Related Articles on PubMed The inhibition effect of non-protein thiols on dentinal matrix metalloproteinase activity and HEMA cytotoxicity. J Dent. 2013 Dec 4; Authors: Nassar M, Hiraishi N, Shimokawa H, Tamura Y, Otsuki M, Kasugai S, Ohya K, Tagami J Abstract OBJECTIVES: Phosphoric acid (PA) etching used in etch-and-rinse adhesives is known to activate host-derived …