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Research Article

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

Table 2

Classification of C-shaped root canals.

C1C2C3C4TotalFisher’s exact test significance

Coronal level (%)19 (45.2)15 (35.7)7 (16.7)1 (2.4)42 (100)
Apical 3 mm level (%)15 (35.7)7 (16.7)19 (45.2)1 (2.4)42 (100)