A new biofeedback approach for the control of awake bruxism and chronic migraine headache: utilization of an awake posterior interocclusal device.

BACKGROUND: The relationship of bidirectional comorbidity between chronic migraine and pain in the cephalic segment led us to evaluate the improvement in reducing the pain in patients diagnosed with chronic migraine headache and awake bruxism, when undergoing treatment with a partial posterior interocclusal device designed for the management and control of awake bruxism through biofeedback. METHODS: Seventy-four patients were evaluated during the following periods: pretreatment, seven, thirty, ninety, one hundred and eighty days, and one year. The evaluation was carried out by measuring the pain in the pretreatment period and pain reduction after awake bruxism treatment, using clinical evaluation and numerical scales for pain. RESULTS: Most of the patients who complained of headache migraine pain, masticatory myofascial pain, temporomandibular joint and neck pain experienced a significant reduction in overall pain, including headaches, between t0 and t30 (p<0.0001). After 30 days of using the device, it was observed that the improvement remained at the same level without any recurrence of pain up to t90. At t180 and t360, it was observed that even with the device withdrawal (at t90) the improvement remained at the same level. CONCLUSION: The utilization of a posterior interocclusal device designed for the management and control of awake bruxism through biofeedback seems to contribute to the reduction of pain (including migraine headache) in the majority of patients, and, even with the device withdrawal (at t90), the improvement remained at the same level, suggesting the patients succeeded in controlling their awake bruxism and consequently the pains.

A new biofeedback approach for the control of awake bruxism and chronic migraine headache: utilization of an awake posterior interocclusal device / Uma nova abordagem via biofeedback para o controle do bruxismo de vigília e de enxaqueca crônica: utilização de um dispositivo interoclusal posterior em vigília

ABSTRACT Background: The relationship of bidirectional comorbidity between chronic migraine and pain in the cephalic segment led us to evaluate the improvement in reducing the pain in patients diagnosed with chronic migraine headache and awake bruxism, when undergoing treatment with a partial posterior interocclusal device designed for the management and control of awake bruxism through biofeedback. Methods: Seventy-four patients were evaluated during the following periods: pretreatment, seven, thirty, ninety, one hundred and eighty days, and one year. The evaluation was carried out by measuring the pain in the pretreatment period and pain reduction after awake bruxism treatment, using clinical evaluation and numerical scales for pain. Results: Most of the patients who complained of headache migraine pain, masticatory myofascial pain, temporomandibular joint and neck pain experienced a significant reduction in overall pain, including headaches, between t0 and t30 (p<0.0001). After 30 days of using the device, it was observed that the improvement remained at the same level without any recurrence of pain up to t90. At t180 and t360, it was observed that even with the device withdrawal (at t90) the improvement remained at the same level. Conclusion: The utilization of a posterior interocclusal device designed for the management and control of awake bruxism through biofeedback seems to contribute to the reduction of pain (including migraine headache) in the majority of patients, and, even with the device withdrawal (at t90), the improvement remained at the same level, suggesting the patients succeeded in controlling their awake bruxism and consequently the pains.

RESUMO Introdução: A relação de comorbidade bidirecional entre enxaqueca crônica e dor no segmento cefálico nos levou a avaliar a melhora na redução da dor em pacientes diagnosticados com cefaleia crônica de enxaqueca e bruxismo de vigília, quando submetidos a tratamento com dispositivo interoclusal posterior parcial projetado para o manejo e o controle do bruxismo acordado através de biorretroalimentação (biofeedback). Métodos: Setenta e quatro pacientes foram avaliados durante os seguintes períodos: pré-tratamento, sete, trinta, noventa e cento e oitenta dias, e um ano. A avaliação foi realizada por meio da avaliação da dor no período pré-tratamento e redução da dor após o tratamento do bruxismo de vigília, através de avaliação clínica e escalas numéricas de dor. Resultados: A maioria dos pacientes que se queixou de dor de cabeça com enxaqueca, dor miofascial mastigatória, articulação temporomandibular e dor no pescoço sofreu uma redução significativa na dor geral, incluindo dores de cabeça, entre t0 e t30 (p<0,0001). Após 30 dias de uso do dispositivo, observou-se que a melhora permaneceu no mesmo nível, sem recorrência da dor até t90. Em t180 e t360, observou-se que, mesmo com a retirada do dispositivo (em t90), a melhoria permaneceu no mesmo nível. Conclusão: A utilização de um dispositivo interoclusal posterior projetado para o controle do bruxismo de vigília através de biofeedback parece contribuir para a redução da dor (incluindo enxaqueca) na maioria dos pacientes, e, mesmo com a retirada do dispositivo (t90), a melhora manteve-se no mesmo nível, sugerindo que os pacientes conseguiram controlar o seu bruxismo de vigília e a dor associada a esse hábito.

Additional Effects of a Physical Therapy Protocol on Headache Frequency, Pressure Pain Threshold, and Improvement Perception in Patients With Migraine and Associated Neck Pain: A Randomized Controlled Trial.

