What types of teeth bleaching trays come with over-the-counter teeth whitening kits?
As an alternative to a custom bleaching tray like that which a dentist fabricates, most over-the-counter teeth whitening kits make use of what is commonly referred to as a stock “boil and bite” tray. These trays are placed in warm water so they become softened. While still soft the trays are placed onto and then pushed over the person’s teeth so to be molded by their shape.
