RDAEF WRITTEN REVIEW Questions with Complete Answers
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RDAEF2
Institution
RDAEF2
RDAEF WRITTEN REVIEW Questions with Complete Answers
The resin bonding agents from which type of bond to composite resin?
Chemical bond
Which of the following are classification of dental materials?
Preventative, Restorative, Theraputic
In general, __________ temperature and __________...
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RDAEF WRITTEN REVIEW Questions with
Complete Answers
The resin bonding agents from which type of bond to composite resin?
Chemical bond
Which of the following are classification of dental materials?
Preventative, Restorative, Theraputic
In general, __________ temperature and __________ humidity will accelerate the reaction of
materials.
High, high
What effects initial and final setting of dental material?
Moisture and pressure
What is an example of indirect restorative material?
Porcelain
Composite resin is an example of what type of restoration?
Direct restoration
Altering the set ratios of a material will do what?
Produce adverse results
Torque is a combination of which forces?
Compressive and tensile ( not shearing)
What does thermal expansion effect in dental materials?
Changes the volume and the length
What is it called when a dental material gives off heat?
Exothermic reaction
What is the cause of microleakage?
Poorly placed or sealed restorations, moisture control, expansion and contraction.
What is the term that best describes the thickness of thinness of a dental material?
Viscosity
Adhesion is a method of what type of retention?
Chemical retention
, What is the term that best describes the amount of time permitted to manipulate materials in the
mouth?
Working time
Merchant is also known as a ____________.
Conditioner
What type of acid is used during a bonding procedure?
Phosphoric acid
What appearance should be present after acid etching?
Chalky or frosty
The layer that interferes with the formation of a bond and thus should be removed is called?
Smear layer
How long should dent in be etched?
10-20 second or manufacturers instructions
After etching the dentinal surface is left _________
Moist
What does thermal expansion effect in dental materials?
Changes the volume and the length
The thin coating of insured resin found on the surface after polymerization is called ____________
Oxygen inhibited layer
The process of which a material can be cured with light or cure chemically with time is
called__________________
Duel cured
Type of acid used when preparing a porcelain restoration is?
Hydrofluoric acid
When an endo treated tooth has inadequate tooth structure remaining to restore a crown, what is
needed first?
Post, buildup
Dental Bonding provides _____________
Adheasion
Etchant gel is typically what % of phosphoric acid?
37%
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