It's recommended that you wear the aligners 20-22 hours a day. They should be removed for meals only, brushing and flossing before re-inserting the aligner. If not worn for up to 20-22 hours a day, the corrective process can be halted and within a few hours begin to reverse. It can then take several days for this process to start up again. Wearing your aligners 22 hours a day is a key to achieving your treatment goals, otherwise, you’re likely to prolong how long the aligners take to work and you won’t achieve your desired outcome as quickly. Each Clear Aligner needs to be worn for 12-14 days. Your dentist at Smile Centre India will advise you on the length of each stage of aligner treatment.