What characteristic is shared by both zinc eugenol cement and polycarboxylate cement?

Explanation

Both zinc eugenol cement and polycarboxylate cement exhibit chelation, which is the process of forming a complex between metal ions and organic molecules. While polycarboxylate cement uses polyacrylic acid as the liquid and bonds chemically to the tooth, zinc eugenol cement does not share these features. The substitution of eugenol by EBA to improve strength is specific to zinc eugenol cement.