DENTURE-SUPPORTING TISSUES 1 FINITE-ELEMENT-ANALYSIS 1 HISTOPATHOLOGICAL CHANGES 1 IMPLANT-RETAINED OVERDENTURES 1 INTERSTITIAL FLUID PRESSURE PALATAL MASTICATORY MUCOSA 1 PERIODONTAL-LIGAMENT 1 PRESSURE-PAIN THRESHOLD 1 RESIDUAL RIDGE RESORPTION 1 STRESS-DISTRIBUTION 1 hydrostatic pressure 1 hyperelastic 1 oral mucosa 1 pressure-pain threshold 1 residual ridge resorption 1 viscoelastic 1