Incidence, types and clinical implications of a non-metrical variant--mylohyoid bridging in human mandibles.
Identifieur interne : 001C89 ( Ncbi/Merge ); précédent : 001C88; suivant : 001C90Incidence, types and clinical implications of a non-metrical variant--mylohyoid bridging in human mandibles.
Auteurs : K. Narayana [Koweït] ; P. Narayan ; K. Ashwin ; L V PrabhuSource :
- Folia morphologica [ 0015-5659 ] ; 2007.
Descripteurs français
- KwdFr :
- MESH :
- anatomie et histologie : Mandibule, Os hyoïde.
- Adulte, Anthropométrie, Bouche édentée, Facteurs de l'âge, Humains, Incidence, Mâchoire partiellement édentée.
English descriptors
- KwdEn :
- MESH :
- anatomy & histology : Hyoid Bone, Mandible.
- Adult, Age Factors, Anthropometry, Humans, Incidence, Jaw, Edentulous, Partially, Mouth, Edentulous.
Abstract
Mylohyoid bridging (MB) is a non-metrical variant of the human mandible. The incidence and types of MB were investigated in 264 mandibles (edentulous 116, semi-dentulous 90 and dentulous 58). No mandible showed a complete type of MB, although 19 (7.2%) mandibles had a partial type. These were classified into two subtypes: distal partial (DP; Type I) and proximal partial (PP; Type II), depending on their location over the mylohyoid groove. The MB was present unilaterally in 7.76% of edentulous mandibles: right side 5.17% (3.45% PP type and 1.72% DP type) and left side 2.59% (1.72% PP type and 0.86% DP type). Of the semi-dentulous mandibles 3.33% had DP type of MB, 1.11% on the right side and 2.22% on the left side, and of the dentulous mandibles 1.72% had DP type of MB on the right side. A total of 13 mandibles out of 264 (4.92%) had unilateral MB. No dentulous mandible had bilateral MB, but 3.45% of edentulous and 2.22% of semi-dentulous mandibles did have. In total, 6 mandibles out of 264 bones (2.27%) had bilateral MB. Of the bilateral incidences 1.72% of edentulous mandibles had a DP-DP combination and the remaining 1.72% had a PP-DP combination. However, both instances of bilateral MB in semi-dentulous mandibles were of PP-DP combination. The incidence or types of MB showed no statistically significant differences between the groups or sides (p > 0.5; chi(2) test). In conclusion, the complete type of MB is a rare occurrence. The incidence increases with age, as edentulous mandibles had a higher incidence of MB than the other two groups. Clinically, MB may compress the mylohyoid neurovascular bundle, leading to neurological or vascular disorders.
PubMed: 17533590
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Ashwin</name></author><author><name sortKey="Prabhu, L V" sort="Prabhu, L V" uniqKey="Prabhu L" first="L V" last="Prabhu">L V Prabhu</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2007">2007</date><idno type="RBID">pubmed:17533590</idno><idno type="pmid">17533590</idno><idno type="wicri:Area/PubMed/Corpus">002558</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">002558</idno><idno type="wicri:Area/PubMed/Curation">002558</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">002558</idno><idno type="wicri:Area/PubMed/Checkpoint">002558</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">002558</idno><idno type="wicri:Area/Ncbi/Merge">001C89</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Incidence, types and clinical implications of a non-metrical variant--mylohyoid bridging in human mandibles.</title><author><name sortKey="Narayana, K" sort="Narayana, K" uniqKey="Narayana K" first="K" last="Narayana">K. Narayana</name><affiliation wicri:level="1"><nlm:affiliation>Department of Anatomy, Faculty of Medicine, HSC, Kuwait University, Safat, Kuwait. narayana68@yahoo.com</nlm:affiliation><country xml:lang="fr">Koweït</country><wicri:regionArea>Department of Anatomy, Faculty of Medicine, HSC, Kuwait University, Safat</wicri:regionArea><wicri:noRegion>Safat</wicri:noRegion></affiliation></author><author><name sortKey="Narayan, P" sort="Narayan, P" uniqKey="Narayan P" first="P" last="Narayan">P. Narayan</name></author><author><name sortKey="Ashwin, K" sort="Ashwin, K" uniqKey="Ashwin K" first="K" last="Ashwin">K. Ashwin</name></author><author><name sortKey="Prabhu, L V" sort="Prabhu, L V" uniqKey="Prabhu L" first="L V" last="Prabhu">L V Prabhu</name></author></analytic><series><title level="j">Folia morphologica</title><idno type="ISSN">0015-5659</idno><imprint><date when="2007" type="published">2007</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Age Factors</term><term>Anthropometry</term><term>Humans</term><term>Hyoid Bone (anatomy & histology)</term><term>Incidence</term><term>Jaw, Edentulous, Partially</term><term>Mandible (anatomy & histology)</term><term>Mouth, Edentulous</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte</term><term>Anthropométrie</term><term>Bouche édentée</term><term>Facteurs de l'âge</term><term>Humains</term><term>Incidence</term><term>Mandibule (anatomie et histologie)</term><term>Mâchoire partiellement édentée</term><term>Os hyoïde (anatomie et histologie)</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Mandibule</term><term>Os hyoïde</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Hyoid Bone</term><term>Mandible</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Age Factors</term><term>Anthropometry</term><term>Humans</term><term>Incidence</term><term>Jaw, Edentulous, Partially</term><term>Mouth, Edentulous</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Anthropométrie</term><term>Bouche édentée</term><term>Facteurs de l'âge</term><term>Humains</term><term>Incidence</term><term>Mâchoire partiellement édentée</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Mylohyoid bridging (MB) is a non-metrical variant of the human mandible. The incidence and types of MB were investigated in 264 mandibles (edentulous 116, semi-dentulous 90 and dentulous 58). No mandible showed a complete type of MB, although 19 (7.2%) mandibles had a partial type. These were classified into two subtypes: distal partial (DP; Type