A smile can say more than a thousand words, the saying goes. Orthodontics can help improve the appearance and position of people's teeth and jawbones, for better functioning teeth and more attractive smiles. In recent years, dental correction orthodontics has used braces made from clear plastic polymer to good effect, but now they are hoping to improve on this with help from nanotechnology. A Spanish university has patented a breakthrough new process, producing smiles all round. Orthodontic treatment is carried out using braces, which generally fall into two broad categories: removable braces (or retainers), and fixed braces (or train tracks). They may be made of metal, white porcelain or clear plastic. Braces made from a clear plastic polymer have a better aesthetics when compared to metal braces, but they do come with their own set of problems, such as wear and tear within the mouth. This is where advances in nanotechnology could provide solutions.
Read more at: http://phys.org/news/2012-11-nanotechnology.html#jCp