“…The most periodontitis-related SNPs have been studied in the Toll-like receptor-2 (TLR-2) [16], TLR-4 [17], Fc-γ receptor (FCGR2A) [18], interleukin-1 (IL-1) [19][20][21], IL-4 [22], IL-6 [23][24][25], IL-10 [23,26], IL-18 [27,28], vitamin D receptor [11,29], tumor necrosis factor alpha (TNFA) [30][31][32], matrix metalloproteinase (MMP) [33,34], and cyclo-oxygenase-2 (COX-2) [35].…”