Teeth whitening is one of the most requested cosmetic dental treatments, but many people hesitate because of tooth sensitivity. If cold drinks, sweets, or brushing already cause discomfort, it’s natural to wonder whether whitening trays will make things worse. The good news is that whitening trays can still be used safely for people with sensitive teeth, when the right approach is used. The key factors include gel concentration, treatment duration, and whether the trays are p