But they could potentially cause discomfort and should not operate at the same time. Some OTC kits include a bendable mouthpiece. These perform better than one particular-measurement-fits-all trays. The bleaching gels that are available in these kits aren’t as strong as those you get from the Professional. Likely dangers and https://bookmarkmiracle.com/story18411690/the-basic-principles-of-teeth-whitening-south-africa