Skip to main content

Table 1 Summary of the published case reports on the root canal morphology of the mandibular first premolar

From: Mandibular first premolar with five root canals: a case report

Ref no. Age & Sex No. of canals Features of the root canals type Symmetry
or not
[22] 24 years old, male C-shape a deep lingual groove C-shape (Category III) TYPE 1 YES
[23] 19 years old, female 3 MB canal and DB canal and a-mid canal TYPE 2 N/A
[24] 35 years old, female 3 MB canal and DB canal and lingual canal TYPE 4 N/A
[25] 24 years old, male 4 MB canal, ML canal,
DB canal, DL canal
TYPE 3 N/A
[19] 48 years old, female 4 MB canal, ML canal,
DB canal, DL canal
TYPE 3 N/A