Table 3. Pearson-correlations between adhesion parameters after protease pre-treatment (* = p < 0.05).

r = Coefficient of correlation	% Adhesion (trypsin)	% Adhesion (proteinase K)	Adhesion Index (trypsin)
Adhesion Index (proteinase K)	0.78*	0.87*	0.53*
Adhesion Index (trypsin)	0.8*	0.33