Hello, generally speaking, there will be slight discomfort after wearing the appliance for half a month to one month, such as chewing food pain, slurred speech and so on. This is a normal phenomenon. Don't worry. If you still feel uncomfortable for a long time, you need to consider several situations. First, you need to go to the hospital to adjust the arch wire every once in a while, which will cause temporary discomfort; Second, it is possible that the bracket is not suitable. I suggest you check it again.