Awareness/relaxation training and transcutaneous electrical neural stimulation in the treatment of bruxism

Treacy, K.

doi:10.1046/j.1365-2842.1999.00381.x

Cited by 45 publications

(66 citation statements)

References 36 publications

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“…Under this aspect, transcutaneous electric nerve stimulation (TENS) deserves special attention because it presents no side effects and enables both pain reduction 5 and alteration in EMG activity 16 . Works on the effects of TENS on masticatory muscles show that it is an effective resource in the relief of pain and in the decrease of EMG activity of masticatory muscles at rest 1,2,6,21 , in the reduction of myoelectric activity of the jaw-closing muscles during the opening phase of the jaw in TMD patients 16 , and in the increase of muscular electrical activity recorded during clenching in TMD patients 1,2 . On the other hand, recent studies 15 did not present the same results.…”

Section: Temporomandibular Disordersmentioning

confidence: 99%

Effect of conventional TENS on pain and electromyographic activity of masticatory muscles in TMD patients

2004

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Temporomandibular disorders (TMD) are characterized by several signs and symptoms, such as pain and changes in the electrical activity of masticatory muscles. Considering that transcutaneous electrical nerve stimulation (TENS) is a resource indicated to promote analgesia, the objective of this study was to evaluate the effect of TENS on pain and electromyographic (EMG) activity of the jaw elevator muscles in TMD patients. This study evaluated 35 female volunteers: 19 TMD patients (mean age = 23.04 ± 3.5) and 16 normal subjects (mean age = 23.3 ± 3.0). Transcutaneous electrical nerve stimulation (conventional mode, 150 Hz) was applied once to each group for 45 minutes. Surface electromyography (gain of 100 times and 1 kHz sampling frequency) and the visual analogue scale (VAS) were applied before and immediately after TENS application. Both VAS data and root mean square (RMS) values were analyzed using Student's t-test. The TMD group, compared to the control group, showed higher EMG activity of the jaw elevator muscles at rest. No difference was observed between the groups regarding maximum voluntary clenching (MVC). In TMD patients, TENS reduced both pain and EMG activity of the anterior portion of the temporal muscle, increasing the activity of the masseter muscles during MVC. It is possible to conclude that a single TENS application is effective in pain reduction. However, it does not act homogeneously on the features of the electric activity of the muscles evaluated. DESCRIPTORS: Temporomandibular joint; Electromyography; Masticatory muscles; Transcutaneous electric nerve stimulation; Facial pain. RESUMO:A desordem temporomandibular (DTM) é caracterizada por diversos sinais e sintomas, como dor e alteração do sinal eletromiográfico dos músculos da mastigação. Considerando que a estimulação elétrica nervosa transcutânea (TENS) é um recurso indicado para promover analgesia, o objetivo deste trabalho foi avaliar o efeito da TENS na dor e na atividade eletromiográfica (EMG) dos músculos elevadores da mandíbula em indivíduos com DTM. Foram selecionados 35 voluntários do sexo feminino, 19 portadores de DTM (média de 23,04 anos ± 3,5) e 16 normais (média de 23,3 anos ± 3,0). A TENS (modo convencional, 150 Hz) foi aplicada uma vez em ambos os grupos, por 45 min. O exame EMG de superfície (ganho de 100 vezes e freqüência de amostragem de 1 kHz) e a escala visual analógica (EVA) foram realizados antes e imediatamente depois da aplicação da TENS. Os dados da EVA e os valores da "root mean square" (RMS) foram analisados pelo teste t de Student. Observou-se que, na situação de repouso, os indivíduos com DTM apresentam um aumento da atividade EMG dos músculos elevadores da mandí-bula em relação aos do grupo controle. Na contração voluntária máxima (CVM), não foram observadas diferenças entre os grupos. Nos portadores de DTM, a TENS reduziu a dor, a atividade EMG da porção anterior do músculo temporal e aumentou a atividade dos músculos masseteres durante a CVM. É possível concluir que apenas uma aplicação da TENS...

