SH Hassan, S. 2016. Evaluation the Effect of Staining Agents on the Color Stability of Composite Resins that Polished at Different Interval Times (an in Vitro Study). Al-Rafidain Dental Journal. 16, 1 (Dec. 2016), 30–40. DOI:https://doi.org/10.33899/rden.2016.160863.