Comparative Evaluation of Compressive Strength and Flexural Strength of Innovative Nanozirconia and Nanodiamond Filled Novel Resin Cement

Dual-cure resin cement is the material of choice for luting due to its high degree of conversion. This experiment studied and compared compressive strength and flexural strength of commercial dual-cure resin cement against nanozirconia and nanodiamond modified dual-cure resin cement. Since nanozirconia and nanodiamond particles have excellent mechanical properties, their incorporation into the resin cement was expected to enhance the properties of the resin cement. Three groups were prepared; commercial dual-cure resin cement as control group or group 1 and 10 vol% nanozirconia and 10 vol% nanodiamonds modified dual-cure resin cement as group 2 and group 3 experimental groups, respectively. Totally 30 samples were prepared with each group having 10 samples. 3-(Trimethoxysilyl) propyl methacrylate was the coupling agent used. Nanoparticles were added to coupling agent and mixed well on a glass slab, this was then mixed with the base of the commercial resin cement to obtain a homogenous mixture which is poured in acrylic molds and light cured at room temperature. Upon setting the samples were polished and tested for compressive strength and flexural strength using Universal Instron testing machine. Improvement in the compressive strength and flexural strength in experimental groups was noted compared to the control group.