ABSTRACT

Objective: To evaluate the mechanical, biological, and antibacterial properties of copper doped calcium phosphate (Cu-CaP) modified dental composites.
Study Design: Cross-sectional study.
Place and Duration of Study: The study was carried out at the Department of Dental Materials, Khyber Medical University Peshawar, Pakistan from February 2023 to January 2024.
Methods: The process involved adding ethyl alcohol, distilled water, silane, and octyltriethoxysilane to powdered silica, refluxing, centrifuging, washing, and preparing copper oxide nanoparticles and copper doped calcium phosphate. Composite was prepared using TEGDMA i.e. Triethylene glycol dimethacrylate, camphor quinone, and dimethyl aminoethyl methacrylate.
Results: The microscopic image of Copper oxide nanoparticles were gathered together with agglomerated structure, irregular shapes having voids, and size range of 80 nm to 5 µm. The shape was irregular with void spaces and composition was confirmed with Edx analysis. Scanning electron microscope image of copper doped calcium phosphate, shows a build-up of nanometric needles over entire base, with asymmetrical form and translucent appearance, ranging from 10 nm to 50 nm. The Energy dispersive X-ray (EDX) analysis  demonstrated the presence of materials. The Fourier transmitted infrared microscopy of silica and salinized silica showed characteristics peaks of salinized silica at 1016 cm^-1 and 1439 cm^-1 with a main peak at 950 cm^-1, while the Fourier Transform Infrared Spectroscopy of calcium phosphate, 2%, 4%, and 6% copper doped calcium phosphate in dental composite showed charcateristics peak at 1020 cm^-1 which was due to increase of phosphates upon increasing copper doped calcium phosphate concentration. The compressive strength results of native dental composite and 2%, 4%, and 6% copper doped calcium phosphate in dental composite have values of  15.6 MPa, 18.72 MPa, 20.2 MPa, 49.15MPa while the flexural strength were of value 19.32MPa (dental composite) and that of 2%,4% and 6% have a value of  22.2MPa, 26.1MPa and 30.3MPa.The control group i.e. the dental composite had Vickers hardness of 14.55 MPa, while the experimental groups with 2% , 4%, and 6% copper doped calcium phosphate had values of  16.97 MPa, 21.49 MPa and  26.5 MPa respectively.
Conclusion: The Vickers’s hardness, flexural strength, and compressive strength of experimental dental composite increased with an increasing percentage of copper doped calcium phosphate added as a filler in a proportion of 2%, 4% and 6% with salinized silica in the dental composite.

Keywords: Control Groups, Copper, Flexural Strength, Phosphates, Silicon Dioxide. 

How to cite this: Ahmad W, Ahmad F, Babar BZ, Khan A, Khalid S, Ahmad SA. Effect of Copper Dope Calcium Phosphate on Mechanical Properties of Modified Dental Composites. Life and Science. 2024; 5(4): 528-535. doi: http://doi.org/10.37185/LnS.1.1.679