I finally got courage to remove all my root canalled teeth, 5 upper teeth and 2 lower teeth,

needless to say, I need a denture in the rest of my life

. Now I have a confused question. My dentist find a cavity in one of my rest upper molar, at first we both agree to fill it with gold, but then I realize that my future denture is going to clasped with that molar, and I heard two different metal can produce those electric shock in your mouth,which sounds really scaring. I want to ask Bryanna, do you have any patient ever has such experience, I mean metal denture wrapped around gold fillings and is fine with it? Thank you very much!
In addition, I'm planning to have a titanium or vitallium based denture, because the valplast one I'm wearing now does feel good,it becomes rough very quickly. Do you think titanium denture is biocompatible? Thanks!