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Πέμπτη 21 Σεπτεμβρίου 2017

Bite force and EMG evaluation after cranioplasty in patients with craniosynostosis

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Publication date: Available online 21 September 2017
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Markus Martini, Valentin Wiedemeyer, Nils Heim, Martina Messing-Jünger, Sabine Linsen
ObjectiveThis long-term follow-up investigation aimed to assess masticatory muscle function in 15 craniosynostosis patients with detachment of the temporal muscle during fronto-orbital Advancement 6 years after cranioplasty compared to a non-operative stomatognathic healthy collective at the same age (n = 25).Study designThe follow-up assessment for the operative children occurred on average 5.2±1.7 years post-operation at the age of 7±1.6 years. The maximum bite force was assessed in addition to the bilateral function of both temporal and masseter muscles, which were analyzed using superficial electromyography.ResultsThe maximum bite force was 257±89 N respectively 255±88 N (right/left) in the group of operative children and 212±61 N respectively 203±57 N (right/left) in the control group, without clinical relevant difference between groups. The surface EMG signal of the temporal muscle correlated positively with the bite force and showed a slightly lower average resting tone activity in the control group, while the muscle fatigue was slightly faster in the operative children for both muscles without statistically significant difference between the two groups.ConclusionThere was no measurable dysfunction in the temporal muscle after the operative correction of craniosynostosis in comparison to a healthy norm population of children.



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