Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study

Introduction: The prevalence of Apical Root Resorption (ARR) after orthodontic treatment is high. It is associated with several factors, such as tooth group, type and duration of treatment, applied force and root morphology. Aim: To evaluate the apical root morphology of maxillary incisors in a...

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Autores principales:	Cristiane Martins Rodrigues Bernard, Luiz Eduardo Gregoris Rabelo, Cyntia Rodrigues de Araújo Estrela, Orlando Aguirre Guedes, BRUNNO SANTOS DE FREITAS SILVA, Carlos Estrela
Formato:	article
Lenguaje:	EN
Publicado:	JCDR Research and Publications Private Limited 2021
Materias:	imaging exam root anatomy root resorption Medicine R
Acceso en línea:	https://doaj.org/article/0b1bd92c6723408e92e4f3474dd4e85a
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spelling	oai:doaj.org-article:0b1bd92c6723408e92e4f3474dd4e85a2021-11-14T06:28:16ZEvaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study10.7860/JCDR/2021/49776.154102249-782X0973-709Xhttps://doaj.org/article/0b1bd92c6723408e92e4f3474dd4e85a2021-09-01T00:00:00Zhttps://www.jcdr.net/articles/PDF/15410/49776_CE[Ra1]_F[SH]_PF1(SC_RK)_PFA(SC_KM)_PN(KM).pdfhttps://doaj.org/toc/2249-782Xhttps://doaj.org/toc/0973-709XIntroduction: The prevalence of Apical Root Resorption (ARR) after orthodontic treatment is high. It is associated with several factors, such as tooth group, type and duration of treatment, applied force and root morphology. Aim: To evaluate the apical root morphology of maxillary incisors in a Brazilian subpopulation using Cone Beam Computed Tomography (CBCT) images. Materials and Methods: In this retrospective and cross-sectional study, 400 maxillary incisors from 167 patients registered in the data base of Dental Radiology Clinics between January 2012 and April 2017 were analysed. The apical root configuration was verified by navigating 0.1 mm/0.1 mm, in the three planes, axial, coronal, and sagittal sections on CBCT images, from the root canal entrance to the apical foramen, as well as from the apical direction to the crown. The standard reference for apical root form corresponded to the long axis of the tooth. The root forms and their frequency were characterised according to the classification proposed by Levander and Malmgren (1988). The qualitative variables were analysed by the Chi-square test. The level of significance was p-value <0.05. Results: A total of 400 maxillary anterior teeth (central and lateral incisors; n=200 each) from 167 patients (101 women; mean age was 41.8±16.20 years) were analysed. The most common apical root form presented in the central incisors was the blunt root {99 (49.5%)}, followed by pipette-shaped root {69 (34.5%)}. The less frequent was the short root {13 (6.5%)} (p-value <0.001). In the lateral incisors, the highest frequency presented was lacerated root {111 (55.5%)}, followed by blunt root {47 (23.5%)}, and pipetteshaped root {37 (18.5%)} (p-value <0.001). Conclusion: Maxillary central incisors had a higher frequency of rhomboid (blunt) root morphology, while lateral incisors had a higher frequency of curved (lacerated) root form.Cristiane Martins Rodrigues BernardLuiz Eduardo Gregoris RabeloCyntia Rodrigues de Araújo EstrelaOrlando Aguirre GuedesBRUNNO SANTOS DE FREITAS SILVACarlos EstrelaJCDR Research and Publications Private Limitedarticleimaging examroot anatomyroot resorptionMedicineRENJournal of Clinical and Diagnostic Research, Vol 15, Iss 9, Pp ZC23-ZC26 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	imaging exam root anatomy root resorption Medicine R
spellingShingle	imaging exam root anatomy root resorption Medicine R Cristiane Martins Rodrigues Bernard Luiz Eduardo Gregoris Rabelo Cyntia Rodrigues de Araújo Estrela Orlando Aguirre Guedes BRUNNO SANTOS DE FREITAS SILVA Carlos Estrela Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study
description	Introduction: The prevalence of Apical Root Resorption (ARR) after orthodontic treatment is high. It is associated with several factors, such as tooth group, type and duration of treatment, applied force and root morphology. Aim: To evaluate the apical root morphology of maxillary incisors in a Brazilian subpopulation using Cone Beam Computed Tomography (CBCT) images. Materials and Methods: In this retrospective and cross-sectional study, 400 maxillary incisors from 167 patients registered in the data base of Dental Radiology Clinics between January 2012 and April 2017 were analysed. The apical root configuration was verified by navigating 0.1 mm/0.1 mm, in the three planes, axial, coronal, and sagittal sections on CBCT images, from the root canal entrance to the apical foramen, as well as from the apical direction to the crown. The standard reference for apical root form corresponded to the long axis of the tooth. The root forms and their frequency were characterised according to the classification proposed by Levander and Malmgren (1988). The qualitative variables were analysed by the Chi-square test. The level of significance was p-value <0.05. Results: A total of 400 maxillary anterior teeth (central and lateral incisors; n=200 each) from 167 patients (101 women; mean age was 41.8±16.20 years) were analysed. The most common apical root form presented in the central incisors was the blunt root {99 (49.5%)}, followed by pipette-shaped root {69 (34.5%)}. The less frequent was the short root {13 (6.5%)} (p-value <0.001). In the lateral incisors, the highest frequency presented was lacerated root {111 (55.5%)}, followed by blunt root {47 (23.5%)}, and pipetteshaped root {37 (18.5%)} (p-value <0.001). Conclusion: Maxillary central incisors had a higher frequency of rhomboid (blunt) root morphology, while lateral incisors had a higher frequency of curved (lacerated) root form.
format	article
author	Cristiane Martins Rodrigues Bernard Luiz Eduardo Gregoris Rabelo Cyntia Rodrigues de Araújo Estrela Orlando Aguirre Guedes BRUNNO SANTOS DE FREITAS SILVA Carlos Estrela
author_facet	Cristiane Martins Rodrigues Bernard Luiz Eduardo Gregoris Rabelo Cyntia Rodrigues de Araújo Estrela Orlando Aguirre Guedes BRUNNO SANTOS DE FREITAS SILVA Carlos Estrela
author_sort	Cristiane Martins Rodrigues Bernard
title	Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study
title_short	Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study
title_full	Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study
title_fullStr	Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study
title_full_unstemmed	Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study
title_sort	evaluation of apical root morphology of maxillary incisors using cone beam computed tomography in brazilian subpopulation: a cross-sectional study
publisher	JCDR Research and Publications Private Limited
publishDate	2021
url	https://doaj.org/article/0b1bd92c6723408e92e4f3474dd4e85a
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Evaluation of Apical Root Morphology of Maxillary Incisors using Cone Beam Computed Tomography in Brazilian Subpopulation: A Cross-sectional Study

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