Effects of transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorders: A placebo-controlled study

Monaco, Annalisa; Sgolastra, Fabrizio; Ciarrocchi, Irma; Cattaneo, R

doi:10.1016/j.jelekin.2011.12.008

Cited by 33 publications

(32 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previously [17], we showed that MTS is effective in reducing the sEMG activity of masticatory muscles; in the present study we assess, the effect of motor threshold of stimulation (MTS) TENS, compared to sensory threshold application (STS) TENS on the muscular activity of masticatory and neck muscles, of patients with TMD.…”

Section: Introductionmentioning

confidence: 98%

“…In clinical practice and research investigation, TENS has been administered at a variety of intensities as well of threshold of stimulation, both for antalgic [13,14] and relaxing purposes [15-17]. However, the effectiveness of TENS in reducing the sEMG activity of masticatory muscles, in patients with TMD, is still a debated question: differences, in terms of settings and types of TENS applications, among studies have been suggested to play an important role in explaining the contrasting findings, that have been observed in the literature [18-20]: interestingly, two controlled studies [15,17], that recruited patients with symptomatic and asymptomatic TMD, respectively, using the same treatment design, that consisted of a 60 min application of low intensity TENS with a motor threshold of stimulation (MTS), reported a significant reduction of sEMG activity of masticatory muscles; in contrast, another controlled study, that recruited patients with symptomatic TMD [16], using a 45 min application of high intensity TENS with a sensorial threshold of stimulation (STS), observed a significant reduction of pain intensity, and reported no significant differences with regard to the muscular activity in the group receiving TENS application.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison between sensory and motor transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorder: a controlled clinical trial

Monaco

Sgolastra

Pietropaoli

et al. 2013

BMC Musculoskelet Disord

Self Cite

View full text Add to dashboard Cite

BackgroundThe purpose of the present controlled clinical trial was to assess the effect of a single 60 min application of transcutaneous electrical nervous stimulation (TENS) at sensory stimulation threshold (STS), compared to the application of motor stimulation threshold (MTS) as well as to untreatment, on the surface electromyographic (sEMG) and kinesiographic activity of patients with tempormanbibular disorder (TMD).MethodsSixty female subjects, selected according to the inclusion/exclusion criteria, suffering from unilateral TMD in remission were assigned to MTS, STS or untreatment. Pre- and post-treatment differences in the sEMG activity of temporalis anterior (TA), masseter (MM), digastric (DA) and sternocleidomastoid muscles (SCM), as well in the interocclusal distance (ID), within group were tested using the Wilcoxon test, while differences among groups were assessed by Kruskal-Wallis test; the level of significance was set at p ≤ 0.05.ResultsSignificant pre- and post-treatment differences were observed in MTS and STS groups, for TA and MM of both sides; no significant difference was detected between MTS and STS groups. Kinesiographic results showed that the vertical component of ID was significantly increased after TENS in MTS and STS groups.ConclusionsSTS TENS could be effective, as well as MTS, in reduce the sEMG activity of masticatory muscles and to improve the ID of TMD patients in remission. Future studies are needed to confirm the results of the present study. Clinical relevance. The present study demonstrates that the application of TENS is effective in reduce the sEMG activity, as well as in increasing the ID of patients with TMD; our study did not support superior effectiveness of MTS or STS.Trial registrationClinicalTrials.gov: NCT01832207

show abstract

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Comparison between sensory and motor transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorder: a controlled clinical trial

Monaco

Sgolastra

Pietropaoli

et al. 2013

BMC Musculoskelet Disord

Self Cite

View full text Add to dashboard Cite

show abstract

“…According to the adaptation to pain theoretical model adopted in this study (12,24,25) , the expected behavior of muscle activity during pain relief, in the absence of voluntary muscle function, that is, in mandibular rest, would be reduced hyperactivity of mandibular elevator muscles among all participants. The presence of muscle pain, according to the theory, generates an afferent signal, known as a reflex, which increases muscle activity, generating stress or fatigue, which would cause the muscle to present more pain and thus feed the pain-spasm-pain cycle.…”

Section: Discussionmentioning

confidence: 99%

“…In one study, 60 volunteers with TMD were submitted to TENS for 60 minutes and the results showed reduced EMG activity in the masticatory muscles (25) . Another study compared the application of two types of TENS in individuals with TMD.…”

Section: Discussionmentioning

confidence: 99%

Propriedades clinimétricas da variável eletromiográfica duty factor para desordem temporomandibular

Nitsch

Mella

Chaves

et al. 2015

Audiol., Commun. Res.

