Trial reportRevista da Associacao Medica Brasileira (1992)2025
Comparison of the effectiveness of three different conservative methods in myogenous temporomandibular disorders.
Trial report in Revista da Associacao Medica Brasileira (1992), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe aim of this study was to compare the effectiveness of exercise, transcutaneous electrical nerve stimulation, and manual therapy on pain intensity, maximum mouth opening, and masticatory muscle activity-during chewing of the masseter and temporalis anterior in myogenous temporomandibular disorders.
methodsA total of 51 myogenous temporomandibular disorders patients were randomly assigned to three groups: exercise group, transcutaneous electrical nerve stimulation group, and manual therapy group. For 6 weeks, exercise group received exercise only, transcutaneous electrical nerve stimulation group received exercise+transcutaneous electrical nerve stimulation, and manual therapy group received exercise+manual therapy. At baseline and after 6-week treatment, pain intensity was assessed using a visual analog scale, maximum mouth opening using a millimeter ruler, and masticatory muscle activity-during chewing of the masseter and temporalis anterior using surface electromyography.
resultsAfter treatment, significant improvements in pain intensity, maximum mouth opening, and masticatory muscle activity-during chewing values were found in all the three groups. The greatest improvements were seen in manual therapy group. The decreases in pain intensity and increases in masticatory muscle activity-during chewing values were statistically significantly higher in transcutaneous electrical nerve stimulation group than in exercise group (p<0.05). The increases in maximum mouth opening were similar in transcutaneous electrical nerve stimulation group and exercise group.
conclusionExercise is an effective method for improving pain intensity, maximum mouth opening, and masticatory muscle activity-during chewing in myogenous temporomandibular disorders. Combining exercise with manual therapy may provide the highest therapeutic effect on these parameters. Combining exercise with transcutaneous electrical nerve stimulation may also lead to further improvements in pain intensity and masticatory muscle activity-during chewing.
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