My nail scraped across my tooth when I tried to tug an aligner off. Left on the attachment was a black mark from my black nail varnish! (haven't warn dark nail varnish since!)

I guess when the attachment is taken off the stains will go away with it?!
Also when I have finished with my aligners, I have to wear my last one full time for an extra month as a retainer. I have an orthodontist appointment halfway through that time. Will they take the attachments off then??