Cambios electromiográficos tras corregir la mordida cruzada posterior unilateral.

  1. José María Alamán Fernández 1
  2. Juan Carlos Palma Fernández 1
  3. Concepción Martín Álvaro 1
  4. Jose Antonio Alarcón Pérez 2
  1. 1 Facultad de Odontología. Universidad Complutense de Madrid
  2. 2 Facultad de Odontología. Universidad de Granada
Revista:
Ortodoncia española: Boletín de la Sociedad Española de Ortodoncia

ISSN: 0210-1637

Ano de publicación: 2024

Volume: 62

Número: 2

Páxinas: 87-96

Tipo: Artigo

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Outras publicacións en: Ortodoncia española: Boletín de la Sociedad Española de Ortodoncia

Resumo

The aim of this study was to assess the neurofunctional alterations EMG) atrest and during clenching that occur after orthodontic correction of unilateral poste rior crossbites (UPCB) in 25 Class I patients aged 10 to 15 years. Surface electrodes were used to record electromyographic (EMG) activity of masticatory muscles before and after orthodontic therapy. EMG activity comparisons between the cross-bite and the non-crossbite side were performed before and after treatment. Pretreatment and posttreatment comparisons were performed within each side. At rest position there were no significant pre-posttreatment changes although the differences in the EMG activities between sides decreased. EMG activity of the pos terior temporalis was still high after treatment. During posttreatment clenching there was a significant increase in EMG activities of the masseters and anterior temporalis. The increase in the masseter activity equaled its activity to one of the temporalis that had dominated before treatment.

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