Because the Thermal Expansion of a Restorative Material Usually Does

question 6

Multiple Choice

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 of oral fluids between the restoration and tooth.

• A) Statement 1 is correct; statement 2 is correct.
• B) Statement 1 is correct; statement 2 is incorrect.
• C) Statement 1 is incorrect; statement 2 is correct.
• D) Statement 1 is incorrect; statement 2 is incorrect.

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