Anatomy of the lateral pterygoid muscle and its relationship with temporomandibular disorders: A literature review
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Juan José Valenzuela [1] ; Mathias Orellana [2] ; Marjorie Gold [1] ; Guernica Garcia [1] ; Andrés Santana [3] ; Guernica Garcia [1]
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[1] Universidad Andrés Bello
Universidad Andrés Bello
Santiago, Chile
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[2] Universidad San Sebastián
Universidad San Sebastián
Comuna de Concepción, Chile
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[3] Universidad de las Américas
Universidad de las Américas
Santiago, Chile
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- Localización: European Journal of anatomy, ISSN-e 1136-4890, Vol. 24, Nº. 3, 2020, págs. 249-256
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
The lateral pterygoid muscle is a chewing muscle that is found bilaterally in the cranial region. Ana-tomically, the lateral pterygoid muscle is made up of two bellies, an upper belly and a lower belly. Its anatomical description present in the scientific lit-erature showed that there is an anatomical differ-ence or variation, mainly the insertions of the up-per belly of the lateral pterygoid muscle at the level of the temporomandibular joint, and specifically in the disc and articular condyle, although distribu-tions are reported similarly. They are not entirely accurate in smaller quantities: some articles re-ported variations in the insertion of the lower belly and others the appearance of a third belly of the lateral pterygoid muscle or medial belly. As men-tioned above, a high number of studies that pre-sented some type of lateral pterygoid muscle vari-ation was associated with some type of temporo-mandibular disorders of the joint or some of its in-tra or extra-articular components. A review of the literature in scientific databases was carried out after the selection of the scientific articles, which were analyzed in full text, and the relationship be-tween the anatomy of the lateral pterygoid muscleand the temporomandibular disorders was sought.
