Over-the-counter teeth whitening products often produce less-than-stable results. This is due in part to the fact that store-bought trays aren't customized to fit your teeth properly and are not nearly as effective as the products used by dentists. In addition, store-bought whitening trays may not fit properly and may leak the whitening solution, leading to gum irritation. When you're looking to make a major smile impact, an office-based teeth whitening procedure is the best option.
(https://dentist-santa-clarita.com/)