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Article

Effects of Rapid Palatal Expansion on Chewing Biomechanics in Children with Malocclusion: A Surface Electromyography Study

1
Department of Information Engineering, University of Padova, Via Gradenigo, 6-35121 Padua, Italy
2
Department of Neuroscience, School of Dentistry, University of Padua, Via Giustiniani, 2-35128 Padua, Italy
3
Department of Medicine, University of Padova, Via Giustiniani, 2-35128 Padova, Italy
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(7), 2086; https://doi.org/10.3390/s20072086
Received: 10 February 2020 / Revised: 1 April 2020 / Accepted: 3 April 2020 / Published: 7 April 2020
(This article belongs to the Special Issue Sensors in Dentistry)
Malocclusion during childhood may affect both morphology and masticatory function and could greatly affect the subsequent growth and development of the jaws and face. The purpose of this study was to evaluate the efficiency of surface electromyography in describing the effects of the rapid palatal expansion (RPE) on Masseter (M) and Temporalis Anterior (T) muscles’ activity in 53 children with different types of malocclusion: bilateral posterior crossbite (BPcb), underdeveloped maxillary complex without crossbite (NOcb) and unilateral posterior crossbite on the right (UPCBr) and on the left (UPCBl). The muscular activities during chewing tasks were assessed bilaterally before and after RPE application and three months after removal. Both the envelope’s peak (µV) and its occurrence (% of chewing task) were extracted from the surface electromyography signal. Our results showed the presence of statistically significant differences (p < 0.05) on temporomandibular joint muscles, across different assessments, in all the tested populations of subjects. Surface electromyography demonstrated a relationship between the correction of a maxillary transverse discrepancy and the restoration of a muscle’s activation patterns comparable to healthy subjects for both T and M. View Full-Text
Keywords: posterior crossbite; children; electromyography; rapid palatal expansion posterior crossbite; children; electromyography; rapid palatal expansion
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MDPI and ACS Style

Spolaor, F.; Mason, M.; De Stefani, A.; Bruno, G.; Surace, O.; Guiotto, A.; Gracco, A.; Sawacha, Z. Effects of Rapid Palatal Expansion on Chewing Biomechanics in Children with Malocclusion: A Surface Electromyography Study. Sensors 2020, 20, 2086. https://doi.org/10.3390/s20072086

AMA Style

Spolaor F, Mason M, De Stefani A, Bruno G, Surace O, Guiotto A, Gracco A, Sawacha Z. Effects of Rapid Palatal Expansion on Chewing Biomechanics in Children with Malocclusion: A Surface Electromyography Study. Sensors. 2020; 20(7):2086. https://doi.org/10.3390/s20072086

Chicago/Turabian Style

Spolaor, Fabiola; Mason, Martina; De Stefani, Alberto; Bruno, Giovanni; Surace, Ottavia; Guiotto, Annamaria; Gracco, Antonio; Sawacha, Zimi. 2020. "Effects of Rapid Palatal Expansion on Chewing Biomechanics in Children with Malocclusion: A Surface Electromyography Study" Sensors 20, no. 7: 2086. https://doi.org/10.3390/s20072086

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