Fig. 6.

Lubrication depends on the perturbation to the structural softness of the salivary conditioning films by saliva substitutes. Correlation between different lubricating properties of saliva substitutes and with the perturbation caused to the SCF; Relief_max vs. Relief_median (a), relief period vs. relief (b), relief before and after rehydration (c), relief period before and after rehydration (d), relief vs. protein adsorption after treatment with saliva substitutes (e) and relief period vs. structural softness of the S-SCF after second perfusion with saliva (f). For every graph, the Pearson’s correlation coefficient ‘r’ has been visualized