Hi good morning , dentures
should change every 5-6 years, if you wear for long time they will loose the ridge.(ridge will go down) fitting will not come perfectly.
If you can go for 2 implant supported overdentures. Dentures will not not move. They will fix 2 implants
in lower jaw wait for 3-4 months, then they will attach to the dentures. Its like pen &cap.
Ask your dentist
for proper help.