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Self-healing microcapsule incorporation into dental composite and flexural testing. (A) Representative SEM image of microcapsules, (B) flexural strength and (C) elastic modulus of composite containing microcapsules at different mass fractions (mean ± sd; n = 6). The cured specimens were immersed in water for 1 d and then tested. In each plot, values with dissimilar letters are significantly different from each other (p < 0.05).
