Each removable aligner has special requirements for how and when it is worn, and will lose its orthodontic effect if it is not worn in conjunction. Patients should pay attention to the following points: 1, the first few days of wearing orthodontic appliances, will feel more things in the mouth, increased saliva, nausea, affect pronunciation. These symptoms are temporary, generally after 1 week of wear, gradually adapt. 2, some orthodontic appliances should be worn for as long as possible, please follow medical advice, eat, swim and strenuous exercise to remove. 3, orthotics are worn by hand and fully seated. It is strictly forbidden to manipulate the wire on the aligner without permission, forbidden to bite with the teeth to wear, tongue avoid flicking the aligner, so as not to cause damage to the teeth, aligner damage or aligner parts accidentally sucked and other accidents. 4, the new wear aligners, teeth may have pain, swelling and other uncomfortable symptoms, which is normal. If there are pressure points on the gums, teeth have severe pain and continue to intensify, contact the doctor as soon as possible, the aligners should be readjusted to avoid injury to the gums. 5, every day with toothpaste to carefully clean the aligners, when not in use placed in cool water, should avoid high temperature and pressure, aligners are strictly prohibited to disinfect themselves! 6, orthodontic appliance accidental damage or self-perceived abnormalities, please contact the attending physician.