Relines and Rebases
This consists of adding new base material to the tissue side of a denture so it fits properly. Relining can restore your denture to a "like new fit". Your Denturist will need to take an impression inside your existing denture.
Relining affects only the fit of your denture and will not change the appearance or other aspects.
Relines are required when tissue changes occur due to resorption (shrinkage). Resorption can take months or years to happen.
It can be due to:
loss of weight
loss of teeth
loss of bone
disease or illness
Rebasing is usually done when the denture teeth have not worn out in comparison to the denture base material. It is a process of retrofitting dentures by replacing all of the acrylic denture base with new acrylic, which provides a stable denture without replacing the denture teeth.