Nadhum, N. S. and Al-Khafaji, A. H. (2014) “The effect of in office bleaching on surface roughness and micro-hardness of newly developed composite materials (In vitro study)”, Journal of Baghdad College of Dentistry, 26(2), pp. 24–29. Available at: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/445 (Accessed: 1 December 2024).