1B; the disease is Peri-Implantitis.