RESUMO
PURPOSE: The purpose of this investigation was to evaluate the relationship between tongue-to-palate pressure and the electromyography (EMG) measured from the mylohyoid, anterior belly of the digastric, geniohyoid, medial pterygoid, velum, genioglossus, and intrinsic tongue muscles. Methods Seven healthy adults performed tongue-to-palate pressure tasks at known percentages of their maximum pressure while intramuscular EMG was recorded from the muscles stated above. Multiple regression analysis was performed. RESULTS: Predictors of pressure included the posterior fibers of the genioglossus, mylohyoid, anterior belly of digastric, medial pterygoid, and intrinsic tongue. CONCLUSIONS: Increasing tongue-to-palate pressure coincides with increased muscle activity. Activation of the floor-of-mouth, tongue, and jaw closing muscles increased tongue-to-palate pressure. These findings support the use of a tongue-press exercise to strengthen floor-of-mouth muscles, tongue, and jaw-closing muscles.
Assuntos
Mandíbula/fisiologia , Soalho Bucal/fisiologia , Músculo Esquelético/fisiologia , Palato Mole/fisiologia , Pressão , Língua/fisiologia , Adulto , Eletromiografia , Feminino , Humanos , Masculino , Mandíbula/inervação , Soalho Bucal/inervação , Músculo Esquelético/inervação , Palato Mole/inervação , Língua/inervaçãoRESUMO
Choanal atresia is postulated to be secondary to an abnormality of the rupture of the buccopharyngeal membrane during the embryological period. This condition usually occurs sporadically, but has been described in siblings and successive generations. The genetics remain unclear. We present monozygotic twins with identical findings of unilateral choanal atresia and no other associated anomalies. To our knowledge, this is the first report of such an occurrence.
