But they can result in discomfort and will not function likewise. Some OTC kits have a bendable mouthpiece. These get the job done better than one particular-measurement-fits-all trays. The bleaching gels that come in these kits aren’t as sturdy as those you receive from the Professional. Mouthpiece trays. With dentist-supervised https://lukaswevio.wikijournalist.com/4490117/little_known_facts_about_teeth_whitening