More recently, MMP‐8 and MMP‐13 in saliva increased with periodontitis disease progression and decreased after its nonsurgical treatment (Ozcan, Saygun, Serdar, Bengi, & Kantarci, 2016), but the concentration ranges were mostly higher for MMP‐13 and much lower for MMP‐8, than here reported. Here, MMP13 is linked to periodontitis.