Gruber, Y. L.; Bakaus, T. E.; Bittencourt, B. F.; Gomes, J. C. .; Reis, A.; Gomes, G. M. Effect of Surface Treatments on Repair Strength, Roughness and Morphology in Aged Metal-Free Crowns. Braz. J. Oral Sci. 2020, 19, e206155.