BHAT, M. M.; AHMAD, A.; SARTAJ, M. COMPARATIVE EVALUATION OF SURFACE ROUGHNESS OF VARIOUS NANOHYBRID COMPOSITES AFTER MULTI-STEP POLISHING SYSTEMS USING SCANNING ELECTRON MICROSCOPY AND SURFACE PROFILOMETRY: AN IN VITRO STUDY. International Journal of Pharmaceutical and Biological Science Archive, v. 7, n. 2, 30 abr. 2019.