MMP8 and periodontal disorder: The potential usefulness of disease‐specific inflammatory biomarkers such as matrix metalloproteinase (MMP)‐8 in oral fluids (saliva, gingival crevicular fluid (GCF), peri‐implant sulcular fluid (PISF), and mouth rinses) has been demonstrated in several studies that have correlated MMP‐8 with periodontal disease course and severity.8, 9, 10, 11, 12