Item Type: Invisible Braces for Adults Color: Transparent Age: Adult Material: TPU Phase: Phase I (D1), Phase II (D2), Phase III (D3) Features: Corrects mild crowding, and uneven teeth. Improves orthodontic relapse. Orthodontics for adults. Corrects luxation of adult teeth. Three stages of product use: The first stage (D1): soft; adapt for a few minutes when first used, use 12 hours a day after adaptation, usage time 1-2 months; The second stage (D2): medium elastic hardness, suitable for mild to moderate teeth, inconspicuous, can be used directly, usage time is 2-3 months. Step 3 (D3): A stiffer material that is suitable for further aligning teeth or used as a retainer to limit tooth movement, use for 3-6 months. Instructions for use: Allow yourself to adapt for a while, such as 5-10 minutes; If you feel uncomfortable, you can take it off first, rest, and then put it on again; Do not bite too hard at the beginning, slowly increase the strength of the bite; Use 1-2 hours a day after adaptation, and then extend the usage time. How to wear: Align point A of the appliance upwards Put the appliance in your mouth Keep your tongue in a natural position Bite your upper and lower teeth together and continue to breathe through your nose