Importancia de la musculatura supra e infrahioidea en la biomecánica mandibular

This study aimed to search for data in the literature that clearly indicate the importance of the supra- and infra-hyoid muscle in mandibular biomechanics. A broad, non-systematic search of the literature was carried out through research in different databases such as SCIELO Brasil, MEDLINE and PubMed. The following terms, in the Portuguese language, were utilized: «músculos supra-hióideos» and «músculos infra-hióideos», followed by the English word AND with the terms «biomecânica mandibular», «mastigação», «amplitude de movimento articular» and «movimientos bordejantes», in addition to applying their corresponding terms in the English language. Some textbooks were also utilized. According to the literature, the functional action of the supra- and infra-hyoid muscles are essential for mandibular biomechanics and for balancing the head on the neck. There is still a need for more scientific evidence in the approach to para-functional situations involving the supra- and infra-hyoid areas, despite the existence of some publications on this subject.