Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study

SUMMARY: The objective of this study was to evaluate the bilaterality and symmetry in C-shaped mandibular second molars in Mexican Maya and non-Maya populations using cone-beam computed tomography (CBCT). Five-hundred-twenty-five CBCT scans of patients with left and right mandibular second molars we...

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Autores principales:	Vega-Lizama,Elma María, Morales-Ortega,Esteban Alexis, Ramírez-Salomón,Marco, Cucina,Andrea
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2021
Materias:	Bilaterality C-Shaped root canal Mandibular second molars Maya ethnicity Symmetry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000200455
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spelling	oai:scielo:S0717-950220210002004552021-04-22Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo StudyVega-Lizama,Elma MaríaMorales-Ortega,Esteban AlexisRamírez-Salomón,MarcoCucina,Andrea Bilaterality C-Shaped root canal Mandibular second molars Maya ethnicity Symmetry SUMMARY: The objective of this study was to evaluate the bilaterality and symmetry in C-shaped mandibular second molars in Mexican Maya and non-Maya populations using cone-beam computed tomography (CBCT). Five-hundred-twenty-five CBCT scans of patients with left and right mandibular second molars were analyzed to determine the prevalence and bilaterality. The teeth were assessed for the presence of C-shaped root canals, according to Fan et al. (2004) criteria. The sample was subdivided by ethnicity, sex, unilateral/bilateral presence, side of the longitudinal groove, and the C-shaped root canal configuration and symmetry, at the cervical, middle, and apical cross- sections of the root. C-shaped mandibular second molars were present in 24.95% of the individuals. Most (60.30%) of those showing this trait had it bilaterally. When comparing by ethnicity, sex, and side, we detected no significant differences. The vast majority (97.33%) presented the groove along the lingual side. The C3 was the most prevalent configuration in the overall sample, while in the Maya group, the C1 was the most common configuration. When analyzed by sex and ethnic group, the non-Maya females tended to deviate from the other groups in terms of bilaterality. Overall, 55.70% of bilateral C-shaped mandibular second molars were also symmetric in the three radicular thirds. The prevalence of C-shaped mandibular second molars was similar to that reported for northernAsian populations, which is consistent with the evolutionary origins of Native American populations. Most of the sample showed bilaterality and half were symmetric. Clinicians must be aware of the ethnic background of their patients and consider the possible variations to do more predictable root canal treatments.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.39 n.2 20212021-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000200455en10.4067/S0717-95022021000200455
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bilaterality C-Shaped root canal Mandibular second molars Maya ethnicity Symmetry
spellingShingle	Bilaterality C-Shaped root canal Mandibular second molars Maya ethnicity Symmetry Vega-Lizama,Elma María Morales-Ortega,Esteban Alexis Ramírez-Salomón,Marco Cucina,Andrea Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study
description	SUMMARY: The objective of this study was to evaluate the bilaterality and symmetry in C-shaped mandibular second molars in Mexican Maya and non-Maya populations using cone-beam computed tomography (CBCT). Five-hundred-twenty-five CBCT scans of patients with left and right mandibular second molars were analyzed to determine the prevalence and bilaterality. The teeth were assessed for the presence of C-shaped root canals, according to Fan et al. (2004) criteria. The sample was subdivided by ethnicity, sex, unilateral/bilateral presence, side of the longitudinal groove, and the C-shaped root canal configuration and symmetry, at the cervical, middle, and apical cross- sections of the root. C-shaped mandibular second molars were present in 24.95% of the individuals. Most (60.30%) of those showing this trait had it bilaterally. When comparing by ethnicity, sex, and side, we detected no significant differences. The vast majority (97.33%) presented the groove along the lingual side. The C3 was the most prevalent configuration in the overall sample, while in the Maya group, the C1 was the most common configuration. When analyzed by sex and ethnic group, the non-Maya females tended to deviate from the other groups in terms of bilaterality. Overall, 55.70% of bilateral C-shaped mandibular second molars were also symmetric in the three radicular thirds. The prevalence of C-shaped mandibular second molars was similar to that reported for northernAsian populations, which is consistent with the evolutionary origins of Native American populations. Most of the sample showed bilaterality and half were symmetric. Clinicians must be aware of the ethnic background of their patients and consider the possible variations to do more predictable root canal treatments.
author	Vega-Lizama,Elma María Morales-Ortega,Esteban Alexis Ramírez-Salomón,Marco Cucina,Andrea
author_facet	Vega-Lizama,Elma María Morales-Ortega,Esteban Alexis Ramírez-Salomón,Marco Cucina,Andrea
author_sort	Vega-Lizama,Elma María
title	Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study
title_short	Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study
title_full	Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study
title_fullStr	Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study
title_full_unstemmed	Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study
title_sort	bilaterality and symmetry of c-shaped mandibular second molars in a mexican maya and non-maya population: a cbct in vivo study
publisher	Sociedad Chilena de Anatomía
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000200455
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Bilaterality and Symmetry of C-Shaped Mandibular Second Molars in a Mexican Maya and Non-Maya Population: A CBCT in vivo Study

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