Effect of Massage Therapy and Occlusal Splint Therapy on the Electromyographic Activity and Mandibular Range of Motion in Individuals With Temporomandibular Disorder

Study Overview
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Brief Summary
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The objectives of this study were to investigate the effects of massage therapy and occlusal splint therapy in the electromyographic activity and mandibular range of motion (ROM) in individuals with temporomandibular disorder (TMD) and compare the results with those obtained in a group of individuals without this disorder. Twenty-eight volunteers with TMD were randomly distributed into two groups, massage therapy and occlusal splint. Both treatments lasted 4 weeks. Fourteen individuals without TMD were consecutively allocated to the control group. The Fonseca's anamnestic index was used to characterize TMD and allocate the volunteers to either the intervention groups or control group. The electromyographic activity and Mandibular ROM was evaluated before and after treatment using a digital caliper. Two-way analysis of variance with the Bonferroni test was used for inter and intragroup comparisons (level of significance was set to 5%). Cohen's d was used to calculate the effect size.

Conditions
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Temporomandibular Disorder

Intervention / Treatment
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* Other: Massage
* Other: Occlusal splint


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: male and female volunteers aged 18 to 40 years Exclusion Criteria: occurrence of missing teeth current use of orthodontic appliance history of systemic or joint disease current use of analgesic, anti-inflammatory agent or muscle relaxant and currently undergoing physical therapy.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Massage group<br>The massage group was submitted to three weekly 30-minute sessions of massage of the muscles of mastication over four consecutive weeks. | Other: Massage<br> <br> |
| Experimental: The occlusal splint group<br>The occlusal splint group was submitted to treatment with an occlusal splint for four weeks. | Other: Occlusal splint<br> <br> |
| No Intervention: Control group<br>The control group was not submitted to any form of intervention and was evaluated on two occasions, with a four-week interval between evaluations. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mandibular range of motion | Mandibular range of motion(maximum active mouth opening, and right and left lateral excursion) was evaluated by a blinded examiner on two occasions (before and after treatment) using a digital caliper. | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Electromyographic activity | Electromyographic activity in the masseter and anterior temporal muscles. The right and left masseter and anterior temporal muscles were analyzed with surface EMG. | 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Physical Therapy Modalities, Facial Pain, Orthodontic Appliances