Table 1 Distribution of filling voids: Mean values and standard deviations in the apical 6 mm of the resected root

Total volume of apical 3 mm (mm³)

1.55 ± 0.96

1.46 ± 0.74

1.43 ± 0.70

Total volume of filling of apical 3 mm (mm³)

1.54 ± 0.95

1.45 ± 0.74

1.41 ± 0.70

Total volume of voids of apical 3 mm (mm³)

0.0077 ± 0.011^a

0.0062 ± 0.041^a

0.019 ± 0.011^b

Total volume of apical 3-6 mm (mm³)

3.13 ± 1.57

2.75 ± 1.65

2.35 ± 0.89

Total volume of filling of apical 3–6 mm (mm³)

3.10 ± 1.53

2.72 ± 1.65

2.32 ± 0.97

Total volume of voids of apical 3–6 mm (mm³)

0.039 ± 0.045^a

0.032 ± 0.019^a

0.026 ± 0.024^b

Total % of vov in apical 0–3 mm

0.39 ± 0.30

0.48 ± 0.32

1.45 ± 0.61

Total % of vov in apical 3–6 mm

1.12 ± 0.73

1.36 ± 1.01

1.12 ± 0.69

Total % of vov

0.89 ± 0.55

1.07 ± 0.71

1.25 ± 0.59