Surface Roughness of Different Composite Resins After Application of 15% Carbamide Peroxide and Brushing with Toothpaste: An In-Vitro Study - Jafari Navimipour, Elmira; Ajami, Amir Ahmad; Savadi Oskoee, Siavash; Abed Kahnamoui, Mehdi; Bahari, Mahmoud; Ebrahimi Chaharom, Mohammad Esmaeel; Shojaei, Seyedeh Maryam (Frontiers in Dentistry, 2019)