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Section: Temporomandibular Disordersmentioning

confidence: 99%

Effect of conventional TENS on pain and electromyographic activity of masticatory muscles in TMD patients

2004

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“…13 Treacy et al showed that muscular awareness relaxation training (MART) was more effective in reducing muscle activity and improving mouth-opening. 14 Núñez et al revealed that mouth-opening in patients with TMDs increased following application of LLL therapy and TENS. 15 Mazzetto et al showed that LLL therapy can be used as a supportive treatment in patients with TMDs to reduce pain and improve movement.…”

Section: Introductionmentioning

confidence: 99%

Comparative effectiveness of Low Level Laser therapy and Transcutaneous Electric Nerve Stimulation on Temporomandibular Joint Disorders

et al. 2017

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IntroductionTemporomandibular joint disorder (TMD) is a general term for clinical problems in temporomandibular joints (TMJs), masticatory muscles, and surrounding tissues, which manifest as limitations in motion and joint sounds. 1 TMD is the second most-common skeletal-muscular problem and one of the most common chronic problems involving orofacial pain, discomfort and disability. Approximately 75% of the population has several symptoms of TMD and 33% have at least one symptom. 2-5The etiology of TMD, especially muscle pain, is multifactorial and includes parafunctional habits, trauma, stress, heredity and occlusal factors 5 ; thus, conservative and reversible treatment, especially during initial periods, is recommended. 5,6 Several treatments have been suggested to control pain and symptoms. These include orthopedic stabilization, intraoral devices, medications (analgesics, muscle relaxants, antidepressants, and placebos) and physical therapy. 5 The aim of physical therapy is muscle relaxation, a decrease in pain, spasms, swelling and inflammation, and joint stability. Methods:In this single-blind study, 40 patients with temporomandibular disorders were randomly divided into four groups: TENS (TENSTem dental), LLL (diode 810 nm CW), sham-TENS, and sham-LLL. All subjects were examined and data on pain and tenderness in the temporomandibular joint (TMJ) and masticatory muscles (using the visual analogue scale) and mouth-opening (distance between incisal edges before feeling pain; mm) were collected before baseline (T1), after each session (T2-T5) and one month after the end of the sessions (T6)), and analyzed using repeated measure analysis of variance (ANOVA) and Bonferroni statistical tests. A P value < 0.05 was considered significant. Results:The decrease in pain (P = 0.000), tenderness (P = 0.000) and increase in mouth-opening ability (P = 0.002) was greater in the TENS and LLL groups than in the placebo groups. At the one-month follow-up, significant decrease in pain and tenderness was recorded in the TENS and LLL groups (P = 0.000). There was no significant differences between TENS and LLL and the placebo groups for maximum mouth-opening at the end of the study (P = 0.692). Conclusion: Using TENS or LLL therapy can improve TMD symptoms at least for the short term. Although the effects of the placebo played a role in improving symptoms, their effects were less important.

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“…Authors 21 then suggest that both therapies may be used as adjuvants for some types of TMD. Decreased myoelectric activity of jaw elevator muscles at rest as result of TENS has been previously described [8][9][10] . A pilot study was designed 21 to compare electromyographic biofeedback and TENS in patients with bruxism.…”

Section: Tens To Handle Painmentioning

confidence: 75%

“…Among them, transcutaneous electrical nerve stimulation (TENS) deserves special attention, because it is safe and provides decreased pain and electromyographic activity (EMG) of masticatory muscles at rest in TMD patients 7 . There are several studies on the effects of TENS therapy [8][9][10] . This study is a literature review on the application of TENS to TMD.…”

Section: Introductionmentioning

confidence: 99%

O uso da estimulação elétrica nervosa transcutânea na disfunção temporomandibular

Grossmann¹,

Tambara²,

Grossmann³

et al. 2012

Rev. dor

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Awareness/relaxation training and transcutaneous electrical neural stimulation in the treatment of bruxism

Cited by 45 publications

References 36 publications

Effect of conventional TENS on pain and electromyographic activity of masticatory muscles in TMD patients

Effect of conventional TENS on pain and electromyographic activity of masticatory muscles in TMD patients

Comparative effectiveness of Low Level Laser therapy and Transcutaneous Electric Nerve Stimulation on Temporomandibular Joint Disorders

O uso da estimulação elétrica nervosa transcutânea na disfunção temporomandibular

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