Ch. 45 Dental Cements Flashcards
(32 cards)
_____________ cement gives off an exothermic reaction and must be mixed on a cool glass slab.
Zinc phosphate
When using this material the tooth must be free of all plaque and debris and be etched or treated with a bonding agent.
Composite resin cement
When mixing cements, always dispense the _________ first to minimize evaporation.
Powder
When using glass ionomer in premeasure capsules they are triturated to eliminate mixing, are more convenient, and produces _____________ results.
Consistent
When preparations a tooth for a composite restoration, etch the dentin and enamel for 15 seconds, rinse for 30 seconds, then keep the dentin ________________ before applying bonding agent.
Slightly moist
Stringy and breaking about 1 inch from the slab is the current consistency for ________________ cement.
Zinc phosphate
___________ is a type of dental cement that is used as an adhesive for permanent indirect restoration.
Luting
Polycarboxylate cement is less ______________ to the pulp then zinc phosphate cement.
Irritating
What is the best way to mix dental cements?
Following the manufacture’s instructions
______________ cement inhibits recurrent decay.
Glass ionomer
When removing excess cement from an indirect restoration use an explore, make sure fulcrum is firm, and move instruments ( explorer ) in a ________________ direction.
Horizontal
The provisional restoration should be lined with ______________ cement when being placed for a temporary coverage.
Zinc oxide-eugenol ( ZOE )
What does zinc phosphate require when using it as a base?
The uses of a liner, before placed.
The ___________ would begin if there were a delay between mixing a luting material and placing the indirect restoration.
Initial setting
The ____________ cement is preferred for cementation of ceramic veneers.
Composite resin
What can influence the cementing procedure?
Mixing time, temperature humidity and powder to liquid ratio
When mixing glass ionomer, what could you do to increase the working time?
Mix on a glass slab
Polycarboxylate cement should appear __________ once setting has impacted.
Glossy
______________ cement is acidic and irritating to the pulp.
Zinc phosphate
What type of cement is used when placing a provisional crown?
Temporary cement
Why is it important to make sure all excess cement is removed from the crown after it has been seated.
Leaving excess cement can irritate the area and cause inflammation
_______________ and ____________ cements can be light cured.
Glass ionomer and composite resin
Before cementing a porcelain crown, the interior of the crown should be _________________.
Roughened using air abrasion
Glass ionomer cements and zinc oxide-eugenol (ZOE) cements are versatile and ______________ irritating to the pulp.
The least
