nbsp; nbsp; nbsp; Precautions for wearing fixed orthodontic appliances: nbsp; nbsp; nbsp; 1. When first wearing the fixed orthodontic appliance, there may be slight pain in the teeth and oral mucosa, which generally subsides after one week of adaptation. If the appliance irritates the mucosa causing pain, a small piece of cotton can be used to cover it. nbsp; nbsp; nbsp; 2. If the orthodontic appliance becomes detached, contact your doctor as soon as possible to determine if an earlier follow-up visit is necessary. Bring the detached appliance to your follow-up appointment to give to your doctor. nbsp; nbsp; nbsp; 3. After wearing the orthodontic appliance, maintaining good oral hygiene is essential. Brush your teeth thoroughly after each meal to prevent gum inflammation, tooth demineralization (appearance of white spots on the surface), and cavities. nbsp; nbsp; nbsp; 4. After wearing the fixed orthodontic appliance, avoid eating foods that are too hard (such as those with bones, pits, or shells), too chewy, or sticky, as these can cause the orthodontic appliance to detach, affecting treatment outcomes and prolonging treatment time. nbsp; nbsp; nbsp; 5. Avoid strenuous exercise to prevent injury or detachment of the orthodontic appliance. nbsp; nbsp; nbsp;, porcelain fused to metal crowns; 6. Adhere to the scheduled appointments. If you cannot make it due to special reasons, re-schedule in advance, orthodontics. nbsp; nbsp; nbsp; 7. Follow your doctor's advice regarding wearing the orthodontic appliance and accessories without interruption to avoid affecting the results and prolonging treatment time. nbsp; nbsp; nbsp,, teeth whitening; 8. After the orthodontic treatment is completed, wear the retainer as instructed by your doctor to prevent recurrence. The duration of retention depends on the malocclusion situation, typically lasting around two years, but in some cases, lifelong retention may be required.