A Retrospective Study of Roots and Root Canal Morphology in Mandibular Premolars using Cone Beam Computed Tomography in Delhi-NCR
Introduction: The anatomical heterogeneity of mandibular premolars has always been considered an enigma and it makes them potentially prone to high rates of endodontic failure. Only few studies have discussed the potential role of Cone Beam Computed Tomography (CBCT) in the assessment of root m...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2021-07-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/15106/48413_CE[Ra1]_F[SK]_PF1(SC_RK)_PFA(SC_KM)_PN(KM).pdf |
| Summary: | Introduction: The anatomical heterogeneity of mandibular
premolars has always been considered an enigma and it makes
them potentially prone to high rates of endodontic failure. Only
few studies have discussed the potential role of Cone Beam
Computed Tomography (CBCT) in the assessment of root
morphology, canal configuration and their complex variations.
Aim: To investigate the number of roots and root canals along
with the canal configuration in mandibular premolars in the
Delhi-National Capital Region (NCR) population using CBCT
imaging.
Materials and Methods: The retrospective observational
study was conducted where 432 CBCT images of 108 patients
were acquired from different CBCT centres in Delhi-NCR region
to determine the anatomy and morphology of mandibular
premolars. The number of roots, root canals and their
configuration and its association with symmetry and gender
was evaluated. Pearson Chi-square test and Fisher’s-exact
test were used for statistical analysis.
Results: The mandibular first and second premolars reported
with single root in 94.9% and 98.1% cases, respectively.
Majority of 1st premolars displayed 2 canals (59.7%) whereas
2nd premolars exhibited single canal (58.3%) more frequently.
Type I configuration was most prevalent in both 1st premolar
(39.8%) and 2nd premolars (60.2%). Type V configuration was
significantly reported on the left in both mandibular 1st and
2nd premolars (13.9% and 4.6%), respectively. There was no
significant gender predilection observed for the morphology of
roots, root canal and canal configuration.
Conclusion: In Delhi-NCR, there was a high prevalence of
multiple canals and variable configurations in 1st premolars
whereas single root canal and Type I canal configuration were
more frequent in 2nd premolars with a significant bilateral
distribution. However, in both mandibular premolars there was
a slight inclination reported for multiple canals and variable
configurations towards left with no gender predilection. |
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| ISSN: | 2249-782X 0973-709X |