Evaluation of the Root canal configuration of left
mandibular first molars using Cone Beam Computed
Materials And Methods: 95 Patients attending the OPD
of Oral Medicine and Radiology Department of K.D.
Dental College and hospital, Mathura were recruited in
the study. Study subjects comprised of patients having
carious lesions in the left permanent mandibular first
molar and requiring endodontic treatment. The written
consent was obtained from all the subjects. Intraoral
periapical X-rays of left mandibular first molars were
Results: In the present study, 95 left mandibular first
molars were evaluated by using CBCT and number of
canals in the mesial and distal root were evaluated.
Among 95 left mandibular first molars evaluated,
mesial roots had 2 distinct canals in 91.57% cases; 3
canals in 7.36% cases and only 1.05% cases had 1
In distal roots, 48.42% had 1 canal; 44.21% had 2
canals and only 7.36% had 3 canals.
In mesial root, type-4 canal configuration was
significantly higher as compared to vaious types of root
canal configurations seen
In distal root, the most common canal configuration i.e.
type-1 was compared with other types and p-value was
Conclusion: Cone Beam Computed Tomography scans
provides an excellent practical tool for immediate, nondestructive, non-invasive imaging option with the
potential to detect most anatomic variations, while
creating an accurate representation of external and
internal dental anatomy.
Keywords : root canal configuration, molar teeth, CBCT