Can my gold crown be filed without causing any further damage?

Hi...i have a 22 carrot gold crown which is slightly chipped towards the front bottom ,its not even noticeable unless you look carefully,my question is can it be filed down? ,it just feels a bit rough as compared to the rest of the crown and its looks like a tiny kind of dent ...i don't want to remove it and replace it with another crown ....What are my options to repairing it? can it be filed down and polished ? i,m just a bit conscious about it ...Please help ... thanks