Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population
Abstract This study aimed to analyze the root anatomy and root canal system morphology of mandibular first premolars in a Chilean population. 186 teeth were scanned using micro-computed tomography and reconstructed three-dimensionally. The root canal system morphology was classified using both Vertu...
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| Format: | Article |
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Nature Portfolio
2021-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-020-80046-1 |
| _version_ | 1818998791232028672 |
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| author | Alfredo Sierra-Cristancho Luis González-Osuna Daniela Poblete Emilio A. Cafferata Paola Carvajal Carla P. Lozano Rolando Vernal |
| author_facet | Alfredo Sierra-Cristancho Luis González-Osuna Daniela Poblete Emilio A. Cafferata Paola Carvajal Carla P. Lozano Rolando Vernal |
| author_sort | Alfredo Sierra-Cristancho |
| collection | DOAJ |
| description | Abstract This study aimed to analyze the root anatomy and root canal system morphology of mandibular first premolars in a Chilean population. 186 teeth were scanned using micro-computed tomography and reconstructed three-dimensionally. The root canal system morphology was classified using both Vertucci’s and Ahmed’s criteria. The radicular grooves were categorized using the ASUDAS system, and the presence of Tomes’ anomalous root was associated with Ahmed’s score. A single root canal was identified in 65.05% of teeth, being configuration type I according to Vertucci’s criteria and code 1MP1 according to Ahmed’s criteria. Radicular grooves were observed in 39.25% of teeth. The ASUDAS scores for radicular grooves were 60.75%, 13.98%, 12.36%, 10.22%, 2.15%, and 0.54%, from grade 0 to grade 5, respectively. The presence of Tomes’ anomalous root was identified only in teeth with multiple root canals, and it was more frequently associated with code 1MP1–2 of Ahmed’s criteria. The root canal system morphology of mandibular first premolars showed a wide range of anatomical variations in the Chilean population. Teeth with multiple root canals had a higher incidence of radicular grooves, which were closely related to more complex internal anatomy. Only teeth with multiple root canals presented Tomes’ anomalous root. |
| first_indexed | 2024-12-20T22:07:08Z |
| format | Article |
| id | doaj.art-1394d008749d4bd99ef0bfcd702893d3 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T22:07:08Z |
| publishDate | 2021-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1394d008749d4bd99ef0bfcd702893d32022-12-21T19:25:15ZengNature PortfolioScientific Reports2045-23222021-01-0111111010.1038/s41598-020-80046-1Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean populationAlfredo Sierra-Cristancho0Luis González-Osuna1Daniela Poblete2Emilio A. Cafferata3Paola Carvajal4Carla P. Lozano5Rolando Vernal6Periodontal Biology Laboratory, Faculty of Dentistry, Universidad de ChilePeriodontal Biology Laboratory, Faculty of Dentistry, Universidad de ChilePeriodontal Biology Laboratory, Faculty of Dentistry, Universidad de ChilePeriodontal Biology Laboratory, Faculty of Dentistry, Universidad de ChileDepartment of Conservative Dentistry, Faculty of Dentistry, Universidad de ChileOral Biology and Biochemistry Laboratory, Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de ChilePeriodontal Biology Laboratory, Faculty of Dentistry, Universidad de ChileAbstract This study aimed to analyze the root anatomy and root canal system morphology of mandibular first premolars in a Chilean population. 186 teeth were scanned using micro-computed tomography and reconstructed three-dimensionally. The root canal system morphology was classified using both Vertucci’s and Ahmed’s criteria. The radicular grooves were categorized using the ASUDAS system, and the presence of Tomes’ anomalous root was associated with Ahmed’s score. A single root canal was identified in 65.05% of teeth, being configuration type I according to Vertucci’s criteria and code 1MP1 according to Ahmed’s criteria. Radicular grooves were observed in 39.25% of teeth. The ASUDAS scores for radicular grooves were 60.75%, 13.98%, 12.36%, 10.22%, 2.15%, and 0.54%, from grade 0 to grade 5, respectively. The presence of Tomes’ anomalous root was identified only in teeth with multiple root canals, and it was more frequently associated with code 1MP1–2 of Ahmed’s criteria. The root canal system morphology of mandibular first premolars showed a wide range of anatomical variations in the Chilean population. Teeth with multiple root canals had a higher incidence of radicular grooves, which were closely related to more complex internal anatomy. Only teeth with multiple root canals presented Tomes’ anomalous root.https://doi.org/10.1038/s41598-020-80046-1 |
| spellingShingle | Alfredo Sierra-Cristancho Luis González-Osuna Daniela Poblete Emilio A. Cafferata Paola Carvajal Carla P. Lozano Rolando Vernal Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population Scientific Reports |
| title | Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population |
| title_full | Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population |
| title_fullStr | Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population |
| title_full_unstemmed | Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population |
| title_short | Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population |
| title_sort | micro tomographic characterization of the root and canal system morphology of mandibular first premolars in a chilean population |
| url | https://doi.org/10.1038/s41598-020-80046-1 |
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