volume 40, issue 6, Pe155-e158 2012
DOI: 10.1016/j.jcms.2011.08.005
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Miguel Puche, Raquel Guijarro-Martínez, Gonzalo Pérez-Herrezuelo, Luis Miragall, María E. Iglesias, Cecilia Martínez-Costa

Abstract: Besides mouth opening restriction, clinical features of coronoid hyperplasia in infants can include suction or deglutition anomalies, failure to thrive and recurrent episodes of choking or aspiration pneumonia. The authors hypothesize reduced fetal mandibular movements and deglutition as a result of congenital hypotonia may lead to relative hyperactivity of the temporalis muscle that is not counterbalanced by the infra and suprahyoid muscles, thereby facilitating coronoid overgrowth.