OBJECTIVE: To evaluate the additional effect provided by physical therapy in migraine treatment. DESIGN: Randomized controlled trial. SETTING: Tertiary university-based hospital. PARTICIPANTS: Among the 300 patients approached, 50 women (age range, 18-55y) diagnosed with migraine were randomized into 2 groups: a control group (n=25) and a physiotherapy plus medication group (n=25) (N=50). INTERVENTIONS: Both groups received medication for migraine treatment. Additionally, physiotherapy plus medication patients received 8 sessions of physical therapy over 4 weeks, comprised mainly of manual therapy and stretching maneuvers lasting 50 minutes. MAIN OUTCOME MEASURES: A blinded examiner assessed the clinical outcomes of headache frequency, intensity, and self-perception of global change and physical outcomes of pressure pain threshold and cervical range of motion. Data were recorded at baseline, posttreatment, and 1-month follow-up. RESULTS: Twenty-three patients experienced side effects from the medication. Both groups reported a significantly reduced frequency of headaches; however, no differences were observed between groups (physiotherapy plus medication patients showed an additional 18% improvement at posttreatment and 12% improvement at follow-up compared with control patients, P>.05). The reduction observed in the physiotherapy plus medication patients was clinically relevant at posttreatment, whereas clinical relevance for control patients was demonstrated only at follow-up. For pain intensity, physiotherapy plus medication patients showed statistical evidence and clinical relevance with reduction posttreatment (P<.05). In addition, they showed better self-perception of global change than control patients (P<.05). The cervical muscle pressure pain threshold increased significantly in the physiotherapy plus medication patients and decreased in the control patients, but statistical differences between groups were observed only in the temporal area (P<.05). No differences were observed between groups regarding cervical range of motion. CONCLUSIONS: We cannot assume that physical therapy promotes additional improvement in migraine treatment; however, it can increase the cervical pressure pain threshold, anticipate clinically relevant changes, and enhance patient satisfaction.

O efeito do laser de baixa intensidade no tratamento das cefaleias cervicogênicas: apresentação de sete casos / Low-intensity laser to treat cervicogenic headaches: presentation of seven cases.

JUSTIFICATIVA E OBJETIVOS: A cefaleia cervicogênica é caracterizada por dor nucal e/ou fronto-temporal desencadeada por distúrbio na região do pescoço, C1, C2 ou C3. A dor é unilateral, iniciada na região da nuca e referida na região fronto-temporal sendo episódica ou crônica. O bloqueio do nervo occipital maior ou menor é feito com duas finalidades: terapêutica e diagnóstica. O objetivo deste estudo foi verificar o efeito do laser de baixa intensidade (GaAlAs) aplicado na região do nervo occipital maior e menor e/ou da raiz C2 do lado sintomático no tratamento das cefaleias cervicogênicas, substituindo o bloqueio convencional.RELATOS DOS CASOS: Foram encaminhados para o procedimento sete pacientes, do Ambulatório de Cefaleia do Hospital de Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo. Esses pacientes foram submetidos às aplicações com o laser (D = 60J/cm², 1 vez/semana durante 4 semanas) do lado sintomático em 8 pontos-gatilho localizados através da palpação na região dos nervos occipital maior e menor. Esses pacientes preencheram um diário de dor e foram feitas 4 avaliações: A0 (antes da 1a aplicação), A1 (logo após a última aplicação), A2 e A3 (30 e 60 dias após a última aplicação). CONCLUSÃO: Laser de baixa intensidade promoveu a diminuição da intensidade e frequência da sintomatologia, mas de acordo com os resultados sugere-se que alterações na potência e doses sejam feitas a fim de se buscar um protocolo mais exato.

BACKGROUND AND OBJECTIVES: Cervicogenic headache is characterized by nuchal and / or fronto-temporal pain triggered by neck region disorder, C1, C2 or C3. Pain is unilateral, starts in the nuchal region and refers to fronto-temporal region, being episodic or chronic. Major or minor occipital nerve block is performed with two goals: therapeutic and diagnostic. This study aimed at observing the effect of low-intensity laser (GaAIAs) applied to major and minor occipital nerve and / or C2 root at the symptomatic side to treat cervicogenic headaches, replacing conventional block.CASE REPORTS: Seven patients of the Headache Ambulatory, Clinicas Hospital, School of Medicine of Ribeirão Preto, University of São Paulo, were referred to the procedure. Patients were submitted to laser applications (D = 60J/cm², once a week for four weeks) at the symptomatic side in 8 trigger-points identified through palpation of major and minor occipital nerves region. Patients filled a pain log and 4 evaluations were made: A0 (before first application), A1 (soon after last application), A2 and A3 (30 and 60 days after last application). CONCLUSION: Low-intensity laser has decreased symptoms intensity and frequency, but according to results we suggest that changes in potency and dosages are made to look for a more accurate protocol.