Specification:<br> <br> Suitable For: Phase I + Phase II+Phase III<br> <br> Type: Teeth Tray<br> <br> Color: Transparent/Blue<br> <br> Material: Silicone<br> <br> How to distinguish the three stages: by the number on the package<br> <br> Transparent stage 1-YG21905-2/ Transparent stage 2-YG21905-4/ Transparent stage 3-YG21905-6 Blue stage 1-YG21905-1/Blue stage 2-YG21905-3/Blue Stage 3-YG21905-5<br> <br> Package Contents:<br> <br> 1 x Teeth Retainer or 1 set(3pcs)Teeth Retainer<br> <br> Function:<br> <br> (It is recommended to buy in three stages (D1 D2 D3), When used in this way, the effect will be faster and more obvious )<br> <br> Phase 1: correcting the tooth surface Hardness: soft Service life: 1-2 months Function: Used to accommodate orthotics and primary orthotics Phase 2: root correction Hardness: Moderate Service life: 2-3 months Function: to further adapt to orthotics and enhance the correction effect Phase 3: consolidation and shaping Hardness: Hard Service life: 3-6 months Function: Increase correction strength for later shaping.<br> <br> Features:<br> <br> Made of food grade silicone material, which is non-toxic, oddless, healthy and safe.<br> <br> No color change, it will maintain the original color and not turn to yellow, whenever how long you use it.<br> <br> Groove design can fit the surface of the teeth well to allow for normal breathing and protection of your teeth during exercise.<br> <br> It can reach to rear molars, to provide complete protection.Invisible color, you can witness tooth change process.<br> <br> It can improve facial shape to promote the normal development of jaw.<br> <br> Can be used as a late addition maintaining for some tooth problems.<br> <br> Instructions for use:<br> <br> 1. At the initial stage of wearing, the wearing time should not be too long. It can be gradually increased and gradually adjusted.<br> <br> 2. If you feel discomfort or pain in your teeth, take it down, have a rest, and then wear it again.<br> <br> 3. Don't bite your teeth hard at first. After adaptation, the occlusal force can be increased.<br> <br> 4. Wear it for 1~2 hours during the day after adaptation. After the teeth get used to the braces, the use time can be increased.<br> <br> 5.Tooth orthodontic is a long process, please be patient for the effect. Do not suspect their effect, they need time to proof themself