Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective Study
Background: Failure to identify root canal variations (such as extra roots) leads to poor prognosis of endodontic therapy. The prevalence of the same should be known to the clinicians. Aim: To evaluate the prevalence of radix entomolaris (RE) and radix paramolaris (RP) and its anatomic variations in...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2024-12-01
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| Series: | Journal of Indian Academy of Oral Medicine and Radiology |
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| Online Access: | https://journals.lww.com/10.4103/jiaomr.jiaomr_200_24 |
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| author | Mousumi Biswas Dibyendu Mazumdar Siddhi Agarwala Kallol K. Saha Kaushik Dutta |
| author_facet | Mousumi Biswas Dibyendu Mazumdar Siddhi Agarwala Kallol K. Saha Kaushik Dutta |
| author_sort | Mousumi Biswas |
| collection | DOAJ |
| description | Background:
Failure to identify root canal variations (such as extra roots) leads to poor prognosis of endodontic therapy. The prevalence of the same should be known to the clinicians.
Aim:
To evaluate the prevalence of radix entomolaris (RE) and radix paramolaris (RP) and its anatomic variations in mandibular first and second molars in a tertiary care center in Kolkata, using cone-beam computed tomography (CBCT).
Materials and Methods:
Analysis of 305 CBCT scans (126 males and 179 females; mean age 24.72 ± 8.14 years) was done to evaluate 1220 molars (610 mandibular first molars (MFM) and 610 mandibular second molars (MSM)) to detect radix. Sex, unilateral/bilateral presentation, classification, root canal length, configuration, curvature, and inter-orifice distance were recorded. The results were analyzed with Chi-square test.
Result:
The overall prevalence of radix entomolaris was found to be 2.8% (n = 35), in mandibular first molars—5.4% (n = 33), in mandibular second molars—0.32% (n = 2); higher in females (n = 20) (P = 0.25). Nine scans showed unilateral occurrence, and 13 showed bilateral presentation (P = 0.26). The radix showed typically shorter roots, with root divergence and curvatures, and increased intra-orifice distance. All radices had Vertucci’s Type 1 configuration. Type A radix entomolaris was found to be most prevalent—60% (n = 21), followed by Type AC—20% (n = 7).
Conclusion:
The results of this study recommend modifying the access cavity preparation, using magnification, and encourage the use of advanced radiographic techniques like cone-beam computed tomography whenever radix is suspected. |
| format | Article |
| id | doaj-art-d15a6da5a19d4c1ebc45761cb3004943 |
| institution | Kabale University |
| issn | 0972-1363 0975-1572 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Indian Academy of Oral Medicine and Radiology |
| spelling | doaj-art-d15a6da5a19d4c1ebc45761cb30049432025-01-06T15:40:04ZengWolters Kluwer Medknow PublicationsJournal of Indian Academy of Oral Medicine and Radiology0972-13630975-15722024-12-0136439239610.4103/jiaomr.jiaomr_200_24Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective StudyMousumi BiswasDibyendu MazumdarSiddhi AgarwalaKallol K. SahaKaushik DuttaBackground: Failure to identify root canal variations (such as extra roots) leads to poor prognosis of endodontic therapy. The prevalence of the same should be known to the clinicians. Aim: To evaluate the prevalence of radix entomolaris (RE) and radix paramolaris (RP) and its anatomic variations in mandibular first and second molars in a tertiary care center in Kolkata, using cone-beam computed tomography (CBCT). Materials and Methods: Analysis of 305 CBCT scans (126 males and 179 females; mean age 24.72 ± 8.14 years) was done to evaluate 1220 molars (610 mandibular first molars (MFM) and 610 mandibular second molars (MSM)) to detect radix. Sex, unilateral/bilateral presentation, classification, root canal length, configuration, curvature, and inter-orifice distance were recorded. The results were analyzed with Chi-square test. Result: The overall prevalence of radix entomolaris was found to be 2.8% (n = 35), in mandibular first molars—5.4% (n = 33), in mandibular second molars—0.32% (n = 2); higher in females (n = 20) (P = 0.25). Nine scans showed unilateral occurrence, and 13 showed bilateral presentation (P = 0.26). The radix showed typically shorter roots, with root divergence and curvatures, and increased intra-orifice distance. All radices had Vertucci’s Type 1 configuration. Type A radix entomolaris was found to be most prevalent—60% (n = 21), followed by Type AC—20% (n = 7). Conclusion: The results of this study recommend modifying the access cavity preparation, using magnification, and encourage the use of advanced radiographic techniques like cone-beam computed tomography whenever radix is suspected.https://journals.lww.com/10.4103/jiaomr.jiaomr_200_24cone-beam computed tomographymandibular first molarmandibular second molarprevalenceradix entomolaris (re)radix paramolaris (rp) |
| spellingShingle | Mousumi Biswas Dibyendu Mazumdar Siddhi Agarwala Kallol K. Saha Kaushik Dutta Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective Study Journal of Indian Academy of Oral Medicine and Radiology cone-beam computed tomography mandibular first molar mandibular second molar prevalence radix entomolaris (re) radix paramolaris (rp) |
| title | Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective Study |
| title_full | Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective Study |
| title_fullStr | Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective Study |
| title_full_unstemmed | Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective Study |
| title_short | Cone-Beam Computed Tomographic Evaluation of Prevalence and Internal Dental Morphology of Radix Entomolaris and Paramolaris in Mandibular First and Second Molars—A Retrospective Study |
| title_sort | cone beam computed tomographic evaluation of prevalence and internal dental morphology of radix entomolaris and paramolaris in mandibular first and second molars a retrospective study |
| topic | cone-beam computed tomography mandibular first molar mandibular second molar prevalence radix entomolaris (re) radix paramolaris (rp) |
| url | https://journals.lww.com/10.4103/jiaomr.jiaomr_200_24 |
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