Table 1 Ratio of canal filled area by canal type and injection method.

From: Assessing the efficacy of jet dispenser versus direct syringe injection for calcium hydroxide paste placement in artificial root canals

 

Coronal 1/3

Middle 1/3

Apical 1/3

Overfilling

Total

Straight canal

 DS-U

0.85B [0.77–0.89]

0.98B [0.93–0.99]

0.00C [0.00–0.37]

0.00A [0.00–0.00]

0.79B [0.73–0.84]

 DS-B

0.99A [0.97–1.00]

0.86B [0.76–0.95]

0.76B [0.17–0.99]

0.00A [0.00–0.04]

0.91A [0.83–0.97]

 JD

0.87B [0.83–0.93]

1.00A [1.00–1.00]

1.00A [0.98–1.00]

0.14B [0.00–0.39]

0.93A [0.91–0.96]

 χ2

14.32

15.78

18.05

8.74

16.64

 p

0.001

< 0.001

< 0.001

0.013

< 0.001

Curved canal

 DS-U

0.85B [0.53–0.97]

0.00C [0.00–0.00]

0.00B [0.00–0.00]

0.00A [0.00–0.00]

0.50B [0.31–0.58]

 DS-B

0.96A [0.87–0.99]

0.97B [0.90–0.99]

0.41B [0.15–0.99]

0.00A [0.00–0.01]

0.90A [0.86–0.94]

 JD

0.76B [0.66–0.88]

1.00A [1.00–1.00]

1.00A [0.84–1.00]

0.01B [0.00–0.10]

0.84B [0.77–0.93]

 χ2

7.87

29.21

25.60

10.28

22.27

 P

0.02

< 0.001

< 0.001

0.006

< 0.001

  1. χ2, Chi square-value; p, p-value.
  2. Interquartile ranges (first quartile, third quartile) are in parentheses.
  3. Different capital letters indicate statistically significant difference between groups within the same area of interest (Kruskal–Wallis test, P < 0.05).
  4. ‘Ratio of canal filled area’ is the relative ratio of the filled area divided by the total area of simulated canal.
  5. DS-U direct syringe unbinding, DS-B direct syringe binding, JD jet dispenser.
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