Flexible dentures, sometimes called soft dentures, offer a solution to the pain and discomfort caused by the rubbing of hard acrylic against the soft tissue of your gums. They are called this because it is the inner lining that is soft. Standard dentures can be adjusted to have a softer, flexible lining but withflexible dentures, the flexible resin is non-porous so that bacteria cannot thrive on them. This resin is longer lasting than normal dentures.
Instead of being held in place with small metal clips they attach to your mouth by hooking into the undercut of the gum ridge. It is the flexible resin part of the denture that hooks into the undercut of the gum ridge reducing the friction between your gums and the hard base of the denture. By hooking into the gum ridge rather than clipping over teeth movement is reduced when chewing tough foods and because there is no adhesive required.
Flexible dentures can adjust to the idiosyncrasies of your mouth with more ease - rather than rubbing up against any irregular ridges in your mouth and causing blisters and sores.