Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints

The constitution and shape of superior head of the lateral pterygoid muscle (SHLP) inserts remains a topic of interest in the literature. The purpose of this study was to analyze by magnetic resonance imaging (MRI) the temporomandibular joint (TMJ) of individuals without signs of temporomandibular d...

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Autores principales:	Pompei Filho,Horácio, Suazo Galdames,Iván, Guimarães,Antonio Sergio
Lenguaje:	English
Publicado:	Universidad de La Frontera. Facultad de Medicina 2010
Materias:	Temporomandibular joint Lateral pterygoid muscle Temporomandibular joint dysfunction Articular disc Anterior disc displacement
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-381X2010000100004
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spelling	oai:scielo:S0718-381X20100001000042012-01-19Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular JointsPompei Filho,HorácioSuazo Galdames,IvánGuimarães,Antonio Sergio Temporomandibular joint Lateral pterygoid muscle Temporomandibular joint dysfunction Articular disc Anterior disc displacement The constitution and shape of superior head of the lateral pterygoid muscle (SHLP) inserts remains a topic of interest in the literature. The purpose of this study was to analyze by magnetic resonance imaging (MRI) the temporomandibular joint (TMJ) of individuals without signs of temporomandibular dysfunction. One hundred seventy-eight MRI images of one hundred and three patients were utilized, and the surface and percentage of the SHLP insert into the articular disc and condilar process was determined. In women, the average insertion into the disc was found to be between 5.7-5.5mm (SD 1.5-1.3), corresponding to 69.8-70.7% of the SHLP. In men, the average insertion into the disc was between 6.2-6.12mm (SD 1.8-1.9), or 68.9-74.2%. There were no differences in terms of the sex of the patients or the side of the joint. We found a significant percentage of SHLP fibers embedded in the disc of asymptomatic TMJs, and its role in the anterior disc displacement and the development of the temporomandibular dysfunction should be revised.info:eu-repo/semantics/openAccessUniversidad de La Frontera. Facultad de MedicinaInternational journal of odontostomatology v.4 n.1 20102010-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-381X2010000100004en10.4067/S0718-381X2010000100004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Temporomandibular joint Lateral pterygoid muscle Temporomandibular joint dysfunction Articular disc Anterior disc displacement
spellingShingle	Temporomandibular joint Lateral pterygoid muscle Temporomandibular joint dysfunction Articular disc Anterior disc displacement Pompei Filho,Horácio Suazo Galdames,Iván Guimarães,Antonio Sergio Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints
description	The constitution and shape of superior head of the lateral pterygoid muscle (SHLP) inserts remains a topic of interest in the literature. The purpose of this study was to analyze by magnetic resonance imaging (MRI) the temporomandibular joint (TMJ) of individuals without signs of temporomandibular dysfunction. One hundred seventy-eight MRI images of one hundred and three patients were utilized, and the surface and percentage of the SHLP insert into the articular disc and condilar process was determined. In women, the average insertion into the disc was found to be between 5.7-5.5mm (SD 1.5-1.3), corresponding to 69.8-70.7% of the SHLP. In men, the average insertion into the disc was between 6.2-6.12mm (SD 1.8-1.9), or 68.9-74.2%. There were no differences in terms of the sex of the patients or the side of the joint. We found a significant percentage of SHLP fibers embedded in the disc of asymptomatic TMJs, and its role in the anterior disc displacement and the development of the temporomandibular dysfunction should be revised.
author	Pompei Filho,Horácio Suazo Galdames,Iván Guimarães,Antonio Sergio
author_facet	Pompei Filho,Horácio Suazo Galdames,Iván Guimarães,Antonio Sergio
author_sort	Pompei Filho,Horácio
title	Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints
title_short	Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints
title_full	Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints
title_fullStr	Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints
title_full_unstemmed	Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints
title_sort	superior head of the lateral pterygoid muscle inserting in asymptomatic temporomandibular joints
publisher	Universidad de La Frontera. Facultad de Medicina
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-381X2010000100004
work_keys_str_mv	AT pompeifilhohoracio superiorheadofthelateralpterygoidmuscleinsertinginasymptomatictemporomandibularjoints AT suazogaldamesivan superiorheadofthelateralpterygoidmuscleinsertinginasymptomatictemporomandibularjoints AT guimaraesantoniosergio superiorheadofthelateralpterygoidmuscleinsertinginasymptomatictemporomandibularjoints
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Superior Head of the Lateral Pterygoid Muscle Inserting in Asymptomatic Temporomandibular Joints

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