I had full mouth implants (77 yrs old) that were very successful, physically. Every time I eat I am left with food lining my upper and lower gums, above the implant. I cannot just swipe it away with my tongue or swish with liquid. I have to wipe it away with a toothbrush which I do not have access to when I'm eating out. My dentist is still working on this but says that further grinding down will weaken the hold on the actual teeth.