Analysis of masticatory efficiency by electromyographic activity of masticatory muscles after surgical treatment of zygomatic-orbital complex fractures

Author(s)

Pepato, Andre Oliveira ; Palinkas, Marcelo ; Hallak Regalo, Simone Cecilio ; Ribeiro, Michel Campos ; Semeghini Souza, Tatiana Adamov ; Siessere, Selma ; de Sousa, Luiz Gustavo ; Sverzut, Cassio Edvard ; Trivellato, Alexandre Elias

• Document type: Journal article
• Source: INTERNATIONAL JOURNAL OF STOMATOLOGY & OCCLUSION MEDICINE; v. 6, n. 3, p. 6-pg., 2013-09-01.

Abstract

Fractures of the zygomatic-orbital complex are related to oral and maxillofacial trauma and lead to important disorders that affect an individual from a functional and aesthetic point of view. The aim of this study was to perform a medium-term evaluation of the masticatory efficiency following the surgical reconstruction of generated fractures of masseter and temporal muscles using EMG analysis. The non-habitual electromyographic records of masseter and temporal muscles of 15 male subjects were examined for 16 weeks after surgical reconstruction of the zygomatic-orbital complex, which was achieved using the intraoral access technique and rigid internal fixation of the zygomatic-maxillary pillar. The resulting electromyographic data were evaluated using SPSS 19.0 software for Windows. At a 5 % significance level (p < 0.05) there was a significant difference in the efficiency of masticatory cycles over a period of 16 weeks. The reconstruction of the zygomatic-orbital complex via surgical treatment improved the masticatory efficiency of individuals. (AU)

• FAPESP's process: 07/07572-9 - Study of the bite force, masticatory efficiency, electromyography of the masticatory muscles and the mandibular function in patients submitted to surgical treatment of the mandible and zygomatic-orbital complex fractures.
• Grantee: Alexandre Elias Trivellato
• Support Opportunities: Regular Research Grants