The movable aligner is a class of aligners commonly used in orthodontic treatment, mostly for children or adolescents in the period of replacement teeth, can also be used as an accessory to fixed aligners, now the precautions are introduced as follows: 1, must be worn according to the time required by the doctor Because the movable aligner is the patient can take it off, its wearing time patients can freely arrange for themselves (that is, the patient can not wear it if they want, unlike fixed aligners There is no way for the patient to remove them). When the patient is younger and has poor self-control, wearing the aligner at the time required by the doctor becomes a very serious problem, which requires the patient’s family to try to restrain and urge the child to wear it on time, otherwise the treatment effect will be greatly reduced. Specific wearing time, different orthodontic requirements are different, some require all-day wear, some require night wear, some require meal wear, and some require meal take off, the specific doctor’s will shall prevail. 2, movable aligners cleaning Every day we just use a toothbrush to clean it like brushing teeth, but do not use warm or hot water to soak, rinse, because most movable aligners are made of plastic, it will be deformed after encountering hot water, resulting in aligners can not be worn. 3, usually do not adjust or break the above wire, spring, snap ring because this will cause changes in the strength of the aligner, such as loosening or falling off, tooth pain, aligner in place difficulty please contact the doctor for treatment. Patients need to add force by themselves must add force according to the frequency required by the doctor, the need for patients to wear a rubber band should also be replaced by a new rubber band as required by the doctor (generally replaced once every two days), do not increase the number of rubber bands or change the frequency of force, the force is too large or too small will cause damage to the teeth. 4, usually when not in use, you can put the movable aligner in water (cold water), can effectively prevent the odor.