Abstract
In orthodontics treatment, scholars have tried to introduce nano antibacterial materials into the materials used in orthodontics to reduce the occurrence of enamel demineralization, caries and periodontitis. The experiment investigated the effect of adding titanium dioxide nanoparticles in different proportions on the flexural strength, compressive strength, surface hardness, tribological properties, adhesion properties, fluorine release properties and antibacterial properties of glass ionomer cement. The effect of water cement on orthodontics, the experiment added different proportions of titanium dioxide nanoparticles to traditional glass ion cement, which greatly improved the mechanical strength of glass ion cement, and significantly improved the antibacterial effect of glass ion cement, bending strength, compressive strength and surface hardness. The addition of titanium dioxide nanoparticles produced a significant antibacterial effect on Streptococcus mutants. Nano- TiO₂ glass ionomer cement has a significant effect on orthodontics, and the damage to patients' teeth is significantly lower, which is worthy of clinical popularization.
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