The thought of getting braces is scary, to add on to it, there is also some level of pain that one should be ready to deal with. The actual fitting hardly ever hurts, but the pressure against your teeth and the new sensation will lead to arching and some soreness. You might feel the pain on your lips and gums, but that is because your mouth is not used to the plastic or metal tissues. However, the pain should not last for a long time, in fact, it should go away within the first few weeks. If the pain persist, you should go back to your tooth doctor and let them know.