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Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography

OBJECTIVES: The aim of this study was to evaluate different anatomical variants of the anterior loop of the inferior alveolar nerve (IAN) via cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 71 patients (36 males and 35 females) were evaluated. We used the classification d...

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Autores principales: Shaban, Baratollah, Khajavi, Amin, Khaki, Nasim, Mohiti, Yones, Mehri, Tahere, Kermani, Hamed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Association of Oral and Maxillofacial Surgeons 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756796/
https://www.ncbi.nlm.nih.gov/pubmed/29333369
http://dx.doi.org/10.5125/jkaoms.2017.43.6.395
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author Shaban, Baratollah
Khajavi, Amin
Khaki, Nasim
Mohiti, Yones
Mehri, Tahere
Kermani, Hamed
author_facet Shaban, Baratollah
Khajavi, Amin
Khaki, Nasim
Mohiti, Yones
Mehri, Tahere
Kermani, Hamed
author_sort Shaban, Baratollah
collection PubMed
description OBJECTIVES: The aim of this study was to evaluate different anatomical variants of the anterior loop of the inferior alveolar nerve (IAN) via cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 71 patients (36 males and 35 females) were evaluated. We used the classification described by Solar for IAN evaluation. In this classification, three different types of IAN loops were introduced prior to emerging from the mental foramen. We classified patients according to this system and introduced a new, fourth type. RESULTS: Type I was seen in 15 sites (10.6%), type II in 39 sites (27.5%), and type III in 50 sites (35.2%). We found a new type in 38 sites (26.8%) that constituted a fourth type. CONCLUSION: We found that type III was the most common variant. In the fourth type, the IAN was not detectable because the main nerve was adjacent to the cortical plate and the incisive branch was thinner than the main branch and alongside it. In this type, more care is needed for surgeries including inferior alveolar and mental nerve transposition.
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spelling pubmed-57567962018-01-12 Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography Shaban, Baratollah Khajavi, Amin Khaki, Nasim Mohiti, Yones Mehri, Tahere Kermani, Hamed J Korean Assoc Oral Maxillofac Surg Original Article OBJECTIVES: The aim of this study was to evaluate different anatomical variants of the anterior loop of the inferior alveolar nerve (IAN) via cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 71 patients (36 males and 35 females) were evaluated. We used the classification described by Solar for IAN evaluation. In this classification, three different types of IAN loops were introduced prior to emerging from the mental foramen. We classified patients according to this system and introduced a new, fourth type. RESULTS: Type I was seen in 15 sites (10.6%), type II in 39 sites (27.5%), and type III in 50 sites (35.2%). We found a new type in 38 sites (26.8%) that constituted a fourth type. CONCLUSION: We found that type III was the most common variant. In the fourth type, the IAN was not detectable because the main nerve was adjacent to the cortical plate and the incisive branch was thinner than the main branch and alongside it. In this type, more care is needed for surgeries including inferior alveolar and mental nerve transposition. The Korean Association of Oral and Maxillofacial Surgeons 2017-12 2017-12-26 /pmc/articles/PMC5756796/ /pubmed/29333369 http://dx.doi.org/10.5125/jkaoms.2017.43.6.395 Text en Copyright © 2017 The Korean Association of Oral and Maxillofacial Surgeons. http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Shaban, Baratollah
Khajavi, Amin
Khaki, Nasim
Mohiti, Yones
Mehri, Tahere
Kermani, Hamed
Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography
title Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography
title_full Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography
title_fullStr Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography
title_full_unstemmed Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography
title_short Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography
title_sort assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756796/
https://www.ncbi.nlm.nih.gov/pubmed/29333369
http://dx.doi.org/10.5125/jkaoms.2017.43.6.395
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