Analysis of Cause of Endodontic Failure of C-Shaped Root Canals

Table 1

Various factors associated with C-shaped root canals.

	Total, (%)	Fisher’s exact test significance
Sex
Male	19 (45.2)
Female	23 (54.8)
Age
20–29	11 (26.2)
30–39	17 (40.5)
40–49	7 (16.6)
50–59	6 (14.3)
60–	1 (2.4)
Tooth type
Mandibular left second molar	23 (54.7)
Mandibular right second molar	15 (35.7)
Maxillary left second molar	1 (2.4)
Maxillary right second molar	2 (4.8)
Maxillary right first molar	1 (2.4)
Periodontal probing depths
<3 mm	25 (59.5)
4–6 mm	6 (14.3)
>7 mm	11 (26.2)
Lesion size (diameter)
<2 mm	15 (35.7)
2–5 mm	21 (50.0)
>5 mm	6 (14.3)