Author | dc.contributor.author | Fuentes del Campo, Aler | |
Author | dc.contributor.author | Miralles Lozano, Rodolfo | |
Author | dc.contributor.author | Santander Navarro, Hugo | |
Author | dc.contributor.author | Gutiérrez Reyes, Mario | |
Author | dc.contributor.author | Bull Simpfendorfer, Ricardo | |
Author | dc.contributor.author | Martin, Conchita | |
Admission date | dc.date.accessioned | 2015-12-08T22:20:31Z | |
Available date | dc.date.available | 2015-12-08T22:20:31Z | |
Publication date | dc.date.issued | 2015 | |
Cita de ítem | dc.identifier.citation | Acta Odontológica Scandinávica Volumen: 73 Número: 8 (2015) | en_US |
Identifier | dc.identifier.other | DOI: 10.3109/00016357.2015.1030767 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/135516 | |
General note | dc.description | Artículo de publicación ISI | en_US |
General note | dc.description | Sin acceso a texto completo | |
Abstract | dc.description.abstract | Objective. This study evaluated the effect of a natural mediotrusive contact on the
electromyographic (EMG) activity of the anterior temporalis and sternocleidomastoid muscles during
chewing in healthy subjects. Materials and methods. The study sample included two groups of 15
subjects each (Group 1: with natural mediotrusive contact; Group 2: without natural mediotrusive
contact). Bilateral surface EMG activity was recorded on anterior temporalis and
sternocleidomastoid muscles during unilateral chewing of a half cookie and unilateral chewing of a
piece of apple. Anterior temporalis and sternocleidomastoid muscle activity was normalized against
activity recorded during maximal voluntary clenching in intercuspal position and maximal intentional
isometric head-neck rotation to each side, respectively. The partial and total asymmetry indexes
were also calculated. Data were analyzed using Mann-Whitney, Wilcoxon and unpaired t-test.
Results. EMG activity of anterior temporalis and sternocleidomastoid muscles showed no significant
difference between the groups. EMG activity of anterior temporalis was similar between working
and non-working sides during chewing in both groups. EMG activity of sternocleidomastoid muscle
was higher in the working side than in the non-working side in Group 2 subjects. Asymmetry
indexes were not significantly different between groups. Conclusions. The similar EMG pattern and
asymmetry indexes observed suggest the predominance of central nervous control over peripheral
inputs on anterior temporalis and sternocleidomastoid motor neuron pools. | en_US |
Patrocinador | dc.description.sponsorship | Faculty of Dentistry, University of Chile | en_US |
Lenguage | dc.language.iso | en | en_US |
Publisher | dc.publisher | Taylor & Francis | en_US |
Keywords | dc.subject | Electromyography | en_US |
Keywords | dc.subject | Mastication | en_US |
Keywords | dc.subject | Masticatory muscles | en_US |
Keywords | dc.subject | Neck muscles | en_US |
Título | dc.title | Effect of natural mediotrusive contact on electromyographic activity of jaw and cervical muscles during chewing | en_US |
Document type | dc.type | Artículo de revista | |