I) and proximal partial (PP; Type II), depending on their location over the mylohyoid groove. The MB was present unilaterally in 7.76% of edentulous mandibles: right side 5.17% (3.45% PP type and 1.72% DP type) and left side 2.59% (1.72% PP type and 0.86% DP type). Of the semi-dentulous mandibles 3.33% had DP type of MB, 1.11% on the right side and 2.22% on the left side, and of the dentulous mandibles 1.72% had DP type of MB on the right side. A total of 13 mandibles out of 264 (4.92%) had unilateral MB. No dentulous mandible had bilateral MB, but 3.45% of edentulous and 2.22% of semi-dentulous mandibles did have. In total, 6 mandibles out of 264 bones (2.27%) had bilateral MB. Of the bilateral incidences 1.72% of edentulous mandibles had a DP-DP combination and the remaining 1.72% had a PP-DP combination. However, both instances of bilateral MB in semi-dentulous mandibles were of PP-DP combination. The incidence or types of MB showed no statistically significant differences between the groups or sides (p > 0.5; chi(2) test). In conclusion, the complete type of MB is a rare occurrence. The incidence increases with age, as edentulous mandibles had a higher incidence of MB than the other two groups. Clinically, MB may compress the mylohyoid neurovascular bundle, leading to neurological or vascular disorders.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17533590</PMID><DateCompleted><Year>2007</Year><Month>06</Month><Day>19</Day></DateCompleted><DateRevised><Year>2007</Year><Month>05</Month><Day>29</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0015-5659</ISSN><JournalIssue CitedMedium="Print"><Volume>66</Volume><Issue>1</Issue><PubDate><Year>2007</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Folia morphologica</Title><ISOAbbreviation>Folia Morphol. (Warsz)</ISOAbbreviation></Journal><ArticleTitle>Incidence, types and clinical implications of a non-metrical variant--mylohyoid bridging in human mandibles.</ArticleTitle><Pagination><MedlinePgn>20-4</MedlinePgn></Pagination><Abstract><AbstractText>Mylohyoid bridging (MB) is a non-metrical variant of the human mandible. The incidence and types of MB were investigated in 264 mandibles (edentulous 116, semi-dentulous 90 and dentulous 58). No mandible showed a complete type of MB, although 19 (7.2%) mandibles had a partial type. These were classified into two subtypes: distal partial (DP; Type I) and proximal partial (PP; Type II), depending on their location over the mylohyoid groove. The MB was present unilaterally in 7.76% of edentulous mandibles: right side 5.17% (3.45% PP type and 1.72% DP type) and left side 2.59% (1.72% PP type and 0.86% DP type). Of the semi-dentulous mandibles 3.33% had DP type of MB, 1.11% on the right side and 2.22% on the left side, and of the dentulous mandibles 1.72% had DP type of MB on the right side. A total of 13 mandibles out of 264 (4.92%) had unilateral MB. No dentulous mandible had bilateral MB, but 3.45% of edentulous and 2.22% of semi-dentulous mandibles did have. In total, 6 mandibles out of 264 bones (2.27%) had bilateral MB. Of the bilateral incidences 1.72% of edentulous mandibles had a DP-DP combination and the remaining 1.72% had a PP-DP combination. However, both instances of bilateral MB in semi-dentulous mandibles were of PP-DP combination. The incidence or types of MB showed no statistically significant differences between the groups or sides (p > 0.5; chi(2) test). In conclusion, the complete type of MB is a rare occurrence. The incidence increases with age, as edentulous mandibles had a higher incidence of MB than the other two groups. Clinically, MB may compress the mylohyoid neurovascular bundle, leading to neurological or vascular disorders.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Narayana</LastName><ForeName>K</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Department of Anatomy, Faculty of Medicine, HSC, Kuwait University, Safat, Kuwait. narayana68@yahoo.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Narayan</LastName><ForeName>P</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Ashwin</LastName><ForeName>K</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Prabhu</LastName><ForeName>L V</ForeName><Initials>LV</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Poland</Country><MedlineTA>Folia Morphol (Warsz)</MedlineTA><NlmUniqueID>0374620</NlmUniqueID><ISSNLinking>0015-5659</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000367" MajorTopicYN="N">Age Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000886" MajorTopicYN="N">Anthropometry</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006928" MajorTopicYN="N">Hyoid Bone</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D015994" MajorTopicYN="N">Incidence</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007576" MajorTopicYN="N">Jaw, Edentulous, Partially</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008334" MajorTopicYN="N">Mandible</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009066" MajorTopicYN="N">Mouth, Edentulous</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>5</Month><Day>30</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>6</Month><Day>20</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>5</Month><Day>30</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17533590</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Koweït</li></country></list><tree><noCountry><name sortKey="Ashwin, K" sort="Ashwin, K" uniqKey="Ashwin K" first="K" last="Ashwin">K. Ashwin</name><name sortKey="Narayan, P" sort="Narayan, P" uniqKey="Narayan P" first="P" last="Narayan">P. Narayan</name><name sortKey="Prabhu, L V" sort="Prabhu, L V" uniqKey="Prabhu L" first="L V" last="Prabhu">L V Prabhu</name></noCountry><country name="Koweït"><noRegion><name sortKey="Narayana, K" sort="Narayana, K" uniqKey="Narayana K" first="K" last="Narayana">K. Narayana</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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