Elgtlawi, Dr.Mohamed, Dr.Amel M Saleh, and Mr.Omar O Elaogal. 2020. “The Effects of Adding Zirconium Oxide Micro-Particles to High Impact Polymethyl Methacrylate on Some Mechanical Properties”. Libyan Journal of Dentistry 4 (2). https://doi.org/10.37376/ljd.v4i2.1792.