Table 4 Pulpal and periradicular diagnosis, number of evaluated canals, statistical data on the CAD, and p value.

From: Clinical determination of anatomical diameter in different dental groups correlating them with gender, age, tooth/canal and pulpoperiradicular diagnosis: an observational clinical study

Pulpal and periradicular diagnosis

n

CAD (× 10−2 mm)

p value##

Mean#

Standard deviation

Standard error

Confidence interval (95%)

LI

LS

TPNAAPDR*

320

24.88a

8.905

0.498

23.90

25.85

0.0001

TPNNAAPDR**

96

22.24b

8.172

0.834

20.58

23.90

TVPNAT***

168

21.55b

7.381

0.569

20.42

22.67

  1. #Same letters indicate no statistically significant difference.
  2. ##Value obtained through the Games–Howell test (p < 0.05).
  3. *Teeth with pulp necrosis and asymptomatic apical periodontitis diagnosed radiographically.
  4. **Teeth with pulp necrosis and no asymptomatic apical periodontitis diagnosed radiographically.
  5. ***Teeth with vital pulp and normal apical tissues.
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