What You Should Be Aware Of Before Your Dentist Gets You Braces The modern method of having braces installed differs entirely from the traditional way. The actual fitting hardly ever hurts, but the pressure against your teeth and the new sensation will lead to arching and some soreness. The pain you experience will be on your gums and lips, but this is mostly because your mouth is not used to the new elements. If everything goes as premeditated; you should have the pain going away after some weeks. If the pain persist, you should go back to your tooth doctor and let them know.