Since the parts of invisible braces are practically unseen by the naked eyesight, the orthodontic treatment can proceed without other folks understanding about it. This kind of teeth straightening is quite suitable for those who are uncomfortable wearing metal parts in their mouth, and for those who find it too embarrassing at how old they are to still be wearing metal braces. What are the Advantages of Invisible Braces? Discreet: As the name suggests, invisible braces provide a discreet tooth straightening solution. This orthodontic system uses plastic aligners that are almost invisible when used through the entire full day.The researchers analyzed data from 47,000 advanced-lung cancer patients who received palliative radiation therapy – – designed to ease their symptoms however, not cure them – – between 2004 and 2012. One in five received chemotherapy at the same time also, even though guidelines suggest against such dual treatment, the researchers said. The researchers also discovered that almost one-third of the patients received a lot more than 25 radiation treatments, which is 10 a lot more than the recommended optimum number. Privately insured patients were 40 % much more likely than other patients to receive more than the recommended 15 radiation treatments. Overtreatment with radiation was higher among patients treated in community cancer centers also, which are clinics without links to academic organizations, the study found.