Item Type: Invisible braces for adults Color: transparent Age: Adult Material: TPU Phase: Phase I (D1), Phase II (D2), Phase III (D3) Features: 1. Correct crowded mild dentition, uneven teeth 2. Improve orthodontic retraction 3. Adult orthodontics 4. Correct adult teeth luxation Three stages of product use: The first stage (D1): soft; adapt for a few minutes at first use, use 12 hours a day after adaptation, use time 1-2 months; The second stage (D2): medium elastic hardness, suitable for mild and moderate teeth, insignificant, can be used directly, use time is 2-3 months. Stage 3 (D3): A stiffer material suitable for further aligning teeth or used as a retainer to limit tooth movement, use for 3-6 months. Instructions for use: 1. Allow yourself to adapt for a period of time, such as 5-10 minutes; 2. If you feel uncomfortable, you can take it off first, rest, and then put it back on; 3. Do not bite too hard at first, slowly increase the strength of the bite; 4. Use 1-2 hours a day after adaptation, and then extend the use time. How to wear: 1. Point the point A of the appliance upwards 2. Put the appliance in your mouth 3. Keep your tongue in a natural position 4. Bite your upper and lower teeth together and continue to breathe through your nose