In as much as you might not want to hear this, getting these braces could lead to some pain. 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. If everything goes as premeditated; you should have the pain going away after some weeks. If this is not the case, you should inform your dentist.