After the braces brackets fall off, it is recommended to bond as soon as possible, the sooner the better, try not to exceed 2-4 weeks, the specific time can be arranged according to their own situation and doctor’s time. After the braces brackets fall off, if they are not glued back in time, it will cause other teeth to move with the cooperation of brackets and wires, while the brackets fall off teeth without any force will not move, thus causing the orthodontic asynchrony, which will not only affect the orthodontic effect, but also prolong the orthodontic time. It is recommended that patients pay attention to maintaining oral hygiene after wearing braces and brush their teeth after each meal to avoid gum redness and swelling, tooth demineralization (white spots on the surface) and decay. In addition, after wearing braces for the first time, patients should not eat foods that are too hard, too tough, sticky, or high in sugar, so as not to cause the loss of the aligner device, which will affect the treatment effect and prolong the treatment time. Also pay attention to regular follow-up appointments. Patients must wear retainers as instructed by the doctor after orthodontic treatment is completed to avoid relapse. The retention time depends on the mis (tooth fit), generally kept for about 2 years, special cases may need to last a lifetime.