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Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study

BACKGROUND: To investigate variations in the anatomy of root canals in permanent second molars of the upper jaw in a population in Chongqing, China, using cone-beam computed tomography (CBCT). MATERIAL/METHODS: CBCT imaging data of 400 second permanent molars of the upper jaws of 200 patients were r...

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Autores principales: Xia, Yu, Qiao, Xin, Huang, Ya-jing, Li, Yue-heng, Zhou, Zhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Scientific Literature, Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7453757/
https://www.ncbi.nlm.nih.gov/pubmed/32810082
http://dx.doi.org/10.12659/MSM.922794
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author Xia, Yu
Qiao, Xin
Huang, Ya-jing
Li, Yue-heng
Zhou, Zhi
author_facet Xia, Yu
Qiao, Xin
Huang, Ya-jing
Li, Yue-heng
Zhou, Zhi
author_sort Xia, Yu
collection PubMed
description BACKGROUND: To investigate variations in the anatomy of root canals in permanent second molars of the upper jaw in a population in Chongqing, China, using cone-beam computed tomography (CBCT). MATERIAL/METHODS: CBCT imaging data of 400 second permanent molars of the upper jaws of 200 patients were retrospectively reviewed. Patients’ gender, age, numbers of roots and canals, root fusion of permanent second molars of the maxilla on both sides, and morphological categories of root canals of mesiobuccal roots were recorded. The distances from the apices of the distobuccal and mesiobuccal roots to the buccal bone plate were measured. RESULTS: Of the 400 permanent second maxillary molars, 312 (78.0%) had three roots and 247 (61.75%) had three canals. Fused roots were observed in 126 (31.5%) teeth; of these, 67 (53.2%) had three canals and 44 (34.9%) had two canals. Morphologically, 297 (74.25%), 29 (7.25%), nine (2.25%) and 65 (16.25%) teeth had type I, II, III, and IV mesiobuccal root canals, respectively, with 103 (25.75%) having secondary mesiobuccal canals. The distances from the apices of the mesiobuccal, distobuccal, and single buccal roots to the surface of the buccal osseous lamella were 7.34±1.89 mm, 6.26±1.74 mm, and 8.60±2.56 mm, respectively. CONCLUSIONS: The root form and canal shape of permanent second molars of the upper jaw varied greatly among the population of Chongqing, China. CBCT is a valuable method for assessing the complex anatomic morphology of teeth.
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spelling pubmed-74537572020-09-03 Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study Xia, Yu Qiao, Xin Huang, Ya-jing Li, Yue-heng Zhou, Zhi Med Sci Monit Clinical Research BACKGROUND: To investigate variations in the anatomy of root canals in permanent second molars of the upper jaw in a population in Chongqing, China, using cone-beam computed tomography (CBCT). MATERIAL/METHODS: CBCT imaging data of 400 second permanent molars of the upper jaws of 200 patients were retrospectively reviewed. Patients’ gender, age, numbers of roots and canals, root fusion of permanent second molars of the maxilla on both sides, and morphological categories of root canals of mesiobuccal roots were recorded. The distances from the apices of the distobuccal and mesiobuccal roots to the buccal bone plate were measured. RESULTS: Of the 400 permanent second maxillary molars, 312 (78.0%) had three roots and 247 (61.75%) had three canals. Fused roots were observed in 126 (31.5%) teeth; of these, 67 (53.2%) had three canals and 44 (34.9%) had two canals. Morphologically, 297 (74.25%), 29 (7.25%), nine (2.25%) and 65 (16.25%) teeth had type I, II, III, and IV mesiobuccal root canals, respectively, with 103 (25.75%) having secondary mesiobuccal canals. The distances from the apices of the mesiobuccal, distobuccal, and single buccal roots to the surface of the buccal osseous lamella were 7.34±1.89 mm, 6.26±1.74 mm, and 8.60±2.56 mm, respectively. CONCLUSIONS: The root form and canal shape of permanent second molars of the upper jaw varied greatly among the population of Chongqing, China. CBCT is a valuable method for assessing the complex anatomic morphology of teeth. International Scientific Literature, Inc. 2020-08-18 /pmc/articles/PMC7453757/ /pubmed/32810082 http://dx.doi.org/10.12659/MSM.922794 Text en © Med Sci Monit, 2020 This work is licensed under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0 (https://creativecommons.org/licenses/by-nc-nd/4.0/) )
spellingShingle Clinical Research
Xia, Yu
Qiao, Xin
Huang, Ya-jing
Li, Yue-heng
Zhou, Zhi
Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study
title Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study
title_full Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study
title_fullStr Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study
title_full_unstemmed Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study
title_short Root Anatomy and Root Canal Morphology of Maxillary Second Permanent Molars in a Chongqing Population: A Cone-Beam Computed Tomography Study
title_sort root anatomy and root canal morphology of maxillary second permanent molars in a chongqing population: a cone-beam computed tomography study
topic Clinical Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7453757/
https://www.ncbi.nlm.nih.gov/pubmed/32810082
http://dx.doi.org/10.12659/MSM.922794
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