TrayTimer is a MUST for anyone using clear aligners. Orthodontists will prescribe a minimum number of hours for each set of aligners to be worn, which can stretch over two weeks or more. Most wearers remove aligners multiple times per day when eating or drinking. This can make it difficult to remember how many hours aligners have been worn in total. TrayTimer tracks how long each set of aligners is worn, ensuring that they are worn long enough to get the best results. TrayTimer also sends an alert when it is time to change sets so that treatment time is as short as possible.