Fig. 5.
Dry mouth relief provided by saliva substitutes upon rehydration with water. Relief (a) and relief period (b) after rehydration obtained for different natural saliva and saliva substitutes on the tongue-enamel friction system. Relief after rehydration was obtained based on both the maximum (Rmax,r) and median (Rmedian,r) COF. Error bars represent standard deviations over triplicate measurements. Substances tested: demineralized water (DW), unstimulated and stimulated human whole saliva (UWS and SWS respectively), Saliva Orthana (SO), Dentaid Xeros (DX), BioXtra (BX), Biotène (BT), Gum Hydral (GH), Aldiamed (ADM), Saliva Natura (SN), Glandosane (GDS), Aequasyal (AQ). $ shows significant differences (p < 0.05) to DW