Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint

Insertion of the upper head of the lateral pterygoid (UHLP) in the temporomandibular joint disc (TMJ) has been linked to anterior displacement of the disc and temporomandibular disfunction. The aim of this study was to determine in human adults, the percentage of muscle fiber in the upper head of th...

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Autores principales:	Tapia Contreras,Jorge, Cantín,Mario, Zavando,Daniela, Suazo Galdames,Iván
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2011
Materias:	Lateral pterygoid muscle Articular disc Morphology based on evidence Systematic review
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300051
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spelling	oai:scielo:S0717-950220110003000512012-06-11Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular JointTapia Contreras,JorgeCantín,MarioZavando,DanielaSuazo Galdames,Iván Lateral pterygoid muscle Articular disc Morphology based on evidence Systematic review Insertion of the upper head of the lateral pterygoid (UHLP) in the temporomandibular joint disc (TMJ) has been linked to anterior displacement of the disc and temporomandibular disfunction. The aim of this study was to determine in human adults, the percentage of muscle fiber in the upper head of the lateral pterygoid muscle inserted in the articular disc. A systematic review of the literature was designed beginning with articles published in Medline, Lilacs and Scielo data bases between the years 1990 and 2010. Key words "Lateral Pterygoid Muscle" and Pterygoid Lateral Muscle" were used, and the term MeSH "Pterygoid Muscle" with Boolean OR "Lateral Ptrerygoid Muscle" AND "Insertion" and the free terms "Pterygoid Lateral Muscle Disc Articular" and "Pterygoid lateral Muscle Meniscus". Of the 156 articles obtained and analyzed, 18 articles meeting eligibility criteria were selected. Based on those articles the percentage of insertion of the CSPL in the TMJ disc was evaluated, each one was subsequently assigned a level of evidence according to OCEBM Oxford Centre Evidence Based Medicine. Only four articles answered the research inquiry, three studies were histological and one used imaging techniques with cross section slices with an adequate evidence level (1B). However, results differed with insertion percentages from 2% to 69.8% being reported in the superior head of the lateral pterygoid muscle in the articular disc.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.29 n.3 20112011-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300051en10.4067/S0717-95022011000300051
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Lateral pterygoid muscle Articular disc Morphology based on evidence Systematic review
spellingShingle	Lateral pterygoid muscle Articular disc Morphology based on evidence Systematic review Tapia Contreras,Jorge Cantín,Mario Zavando,Daniela Suazo Galdames,Iván Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint
description	Insertion of the upper head of the lateral pterygoid (UHLP) in the temporomandibular joint disc (TMJ) has been linked to anterior displacement of the disc and temporomandibular disfunction. The aim of this study was to determine in human adults, the percentage of muscle fiber in the upper head of the lateral pterygoid muscle inserted in the articular disc. A systematic review of the literature was designed beginning with articles published in Medline, Lilacs and Scielo data bases between the years 1990 and 2010. Key words "Lateral Pterygoid Muscle" and Pterygoid Lateral Muscle" were used, and the term MeSH "Pterygoid Muscle" with Boolean OR "Lateral Ptrerygoid Muscle" AND "Insertion" and the free terms "Pterygoid Lateral Muscle Disc Articular" and "Pterygoid lateral Muscle Meniscus". Of the 156 articles obtained and analyzed, 18 articles meeting eligibility criteria were selected. Based on those articles the percentage of insertion of the CSPL in the TMJ disc was evaluated, each one was subsequently assigned a level of evidence according to OCEBM Oxford Centre Evidence Based Medicine. Only four articles answered the research inquiry, three studies were histological and one used imaging techniques with cross section slices with an adequate evidence level (1B). However, results differed with insertion percentages from 2% to 69.8% being reported in the superior head of the lateral pterygoid muscle in the articular disc.
author	Tapia Contreras,Jorge Cantín,Mario Zavando,Daniela Suazo Galdames,Iván
author_facet	Tapia Contreras,Jorge Cantín,Mario Zavando,Daniela Suazo Galdames,Iván
author_sort	Tapia Contreras,Jorge
title	Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint
title_short	Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint
title_full	Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint
title_fullStr	Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint
title_full_unstemmed	Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint
title_sort	percentage of lateral pterygoid muscle inserted in the disc of human temporomandibular joint
publisher	Sociedad Chilena de Anatomía
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300051
work_keys_str_mv	AT tapiacontrerasjorge percentageoflateralpterygoidmuscleinsertedinthediscofhumantemporomandibularjoint AT cantinmario percentageoflateralpterygoidmuscleinsertedinthediscofhumantemporomandibularjoint AT zavandodaniela percentageoflateralpterygoidmuscleinsertedinthediscofhumantemporomandibularjoint AT suazogaldamesivan percentageoflateralpterygoidmuscleinsertedinthediscofhumantemporomandibularjoint
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Percentage of Lateral Pterygoid Muscle Inserted in the Disc of Human Temporomandibular Joint

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