Table 1: Analytical statistics in different groups and their areas.

Groups Areas Mean score Standard deviation Mean score (total) value Nd:YAG laser Coronal 6.10 2.37 7.05 0.00 Middle 7.30 1.06 Apical 7.76 0.45 17% EDTA Coronal 1.20 0.43 1.33 0.00 Middle 1.14 0.30 Apical 1.66 1.02 5% Maleic acid Coronal 1.06 0.21 1.62 0.00 Middle 1.14 0.30 Apical 2.66 2.01 Control Coronal 8.00 0.00 7.86 0.05 Middle 8.00 0.00 Apical 7.60 0.41