1. Swaney AC, Paffenbarger GC, Caul HJ, Sweeney WT. American Dental Association Specification No.12, Guide to dental materials and devices. J Am Dent Assoc 1953; 46(1): 54-66.
2. Khalaf HA, Salman T. The influence of adding of modified ZrO2-TiO2 nanoparticles on certain physical and mechanical properties of heat polymerized acrylic resin. J Baghdad Coll Dent 2015; 27(3): 33-9.
3. Erdem B, Hunsicker RA, Simmons GW, Sudol ED, Dimonie VL, El-Aasser MS. XPS and FTIR surface characterization of TiO2 particles used in polymer encapsulation. Langmuir 2001; 17(9): 2664-9.
4. Matsuyama K, Mishima K. Preparation of poly(methyl methacrylate)-TiO2 nanoparticle composites by pseudo-dispersion polymerization of methyl methacrylate in supercritical CO2. J Supercrit Fluids 2009; 49(2): 256-64.
5. Ihab NS, Hassanen KA, Ali NA. Assessment of zirconium oxide nano-fillers incorporation and silanation on impact, tensile strength and color alteration of heat polymerized acrylic resin. J Bagh Coll Dentistry 2012; 24(4): 36-42.