Table 1 Mean Percentage of Volume (mean ± standard deviation) and of Covered Canal Surface Area of RFMs in different canal shape groups.

From: Microcomputed tomographic analysis of the efficiency of two retreatment techniques in removing root canal filling materials from mandibular incisors

 

PTN-CL

PTN-MNiTiH

Round-canal

Oval-canal

Round-canal

Oval-canal

Coronal 2/3 volume (%)

2.4 ± 0.95*

6.3 ± 1.6*

1.7 ± 1.4*

3.14 ± 3.2*

Apical volume (%)

18.5 ± 3.8

19.25 ± 4.8

3.7 ± 2.1

7.6 ± 3.8

Total volume (%)

9.1 ± 4.7*

21.2 ± 7.5*

4.5 ± 1.3*

16.8 ± 5.5*

Coronal 2/3 area (%)

8.6 ± 1.9#

24.5 ± 7.9#

6.6 ± 4.7#

11.7 ± 8.9#

Apical area (%)

10.7 ± 3.1

26.8 ± 4.7

7.4 ± 3.1

17.6 ± 9.2

Total area (%)

14.5 ± 3.5#

22 ± 2.7#

9.2 ± 2.6#

15.9 ± 4.2#

  1. *indicates a significant difference between different canal shape groups of the volume of RFMs (independent-samples t test, P < 0.05).
  2. #indicates a significant difference between different canal shape groups of the covered canal surface area of RFMs (independent-samples t test, P < 0.05).
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