Impacto do bruxismo no limiar de dor à pressão da musculatura mastigatória de mulheres com migrânea

Abstract

Bruxism is defined as a repetitive activity of the mastigatory musculature, characterized by clenching or grinding of the teeth and / or supporting or thrusting of the mandible. Despite the high prevalence of high prevalence of bruxism among patients with migraine, little is known about the implications of the association of these comorbidities. This research aimed to evaluate the prevalence of bruxism in women with episodic migraine, as well as to evaluate the influence of these on the threshold of pain to the pressure of the masticatory muscles of the same. The present study was carried out in a population with migraine associated or not with sleep bruxism and in wakefulness evaluating the Pressure Pain Threshold, through algometry, in female patients. A total of 250 candidates were evaluated, and of these, only 86 fulfilled all the prerequisites required by the inclusion criteria. The patients were divided into four groups: group 1 (n = 28), patients without bruxism; group 2 (n = 17), patients with bruxism in wakefulness; group 3 (n = 9), patients with bruxism at night and group 4 (n = 32), patients with bruxism at night and at night. Chi-square was used to evaluate the significance of the number of patients with bruxism in the sample and the Student's t-test to analyze the patient's pain threshold. There was no statistically significant difference between temporal muscle thresholds (p = 0.25) and masseter (p = 0.34) between the groups (without and with bruxism). It can be concluded that bruxism does not influence the pain threshold to the pressure of women who have attacks of episodic migraine.