Banca de DEFESA: MILLA CERDEIRA BERNAT

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MILLA CERDEIRA BERNAT
DATE: 21/07/2023
TIME: 14:00
LOCAL: Híbrida - Sala de reunião nº 05 da FS e Plataforma Teams
TITLE:

“Electromyographic evaluation of the masseter and temporal muscles in tennis players using a mouthguard”

KEY WORDS:

"Athletes; Electromyography; Mouthguards; Tennis; Bruxism; Temporomandibular Joint Dysfunction Syndrome"

PAGES: 100
BIG AREA: Ciências da Saúde
AREA: Odontologia
SUMMARY:

“The duration of a tennis match has no time limit and can last several hours, requiring a lot of concentration from the athletes. During the activity, especially at times when the athlete needs more strength to carry out the movement, the muscles tend to contract more frequently and more intensely, generating tooth clenching, which can cause harmful effects to the muscles, joints and/or teeth. The mouthguard has the function of reducing the impact force during trauma, dissipating it uniformly and preventing injuries or reducing their consequences. The objective of this study was to analyze and compare the activity of the masseter and temporal muscles of amateur tennis players through electromyography (EMG), before and during training, with and without the use of a personalized mouthguard and to correlate the electromyographic data with anxiety, stress perceived and oral behaviors. Data from 26 athletes were collected through questionnaires and clinical examination, followed by electromyography. The data obtained were submitted to statistical analysis using the Wilcoxon, Mann-Whitney and Friedman tests, followed by the post hoc Nemenyi test with p<0.05. In the evaluation of the EMG at rest on the presence or absence of the protector, it was verified that both for the masseter and for the temporal, the EMG activity with the protector was significantly higher than without (p=0.007 and 0.038 respectively). In the temporal muscle, there was a higher average of activity with protector compared to without protector (p=0.028). The Mann-Whitney test showed that evaluating the masseter and temporal together bilaterally, there was an effect on the average of the 10 peaks without protector (U=200,000, p=0.012) and with (U=194,000, p=0.008). Spearman's test showed positive correlations between phasic contractions per minute of the bilateral temporal with protector and symptoms of anxiety (r=0.566, p=0.003), depression (r=0.614, p=0.001) and perceived stress (r=0.566, p=0.003) and negative correlation between the mean of the 10 bilateral masseter peaks without protector during activity and perceived stress (r=-0.436, p=0.0026). The findings and limitations of this study concluded that the mouthguard increased the activity of the masticatory muscles in some situations, suggesting that more studies be carried out for a more indepth evaluation of its use during tennis practice.”

BANKING MEMBERS:
Externo à Instituição - ELI LUÍS NAMBA - FIASP
Presidente - 3157942 - EVELYN MIKAELA KOGAWA
Externa à Instituição - INGRID AQUINO AMORIM - UCB
Interno - 1291230 - RODRIGO ANTONIO DE MEDEIROS