Chapter 45 Dental Cements

Which type of dental cement is used as an adhesive for permanent indirect restorations?

• Temporary

• Luting

• Provisional

• Liner

When are temporary cements used?

• Cementing veneers

• Placing a provisional crown

• Cementing cast restorations

• Restoring teeth

What would occur if there were a delay between mixing a luting material and placing the indirect restoration?

• Decreased viscosity

• Initial set begins

• Improved thermal properties

• Improved wettability

How should dental cements be dispensed for mixing?

• Incorporate the liquid into the powder.

• Dispense the powder first and then the liquid.

• Dispense the material the evening prior to beginning the procedure.

• Dispense by holding the bottle of liquid at a 45-degree angle to ensure accurate drop size.

Which cement gives off an exothermic reaction and must be spatulated over a wide area on a cool, dry, thick glass slab?

• Zinc oxide–eugenol

• Polycarboxylate

• Zinc phosphate

• Composite resin

How should cement be placed into an indirect restoration for delivery?

• Fill casting until it is overflowing.

• Add a thin lining to cover all internal walls of the casting.

• Fill to the top margin of the crown.

• Add a thin layer on the very bottom of the crown.

When compared to zinc phosphate cement, which statement regarding polycarboxylate cement is correct?

• It forms a mechanical bond to tooth structure.

• It is generally used as temporary sedative cement.

• It is less irritating to the pulp.

• It is mixed on a glass slab.

Which type of glass ionomer cement is designed for cementation of indirect restorations?

• A. I

• B. II

• C. III

• D. IV

Which type of cement is preferred for cementation of ceramic veneers?

• Zinc phosphate

• Polycarboxylate

• Glass ionomer

• Resin-based cement

When resin-based cement is used, how should the tooth surface be prepared?

• Two thin layers of cavity varnish

• Etched or treated with a bonding system

• Sprayed with water before cementation

• Prepared with a micro-etcher with aluminum oxide particles