Table 1. Mean (±SD) of dentine wear (μm) of the study groups (n=8 subjects).

GROUP	WEAR (mean ± SD)
G1 – 10% PA mouthrinse (pH 7.0)	1.17 a ±0.69
G2 – 10% PA mouthrinse (pH 3.0)	2.99 b ±1.15
G3 – 0.12% chlorhexidine mouthrinse (pH 7.0)	1.22 a ±0.25
G4 – No treatment	2.29 b ±1.13

*Mean values followed by distinct letters presented a statistically significant difference between the groups (repeated measures of ANOVA and LSD Fisher’s Test, p<0.05).