I have spoken to my dentist about it and he said there are 2 options, a six month fixed brace that's £4000, or a gum shield you have to wear for 12 hours a day for a year which £1000. The gum shield one requires them to file each side of every tooth down a bit to make room the teeth to move back into line.
Has anyone had any of these options? Or are there any more options?