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Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography
PURPOSE: Sufficient area in the interforaminal region is required for dental implant placement, and the anterior loop of the mandibular canal is located within the limits of this area. The aim of this study was to evaluate the prevalence and extent of the anterior loop in a Brazilian sample populati...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Korean Academy of Oral and Maxillofacial Radiology
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4925653/ https://www.ncbi.nlm.nih.gov/pubmed/27358813 http://dx.doi.org/10.5624/isd.2016.46.2.69 |
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author | do Nascimento, Eduarda Helena Leandro dos Anjos Pontual, Maria Luiza dos Anjos Pontual, Andréa da Cruz Perez, Danyel Elias Figueiroa, José Natal Frazão, Marco Antônio Gomes Ramos-Perez, Flávia Maria de Moraes |
author_facet | do Nascimento, Eduarda Helena Leandro dos Anjos Pontual, Maria Luiza dos Anjos Pontual, Andréa da Cruz Perez, Danyel Elias Figueiroa, José Natal Frazão, Marco Antônio Gomes Ramos-Perez, Flávia Maria de Moraes |
author_sort | do Nascimento, Eduarda Helena Leandro |
collection | PubMed |
description | PURPOSE: Sufficient area in the interforaminal region is required for dental implant placement, and the anterior loop of the mandibular canal is located within the limits of this area. The aim of this study was to evaluate the prevalence and extent of the anterior loop in a Brazilian sample population using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images from 250 patients (500 hemimandibles) obtained for various clinical indications were randomly selected and evaluated to determine the presence and length of the anterior loop. The length of the anterior loop was then compared based on gender, age, and the side of the mandible. The data were analyzed using the Pearson chi-square test and linear regression analysis. RESULTS: An anterior loop was identified in 41.6% of the cases, and its length ranged from 0.25 mm to 4.00 mm (mean, 1.1±0.8 mm). The loop had a greater mean length and was significantly more prevalent in males (p=0.014). No significant differences were found between the right and left sides regarding length (p=0.696) or prevalence (p=0.650). CONCLUSION: In this study, a high prevalence of the anterior loop of the mandibular canal was found, and although its length varied greatly, in most cases it was less than 1 mm long. Although this is a prevalent anatomical variation, safety limits for the placement of implants in this region cannot be established before an accurate evaluation using imaging techniques in order to identify and preserve the neurovascular bundles. |
format | Online Article Text |
id | pubmed-4925653 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Korean Academy of Oral and Maxillofacial Radiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-49256532016-06-29 Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography do Nascimento, Eduarda Helena Leandro dos Anjos Pontual, Maria Luiza dos Anjos Pontual, Andréa da Cruz Perez, Danyel Elias Figueiroa, José Natal Frazão, Marco Antônio Gomes Ramos-Perez, Flávia Maria de Moraes Imaging Sci Dent Original Article PURPOSE: Sufficient area in the interforaminal region is required for dental implant placement, and the anterior loop of the mandibular canal is located within the limits of this area. The aim of this study was to evaluate the prevalence and extent of the anterior loop in a Brazilian sample population using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images from 250 patients (500 hemimandibles) obtained for various clinical indications were randomly selected and evaluated to determine the presence and length of the anterior loop. The length of the anterior loop was then compared based on gender, age, and the side of the mandible. The data were analyzed using the Pearson chi-square test and linear regression analysis. RESULTS: An anterior loop was identified in 41.6% of the cases, and its length ranged from 0.25 mm to 4.00 mm (mean, 1.1±0.8 mm). The loop had a greater mean length and was significantly more prevalent in males (p=0.014). No significant differences were found between the right and left sides regarding length (p=0.696) or prevalence (p=0.650). CONCLUSION: In this study, a high prevalence of the anterior loop of the mandibular canal was found, and although its length varied greatly, in most cases it was less than 1 mm long. Although this is a prevalent anatomical variation, safety limits for the placement of implants in this region cannot be established before an accurate evaluation using imaging techniques in order to identify and preserve the neurovascular bundles. Korean Academy of Oral and Maxillofacial Radiology 2016-06 2016-06-23 /pmc/articles/PMC4925653/ /pubmed/27358813 http://dx.doi.org/10.5624/isd.2016.46.2.69 Text en Copyright © 2016 by Korean Academy of Oral and Maxillofacial Radiology http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article do Nascimento, Eduarda Helena Leandro dos Anjos Pontual, Maria Luiza dos Anjos Pontual, Andréa da Cruz Perez, Danyel Elias Figueiroa, José Natal Frazão, Marco Antônio Gomes Ramos-Perez, Flávia Maria de Moraes Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography |
title | Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography |
title_full | Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography |
title_fullStr | Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography |
title_full_unstemmed | Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography |
title_short | Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography |
title_sort | assessment of the anterior loop of the mandibular canal: a study using cone-beam computed tomography |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4925653/ https://www.ncbi.nlm.nih.gov/pubmed/27358813 http://dx.doi.org/10.5624/isd.2016.46.2.69 |
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