ZINC POLYCARBOXYLATE/ POLYACRYLATE

 Both Zn phosphate & polycarboxylate has ZnO particles
 Formed when Zn oxide reacts with polyacrylic acid*
 1st material to chemically bond to tooth structure
 Bonding with enamel ↑,dentine ↓
 Tin / Stannous fluoride is added
 Tin increases
a. Working time
b. Strength }1st option
c. Not for fluoride releases (don’t tick such options for exam) OK !