Green light whitening treatment

Your smile is often the first thing people notice when they meet you. So, the importance of having a healthy smile and aesthetically pleasing smile cannot be underestimated.

The need for an aesthetic smile has created a market for whitening toothpastes and procedures, but these can be damaging to tooth enamel or lead to cavities.

Many professional treatments utilise hydrogen peroxide-containing gels and blue light, to produce a chemical reaction that removes stains. While effective, this combination can break down enamel.

Researchers wanted to eliminate these side effects by utilising greenlight, as a safer alternative, to whiten and prevent cavities.

The process requires the creation of a thick mixture of bismuth oxychloride nanoparticles, copper oxide nanoparticles and sodium alginate. The teeth stuck to a slide were then evenly coated in the mixture as a control. Afterwards, the mixture was tested on teeth that had been stained with coffee, tea, blueberry juice and soy sauce.