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← HistoryWhich outcome risks the integrity of pietra dura inlay when daily temperature fluctuations occur?
A)Material creep within the structure
B)Dissimilar solid thermal expansion✓
C)Formation of undesirable intercalation compounds
D)Triboelectric discharging around inlays
💡 Explanation
Differential expansion arises because stone and matrix thermally respond as dissimilar solids when the coefficient of thermal expansion values differ, therefore tension stresses grow rather than stay minimal inducing microfracturing and potential deboning because expansion/contraction mismatches occur.
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