TNFRSF11B and Peri-Implantitis: The OPG rs2073618 polymorphism was significantly associated with peri-implantitis in Recessive model (CC vs. GG + GC: OR = 2.22, 95% CI: 1.29–3.84, P = 0.765 for heterogeneity) and Homozygote model (CC vs. GG: OR = 2.15, 95% CI: 1.16–3.98, P = 0.989 for heterogeneity), not in Allele model, Dominant model and Heterozygote model.