Table 3.

The experimental groups

Group	Treatment
N1, S1	distilled water
N2, S2	35% phosphoric acid 30 s
N3, S3	5% NaClO solution 60 s
N4, S4	15% EDTA gel 60 s
N5, S5	15% EDTA gel 60 s, 5% NaClO solution 60 s
N6, S6	15% EDTA gel 60 s, 10% NaClO solution 60 s
N7, S7	35% phosphoric acid 30 s, 5% NaClO solution 60 s
N8, S8	35% phosphoric acid 30 s, 10% NaClO solution 60 s

Note: N: Normal dentine; S: Sclerotic dentine