What is the typical range for the linear coefficient of thermal expansion in metals used for metal-ceramic restorations?

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11.5 to 12.5 × 10⁻⁶ per °C10.5 to 11.5 × 10⁻⁶ per °C13.5 to 14.5 × 10⁻⁶ per °C16.5 to 17.5 × 10⁻⁶ per °C

Explanation

The linear coefficient of thermal expansion for metals used in metal-ceramic restorations generally falls between 11.5 and 12.5 × 10⁻⁶ per °C, ensuring compatibility with the ceramic material.