Is it painful to get braces? The honest answer is that braces do not hurt at all when they are applied to the teeth, so there is no reason to be anxious about the placement appointment. There will be mild soreness or discomfort after the orthodontic wire is engaged into the newly placed brackets, which may last for a few days to a week. Do teeth loosen with braces? If your teeth begin feeling a little loose, don't worry; this is normal! Your braces must first loosen your teeth to move them into the right position. Once your teeth have been repositioned, they will no longer be loose.