My lower partials do not fit properly. I have gouges inside bottom gums where the partials are too "long". This happens immediately upon insertion, without chewing! The dentist said I needed to develope callouses and to return in two weeks to see where blisters might have form to show where they need adjusting! Oh my gosh they expect me to endure this pain for two weeks when I cannot tolerate a few minutes. And forget about chewing anything...agony! Please advice