View full text Add to dashboard Cite

Purpose: To assess the reliability and responsiveness of the duty factor variable for assessing pain originating from temporomandibular disorders. Methods: The sample comprised 20 female volunteers, mean age 29 years 6 months (± 9.2), with a diagnosis of myogenic temporomandibular dysfunction according to the Research Diagnostic Criteria for Temporomandibular Disorders. Electromyographic (EMG) signals were collected at three times: during mandibular rest; in the presence of moderate to severe pain; and when pain was reduced to mild or absent after 45 minutes of transcutaneous electrical nerve stimulation (TENS).Electromyographic signals during mandibular rest were processed to obtain values for muscle activation time greater than 10% of maximum bite force. Reliability was tested with intraclass correlation for repeated data before analgesia. Standard error of measurement (SEM) and minimum detectable change (MDC) were also computed to determine reliability. Responsiveness of duty factor was analyzed between EMG recordings, before and after analgesia, by calculating effect size (ES) and standardized response mean (SRM). Results: Duty factor presented intraclass correlation coefficient above 0.75 for all muscles. Standard error of measurement ranged from 4% to 8% and minimum detectable change from 5% to 12%. Regarding the responsiveness of duty factor to pain, effect size values fell between 0.2 and 0.5 and SRM values were greater than 0.8. Conclusion: Duty factor showed excellent reliability.However, responsiveness to TMD-related pain was low as expressed by effect size and excellent as expressed by standardized response mean. O erro padrão foi entre 4% e 8% e a mínima mudança detectável entre 5% e 12%. Na responsividade da variável para a dor, o tamanho de efeito obteve valores entre 0,2 e 0,5 e a média da resposta padronizada, valores acima de 0,8. Conclusão: O duty factor apresentou confiabilidade excelente e responsividade à dor da desordem temporomandibular baixa para tamanho de efeito e excelente para média da resposta padronizada.

show abstract

“…However, the influence of this therapy on the tonus of masticatory muscles should be further investigated, considering that the evidence regarding the improvement of clinical parameters, e.g., reported pain, jaw movement and electromyography (EMG) activity, are divergent and controversial 4 , 6 , 18 , 22 .…”

Section: Introductionmentioning

confidence: 99%

Short-term transcutaneous electrical nerve stimulation reduces pain and improves the masticatory muscle activity in temporomandibular disorder patients: a randomized controlled trial

et al. 2017

View full text Add to dashboard Cite

Studies to assess the effects of therapies on pain and masticatory muscle function are scarce. Objective To investigate the short-term effect of transcutaneous electrical nerve stimulation (TENS) by examining pain intensity, pressure pain threshold (PPT) and electromyography (EMG) activity in patients with temporomandibular disorder (TMD).Material and Methods Forty patients with myofascial TMD were enrolled in this randomized placebo-controlled trial and were divided into two groups: active (n=20) and placebo (n=20) TENS. Outcome variables assessed at baseline (T0), immediately after (T2) and 48 hours after treatment (T1) were: pain intensity with the aid of a visual analogue scale (VAS); PPT of masticatory and cervical structures; EMG activity during mandibular rest position (MR), maximal voluntary contraction (MVC) and habitual chewing (HC). Two-way ANOVA for repeated measures was applied to the data and the significance level was set at 5%.Results There was a decrease in the VAS values at T1 and T2 when compared with T0 values in the active TENS group (p<0.050). The PPT between-group differences were significant at T1 assessment of the anterior temporalis and sternocleidomastoid (SCM) and T2 for the masseter and the SCM (p<0.050). A significant EMG activity reduction of the masseter and anterior temporalis was presented in the active TENS during MR at T1 assessment when compared with T0 (p<0.050). The EMG activity of the anterior temporalis was significantly higher in the active TENS during MVC at T1 and T2 when compared with placebo (p<0.050). The EMG activity of the masseter and anterior temporalis muscle was significantly higher in the active TENS during HC at T1 when compared with placebo (p<0.050).Conclusions The short-term therapeutic effects of TENS are superior to those of the placebo, because of reported facial pain, deep pain sensitivity and masticatory muscle EMG activity improvement.

show abstract

Effects of transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorders: A placebo-controlled study

Cited by 33 publications

References 34 publications

Comparison between sensory and motor transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorder: a controlled clinical trial

Comparison between sensory and motor transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorder: a controlled clinical trial

Propriedades clinimétricas da variável eletromiográfica duty factor para desordem temporomandibular

Short-term transcutaneous electrical nerve stimulation reduces pain and improves the masticatory muscle activity in temporomandibular disorder patients: a randomized controlled trial

Contact Info

Product

Resources

About