Elnailia, S. and Patrickb, D. 2022. Evaluation of the surface roughness of four different types of acrylic resin denture base materials: heat cure (HC), high impact heat cure (HIHC), heat cure clear (HCC), and clear chemical cure (CC). Part (1). Libyan Journal of Science &Technology. 11, 2 (Sep. 2022). DOI:https://doi.org/10.37376/ljst.v11i2.2415.