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Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population

OBJECTIVE: The shape of the condyle, coronoid, and the intervening sigmoid notch is unique due to attachments and direction of pull of temporalis muscle, different chewing habits, hormones, etc. So morphometric variation of these mandibular landmarks can be used in individual identification. MATERIA...

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Autores principales: Manoj, Manpreet, Mathew, Leeba, Natarajan, Srikant, Yellapurkar, Shweta, Shetty, Shravan, Denny, Ceena, Dahal, Samarika
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Scientific Scholar 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9168303/
https://www.ncbi.nlm.nih.gov/pubmed/35673587
http://dx.doi.org/10.25259/JCIS_27_2022
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author Manoj, Manpreet
Mathew, Leeba
Natarajan, Srikant
Yellapurkar, Shweta
Shetty, Shravan
Denny, Ceena
Dahal, Samarika
author_facet Manoj, Manpreet
Mathew, Leeba
Natarajan, Srikant
Yellapurkar, Shweta
Shetty, Shravan
Denny, Ceena
Dahal, Samarika
author_sort Manoj, Manpreet
collection PubMed
description OBJECTIVE: The shape of the condyle, coronoid, and the intervening sigmoid notch is unique due to attachments and direction of pull of temporalis muscle, different chewing habits, hormones, etc. So morphometric variation of these mandibular landmarks can be used in individual identification. MATERIAL AND METHODS: The study was carried out on 500 panoramic view images. Visual tracing assisted assessment of thousand sides (left and right) was done. Sexual dimorphism of left and right mandibular ramus parts (sigmoid notch bordered by coronoid and condylar process). The shape of coronoid process, condyle, and sigmoid notch were interpreted. RESULTS: The most prevalent shape of sigmoid notch was wide variant (41.2%), condyle was convex type (50%) and coronoid was round (53.4%). Condyle and coronoid showed asymmetry between right and left with p-value 0.001 and 0.019, respectively. This study has illustrated that triangular-shaped coronoid was more in females (p-value 0.012). CONCLUSION: Sexual dimorphism is observed in the shape of the mandible due to masticatory activity at the point of insertion of temporalis muscle, biting force, hormones, and various genetic reasons. The results have exemplified that the morphometric variation of condyle, coronoid and sigmoid notch can be used as a tool for personal identification.
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spelling pubmed-91683032022-06-06 Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population Manoj, Manpreet Mathew, Leeba Natarajan, Srikant Yellapurkar, Shweta Shetty, Shravan Denny, Ceena Dahal, Samarika J Clin Imaging Sci Original Research OBJECTIVE: The shape of the condyle, coronoid, and the intervening sigmoid notch is unique due to attachments and direction of pull of temporalis muscle, different chewing habits, hormones, etc. So morphometric variation of these mandibular landmarks can be used in individual identification. MATERIAL AND METHODS: The study was carried out on 500 panoramic view images. Visual tracing assisted assessment of thousand sides (left and right) was done. Sexual dimorphism of left and right mandibular ramus parts (sigmoid notch bordered by coronoid and condylar process). The shape of coronoid process, condyle, and sigmoid notch were interpreted. RESULTS: The most prevalent shape of sigmoid notch was wide variant (41.2%), condyle was convex type (50%) and coronoid was round (53.4%). Condyle and coronoid showed asymmetry between right and left with p-value 0.001 and 0.019, respectively. This study has illustrated that triangular-shaped coronoid was more in females (p-value 0.012). CONCLUSION: Sexual dimorphism is observed in the shape of the mandible due to masticatory activity at the point of insertion of temporalis muscle, biting force, hormones, and various genetic reasons. The results have exemplified that the morphometric variation of condyle, coronoid and sigmoid notch can be used as a tool for personal identification. Scientific Scholar 2022-05-05 /pmc/articles/PMC9168303/ /pubmed/35673587 http://dx.doi.org/10.25259/JCIS_27_2022 Text en © 2022 Published by Scientific Scholar on behalf of Journal of Clinical Imaging Science https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, transform, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Research
Manoj, Manpreet
Mathew, Leeba
Natarajan, Srikant
Yellapurkar, Shweta
Shetty, Shravan
Denny, Ceena
Dahal, Samarika
Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population
title Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population
title_full Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population
title_fullStr Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population
title_full_unstemmed Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population
title_short Morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south Indian population
title_sort morphometric anlaysis of mandibular coronoid, condyle and sigmoid shape using panoromic view for personal identification in south indian population
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9168303/
https://www.ncbi.nlm.nih.gov/pubmed/35673587
http://dx.doi.org/10.25259/JCIS_27_2022
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