CHINDAM HARITHA1 , MAHENDRANADH REDDY2 , MAHADEV SHASTRY3 , VENKAT ADITYA4 2026. COMPARISON OF THE SURFACE ROUGHNESS OF REFRACTORYCAST INVESTMENT MATERIAL BEFORE AND AFTER TREATMENTWITH WAX, HARDENING AGENTS- AN IN-VITRO STUDY. International Journal of Pharmacy with Medical Sciences. 6, 2 (May 2026). DOI:https://doi.org/10.64751/.