Dental Cements Quiz

Which material can be used for cementing anterior ceramic restorations?

• Zn Polycarboxylate

• ZOE

• ZnPO4

• Composite resin

Using Thick cool glass slab is essential in Zinc Polycarboxylate cement manipulation.

• True

• False

• Not mentioned

• Partially true

All of the following are true in Zinc Phosphate cement manipulation EXCEPT:

• Mixing on small surface area

• Thick cool glass slab

• Powder incorporation in the mix as partitions

• Accurate proportioning of P/L

Marie is a 36 years old housewife, she has a deeply carious lower 6, she experiences severe pain with hot and cold drinks. All the following can be used in this case except

• CaOH

• Zn Polycarboxylate

• Zn PO4

• ZOE

What is the main ingredient in Zinc Phosphate powder?

• SiO2

• MgO

• ZnO

• Bi2O3

What is the main ingredient in the liquid of Zinc Phosphate cement?

• Water

• H2O

• ZnO

• H3PO4

What is the setting reaction of Zinc Phosphate cement?

• ZnO + H3PO4 -> ZnPO4 + Heat

• ZnO + H2O -> Zn(OH)2

• ZnO + HCl -> ZnCl2 + H2O

• ZnO + NaOH -> Na2ZnO2 + H2O

What is the pH of fresh mix of Zinc Phosphate cement?

• 6

• 3.6

• 7

• 10

What type of retention does Zinc Phosphate cement provide?

• Adhesive bond with tooth

• No bond with tooth

• Chemical bond with tooth

• Micro-mechanical retention

What is the main ingredient in Zinc Polycarboxylate powder?

• Magnesium oxide

• Zinc oxide

• Stannous fluoride

• Poly-acrylic acid