Whitening Tooth Strips: Effectiveness and Considerations The efficacy of whitening tooth strips can vary from person to person. They can be effective for some types of dental staining, but not all. Here’s what you need to know. External vs. Internal Dental Staining Whitening tooth strips may show noticeable results for extrinsic staining. This includes discoloration caused by habits like smoking, drinking coffee, or tea, where the pigments settle on the teeth’s surface. However, when it comes to intrinsic staining, such as from tetracycline or fluorosis, the effectiveness is often limited. For individuals seeking a brighter smile, understanding the type of... Learn more