Q. Hello Dr Caplan. I am due to have my teeth straightened with Invisalign braces. As I don’t have enough room in my mouth my orthodontist is going to drill a tiny amount of enamel away between each tooth. I was worried about this as I always thought damaging the enamel in any way was a bad thing – but he has advised me this won’t cause me any sentitivity and the drilled areas will harden again over time, and actually become harder than before the treatment. I’m very unsure about this – can you please let me know what your opinion is? Thank you.