Diferencias en el patrón muscular masticatorio entre respiradores nasales y orales de 6 a 12 años con y sin tratamiento ortodóntico. Propuesta de un protocolo odontológico de derivación a Terapia Miofuncional
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2026
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16/09/2025
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Universidad Complutense de Madrid
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La respiración es un proceso fundamental que influye en múltiples aspectos de la función y la anatomía del sistema orofacial. Los patrones respiratorios ejercen distintos grados de influencia sobre el desarrollo estructural y funcional del complejo craneofacial. La instauración y persistencia de un hábito de respiración oral durante el periodo de crecimiento pueden inducir modificaciones en la morfología y en la actividad muscular, afectando la función masticatoria y la estabilidad oclusal. Estas alteraciones pueden repercutir en la dinámica musculoesquelética y comprometer el equilibrio biomecánico del sistema estomatognático, lo que justifica la necesidad de investigar en profundidad sus efectos biomecánicos y funcionales. El objetivo del presente estudio es analizar si existen diferencias significativas en la actividad de los músculos masticatorios de la mandíbula (músculos maseteros derecho e izquierdo) entre niños con un patrón de respiración nasal, considerado fisiológico y funcionalmente eficiente, y niños diagnosticados con un hábito de respiración oral. Se plantea la hipótesis de que la respiración oral altera la función masticatoria, provocando cambios en la actividad muscular que pueden ser cuantificados mediante electromiografía de superficie (EMG)...
The way we breathe has varying degrees of impact on both function and anatomy. The emergence and persistence of an oral breathing habit during the growth period can affect craniofacial development, including bones, muscles, and muscle function patterns.The objective of the present research is to determine whether there are differences in the activity of the masticatory muscles of the mandible (right and left masseter muscles) between children with a nasal breathing pattern—which is considered physiological and healthy—and those diagnosed with an oral breathing habit.To this end, three groups of male and female children aged 6 to 12 years were compared. The control group consisted of nasal breathers without dental alterations. The two experimental groups were, on the one hand, a group of oral breathers with dental occlusion alterations and no orthodontic treatment, and on the other hand, a group of oral breathers with dental occlusion alterations who had undergone previous orthodontic treatment. All patients underwent an orofacial myofunctional clinical examination, followed by the recording of both masseter muscles’ activity using surface electromyography (EMG)...
The way we breathe has varying degrees of impact on both function and anatomy. The emergence and persistence of an oral breathing habit during the growth period can affect craniofacial development, including bones, muscles, and muscle function patterns.The objective of the present research is to determine whether there are differences in the activity of the masticatory muscles of the mandible (right and left masseter muscles) between children with a nasal breathing pattern—which is considered physiological and healthy—and those diagnosed with an oral breathing habit.To this end, three groups of male and female children aged 6 to 12 years were compared. The control group consisted of nasal breathers without dental alterations. The two experimental groups were, on the one hand, a group of oral breathers with dental occlusion alterations and no orthodontic treatment, and on the other hand, a group of oral breathers with dental occlusion alterations who had undergone previous orthodontic treatment. All patients underwent an orofacial myofunctional clinical examination, followed by the recording of both masseter muscles’ activity using surface electromyography (EMG)...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Psicología, leída el 16-09-2025











