Q. I have just turned 28 and had metal braces followed by retainer in the form of metal on the rear of my front teeth.everyting worked perfect and my teeth are perfect apart from the front 2 teeth have moved apart again. not back to how they started but enough of a gap for me to now want a brace again. i am currently wit a private dentist but am about to apply to an nhs one. ow much will i have to pay approx if i am with an nhs dentist, but i dont think i qualify for not paying anything as i am over 18 and in work. But if i am wit an nhs dentist instead of private one will it be cheaper or the same as i dont qualify. not really sure how it works, thankyou in anticipation of your time and help.