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Dental General 212a8a8a

Linear coefficient of thermal expansion of composites is

A
1 ppm/ oC
B
40 ppm/ oC
C
260 ppm/ oC
D
1000 ppm/ oC
High-Yield Explanation
Linear coefficient of thermal expansion: TOOTH : 9-11 PPM/ oC  AMALGAM : 25  GOLD : 15   COMPOSITES : 40  GIC : 25  DENTAL WAXES : HIGHEST 260-600 PPM/ oC  Reference- Sturdevant 6th ed P:237

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