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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Autores principales:	Alfredo Sierra-Cristancho, Luis González-Osuna, Daniela Poblete, Emilio A. Cafferata, Paola Carvajal, Carla P. Lozano, Rolando Vernal
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1394d008749d4bd99ef0bfcd702893d3
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spelling	oai:doaj.org-article:1394d008749d4bd99ef0bfcd702893d32021-12-02T15:13:01ZMicro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population10.1038/s41598-020-80046-12045-2322https://doaj.org/article/1394d008749d4bd99ef0bfcd702893d32021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80046-1https://doaj.org/toc/2045-2322Abstract 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.Alfredo Sierra-CristanchoLuis González-OsunaDaniela PobleteEmilio A. CafferataPaola CarvajalCarla P. LozanoRolando VernalNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q 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
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.
format	article
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
title	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_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_sort	micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a chilean population
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1394d008749d4bd99ef0bfcd702893d3
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Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population

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