An effective whitening system must contain custom moldable trays for your teeth. The whitening gel is required to stay in contact with the surface of your teeth for a length of time in order to be effective. This is why whitening toothpastes, whitening sprays and swabs do not work. Without the use of a moldable bleaching tray you will see problematic and inconsistent results. For more details, please check the website: www.iteethwhite.com
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