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Aim: The study aimed to
assess the canal configuration of mandibular second molar roots and
their relationship to the mandibular canal using Cone-Beam Computed
Tomography (CBCT) in the Andhra Pradesh population.
Materials and Methods: One hundred and thirty-four CBCT-scans
of mandibular second molars were examined to determine Vertucci's canal
configurations, number of root canals, distance of mandibular nerve
canal from the root apices, degree of curvature of roots, incidence of
additional roots, and C-shaped canals. The relationship between age and
distance from the mandibular nerve canal to root apices was assessed
using the chi-square test, with a significance level set at p < 0.05.
Data analysis was conducted using IBM SPSS Version 23.0.
Results: Three root canals were identified in 94.7% of
mandibular second molars. In the mesial root, Type V was the most common
canal configuration, followed by Type IV, while Type I was predominant
in the distal root. The average curvature was 23.48°. C-shaped canal
configurations with merged roots were observed in 5.3% of patients. The
mean distance from the mesial root apex to the mandibular canal was 3.66
mm, whereas the distance from the distal root apex was 2.98 mm,
indicating that the distal root was closer to the mandibular canal than
the mesial root. Additionally, the mean distance was shorter in females
than in males. As age increased, the distance from the apices of the
root to the mandibular nerve canal also increased.
Conclusions: This study highlights anatomical variations of the
mandibular second molar crucial for successful endodontic treatments and
also helps in forensic analysis as root morphology can differ based on
geographic location, patient's race and gender. By understanding these
ethnic variations, clinicians can optimize treatment strategies for
better patient outcomes.
Key words:
mandibular second molars, canal curvature,
C-shaped root canal, inferior alveolar canal, root canal morphology,
radix
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Address of correspondence:
Vishnupur, Bhimavaram,
Kovvada, Andhra
Pradesh 534202, India
E-mail: harshitha.kantheti@vdc.edu.in
Copyright © 2025by The Editorial Council of The Acta
Stomatologica Naissi
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