Study of the Impact of the Skeletal Facial Type on the Electromyographic Masseter / Temporal Ratio

Armando Ogalde Lamatta

Abstract: Aim: To evaluate the impact of the craniofacial architecture according to the ANB angle corrected by Miralles on the EMG activity of the masseter (Ms) and anterior temporal (Ta) muscles. Method: 62 individuals aged ranged 18 - 23 years, distributed by gender (24 men, 38 women), were studied. The facial morphology, according to Miralles, was determined from a lateral radiograph. All individuals underwent bilateral EMG examinations for the Ms and Ta muscles. Results: In the total sample, Ms presented a significant difference in voltage amplitude (p 1) reached 80% in the normo group. This percentage was lower in disto and mesio groups. Conclusions: The ANB angle, EMG, and the Ms/Ta voltage ratio represent useful tools to explore the function of Ms and Ta in different skeletal types. The Ms/Ta ratio is close to 1.5, which represents the synergistic working ratio between the Ms and Ta muscles for the normo group.

Keywords: ANB, EMG, SNA

How to Cite?: Armando Ogalde Lamatta, "Study of the Impact of the Skeletal Facial Type on the Electromyographic Masseter / Temporal Ratio", Volume 12 Issue 9, September 2023, International Journal of Science and Research (IJSR), Pages: 2096-2103, https://www.ijsr.net/getabstract.php?paperid=SR23902062410, DOI: https://dx.doi.org/10.21275/SR23902062410

Download Citation: APA | MLA | BibTeX | EndNote | RefMan