Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography study
Abstract Background This study was using Cone beam computed tomography (CBCT) to examine the anatomical variations in mandibular second molars in an Egyptian sub-population. Methods A total of 350 CBCT images (215 females and 135 males, aged 15–65 years) of mandibular second molars were evaluated. S...
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| Format: | Article |
| Language: | English |
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BMC
2023-04-01
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| Series: | BMC Oral Health |
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| Online Access: | https://doi.org/10.1186/s12903-023-02939-7 |
| _version_ | 1797845757324165120 |
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| author | Shehabeldin Mohamed Saber Mohammed abou El Seoud Shaimaa Mohamed Abu el Sadat Nawar Naguib Nawar |
| author_facet | Shehabeldin Mohamed Saber Mohammed abou El Seoud Shaimaa Mohamed Abu el Sadat Nawar Naguib Nawar |
| author_sort | Shehabeldin Mohamed Saber |
| collection | DOAJ |
| description | Abstract Background This study was using Cone beam computed tomography (CBCT) to examine the anatomical variations in mandibular second molars in an Egyptian sub-population. Methods A total of 350 CBCT images (215 females and 135 males, aged 15–65 years) of mandibular second molars were evaluated. Samples were evaluated in terms of: number of roots, number of root canals, roots’ cross section as well as prevalence and configurations of C-shaped canals. Statistical analysis was done to highlight differences between different categories and their prevalence among genders (significance level was set at p < 0.05). Data were presented as frequency and percentage values and were analyzed using chi square test followed by pairwise comparisons utilizing multiple Fisher’s exact tests with Bonferroni correction. The significance level was set at p < 0.05 within all tests. Results Of the 350 mandibular second molars evaluated, 87.2% were non-C-shaped while 12.8% were C-shaped with no gender-based statistically significant differences (χ2 = 0.19, p = 0.656). Most samples had three root canals (80%) followed by two (16%), then one (3.2%), and finally four (0.8%) root canals. Among the non-C-shaped molars, presence of two roots was most common (83.4%) followed by presence of a single root (16.2%), and only one sample (0.2%) had three roots, and this had no correlation with gender (χ2 = 1.86, p = 0.431). In the mesial roots Type IV Vertucci was the most common configuration found (68.8%), while Type I was the most prevalent in the distal roots (91.8%). The long oval configuration was the most commonly found cross section in mesial roots while “oval” was the most prevalent in distal roots. Conclusion Egyptian sub-population shows highly variable morphological features in mandibular second molars, hence, CBCT is highly recommended on case-to-case conditions. |
| first_indexed | 2024-04-09T17:44:05Z |
| format | Article |
| id | doaj.art-985dae1e9a204509a1fc3d24ba33435d |
| institution | Directory Open Access Journal |
| issn | 1472-6831 |
| language | English |
| last_indexed | 2024-04-09T17:44:05Z |
| publishDate | 2023-04-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Oral Health |
| spelling | doaj.art-985dae1e9a204509a1fc3d24ba33435d2023-04-16T11:26:54ZengBMCBMC Oral Health1472-68312023-04-0123111010.1186/s12903-023-02939-7Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography studyShehabeldin Mohamed Saber0Mohammed abou El Seoud1Shaimaa Mohamed Abu el Sadat2Nawar Naguib Nawar3Department of Endodontics, Faculty of Dentistry, The British University in Egypt (BUE)Department of Endodontics, Faculty of Dentistry, The British University in Egypt (BUE)Department of Oral and Maxillofacial Radiology, Ain Shams UniversityDepartment of Endodontics, Faculty of Dentistry, The British University in Egypt (BUE)Abstract Background This study was using Cone beam computed tomography (CBCT) to examine the anatomical variations in mandibular second molars in an Egyptian sub-population. Methods A total of 350 CBCT images (215 females and 135 males, aged 15–65 years) of mandibular second molars were evaluated. Samples were evaluated in terms of: number of roots, number of root canals, roots’ cross section as well as prevalence and configurations of C-shaped canals. Statistical analysis was done to highlight differences between different categories and their prevalence among genders (significance level was set at p < 0.05). Data were presented as frequency and percentage values and were analyzed using chi square test followed by pairwise comparisons utilizing multiple Fisher’s exact tests with Bonferroni correction. The significance level was set at p < 0.05 within all tests. Results Of the 350 mandibular second molars evaluated, 87.2% were non-C-shaped while 12.8% were C-shaped with no gender-based statistically significant differences (χ2 = 0.19, p = 0.656). Most samples had three root canals (80%) followed by two (16%), then one (3.2%), and finally four (0.8%) root canals. Among the non-C-shaped molars, presence of two roots was most common (83.4%) followed by presence of a single root (16.2%), and only one sample (0.2%) had three roots, and this had no correlation with gender (χ2 = 1.86, p = 0.431). In the mesial roots Type IV Vertucci was the most common configuration found (68.8%), while Type I was the most prevalent in the distal roots (91.8%). The long oval configuration was the most commonly found cross section in mesial roots while “oval” was the most prevalent in distal roots. Conclusion Egyptian sub-population shows highly variable morphological features in mandibular second molars, hence, CBCT is highly recommended on case-to-case conditions.https://doi.org/10.1186/s12903-023-02939-7C-shaped canalCone beam computed tomographyEndodonticsMandibular second molar |
| spellingShingle | Shehabeldin Mohamed Saber Mohammed abou El Seoud Shaimaa Mohamed Abu el Sadat Nawar Naguib Nawar Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography study BMC Oral Health C-shaped canal Cone beam computed tomography Endodontics Mandibular second molar |
| title | Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography study |
| title_full | Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography study |
| title_fullStr | Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography study |
| title_full_unstemmed | Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography study |
| title_short | Root and canal morphology of mandibular second molars in an Egyptian subpopulation: a cone-beam computed tomography study |
| title_sort | root and canal morphology of mandibular second molars in an egyptian subpopulation a cone beam computed tomography study |
| topic | C-shaped canal Cone beam computed tomography Endodontics Mandibular second molar |
| url | https://doi.org/10.1186/s12903-023-02939-7 |
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