Of the following materials,which has the closest coefficient of expansion to tooth structure?

Question

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Ceramic has a coefficient of thermal expansion that is very close to that of natural tooth structure, making it an ideal material for dental restorations. Amalgam, filled polymers, and composite resins have coefficients of thermal expansion that are significantly different from that of tooth structure, which can lead to issues such as marginal leakage, sensitivity, and fracture over time.

Of the Following Materials,which Has the Closest Coefficient of Expansion