Existing teeth whitening treatments use hydrogen peroxide-based gels and blue light that produces reactive oxygen species but can damage the enamel. Researchers from China have created a new treatment to remove the cavities without damaging the enamel. Treatment Researchers have developed the hydrogel by mixing copper oxide nanoparticles, sodium alginate, and oxychloride nanoparticles. The mixture was coated onto teeth fixed on glass slides. Calcium chloride was sprayed onto the hydrogel coating, and the reaction was activated with a green light.
Key findings The treatment brightens the teeth without damaging the enamel. The treatment killed 94% of bacteria in the biofilms. The treatment prevented the formation of moderate and deep cavities in the teeth of mice. Researchers have suggested that the treatment is safe for tooth-whitening and prevents cavity formation without damaging the…
