TLR2 and periodontitis: In a recent meta-analysis, significant association was found between periodontitis and TLR-2 rs1898830 polymorphism under the allelic model (A allele vs. G allele: p = 0.014, OR = 1.208, 95% CI: 1.039–1.406), recessive model (GG vs. GA + AA: p = 0.028, OR = 0.755, 95% CI: 0.588–0.970), and codominant model (GG VS.