Composites with Nano fillers reinforced by polymer structures are gaining popularity in the field of prosthodontic. Composite materials are being developed to meet the needs of patients, such as heat cure acrylic resins, that used so much in the field of prosthodontic. To evaluate the flexure strength of heat-cure acrylic resin reinforcement with Nano aluminum oxide (Al2O3) after polishing with various abrasive materials. A total of seventy rectangular specimens of heat cure acrylic resin with dimensions (65 mm length x 10 mm diameter x 3 mm thickness) Samples were separated into main seven groups classifications based on the addition of Nano Al2O3 and surface’s polishing with different abrasive materials. Each group have (10) specimens. The highest mean value of flexure strength was obtained in group (B) (87, while the lowest value was obtained in group (F) (56.9). It concluded that the flexure strength was decreased in groups (F and G) of heat-cured resin polished with diamond, while it was increased in groups (B and C) polished with pumice, followed by the control group(A), and then by groups (D and E) that polished with colloidal.

In order to obtain the desired outcomes, nanotechnology employs approaches to control shape, size, and texture of elements in the necessary nano scale. It was previously used primarily in the areas of substance chemical productions and physics; however this has changed through the advancement of new technologies. Over time, biological scientists became aware of its numerous benefits and investigated them in their respective fields. To assess current knowledge about nanocomposites and their applications in prosthetic dental technology. On this topic, an electronic systematic review was conducted in various databases (Google Scholar research, Science Direct reports, PubMed studies, and Web of Science data), as well as a hand search of the scientific literature. From 2014 to 2022, published work was collected, analysed, and relevant articles were chosen for inclusion in this review. Nanocomposites and their applications in prosthetic dental technology have been reported in several studies. More than 36 papers were chosen for this review based on their applicability. The findings suggest that current knowledge was adequate to recommend nanocomposites and their applications in prosthetic dental technology for routine laboratory use, with improvements in each of the current nano materials and procedures for prosthetic dental technology. Because of their physical and chemical properties, polymer nanocomposites were suitable for prosthetic restorations; however, careful processing methods, nano materials, laboratory skill, and a strict protocol for prosthetic restoration are required to improve the mechanical and physical properties.