Dental materials ch2

dental-materials-ch2

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Question 1 of 1

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367882

120

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For which of the following materials do dimensional changes occur during setting as a result of a chemical reaction?

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367883

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How is the percentage of dimensional change measured?

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367884

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The volumetric dimensional change is equal to ___ times the linear dimensional change.

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367885

120

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Because the thermal expansion of a restorative material usually does not match that of the tooth structure, a differential expansion or contraction occurs that may result in leakage or oral fluids between the restoration and tooth.

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367886

120

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A new addition silicone impression material is tested for linear dimensional change upon setting. The result of -0.34% indicates that _____ took place within 24 hours after setting.

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367887

120

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The thermal coefficient of expansion uniform throughout the entire temperature range and is usually for liquids than solids.

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367888

120

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Which of the following restorative materials has a linear thermal coefficient of expansion that is lower then that of human teeth ?

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367889

120

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Which of the following dental restorative materials has a linear coefficient of thermal expansion closet to teeth

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367890

120

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What occurs as the result of a discrepancy between the linear thermal coefficient of expansion between teeth and the restorative material if there is no bonding?

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367891

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Percolation is thought to decrease with time following insertion of which of the following dental restorative materials?

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367892

120

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What is used as a measurement of heat transfer?

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367893

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Which of the following dental restorative materials has the greatest thermal conductivity?

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367894

120

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Dental materials ch2

Question 1 of 1

Time Left

For which of the following materials do dimensional changes occur during setting as a result of a chemical reaction?

Select the correct answer(s).

(0/0)

How is the percentage of dimensional change measured?

Select the correct answer(s).

(0/0)

The volumetric dimensional change is equal to ___ times the linear dimensional change.

Select the correct answer(s).

(0/0)

Because the thermal expansion of a restorative material usually does not match that of the tooth structure, a differential expansion or contraction occurs that may result in leakage or oral fluids between the restoration and tooth.

Select the correct answer(s).

(0/0)

A new addition silicone impression material is tested for linear dimensional change upon setting. The result of -0.34% indicates that _____ took place within 24 hours after setting.

Select the correct answer(s).

(0/0)

The thermal coefficient of expansion ______ uniform throughout the entire temperature range and is usually ______ for liquids than solids.

Select the correct answer(s).

(0/0)

Which of the following restorative materials has a linear thermal coefficient of expansion that is lower then that of human teeth ?

Select the correct answer(s).

(0/0)

Which of the following dental restorative materials has a linear coefficient of thermal expansion closet to teeth

Select the correct answer(s).

(0/0)

What occurs as the result of a discrepancy between the linear thermal coefficient of expansion between teeth and the restorative material if there is no bonding?

Select the correct answer(s).

(0/0)

Percolation is thought to decrease with time following insertion of which of the following dental restorative materials?

Select the correct answer(s).

(0/0)

What is used as a measurement of heat transfer?

Select the correct answer(s).

(0/0)

Which of the following dental restorative materials has the greatest thermal conductivity?

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Which of the following dental materials has a thermal conductivity that is most similar to tooth structure?

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Why are cavity varnishes and liners ineffective as thermal insulators?

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Which of the following is an electrical property of interest in the mouth?

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The thermal coefficient of expansion uniform throughout the entire temperature range and is usually for liquids than solids.