: Patient when using denture with a sharp alveolar ridge occasionally produce pain during function such as mastication. This problem is caused when the forces transmitted to the underlying mucosa via the denture base. The purpose of this study is to discuss the use of soft denture liners under that part of the denture which contacts the mucosa overlying the residual alveolar ridge may afford relief to the patient. The method used library research with the descriptive and eksplorative approach. It can be concluded that (1) soft denture liners serve merely as aids in solving problem because of their viscoelastic properties, they act as shock absorbers and reduce and distribute the stresses on the denture – bearing tissue. (2) Their use for patient comfort. (3) can be use for treatment of the atrophic ridge, bony undercuts, bruxism, xerostomia and denture opposing natural teeth.