A Ismail, S. and T Suliman, R. 2013. Evaluation of the Surface Roughness for Three Different Types of Composite Resin Materials Using (Sof–Lex) Finishing and Polishing Systems: A Comparative Study. Al-Rafidain Dental Journal. 13, 2 (Apr. 2013), 221–227. DOI:https://doi.org/10.33899/rden.2013.84776.