Therapeutic Response of Ultrasound and Muscular Stretching in Temporomandibular Disorder Patients

Not Applicable

Completed

• Conditions: Temporomandibular Joint Disorders
• Interventions: Other: Ultrasound associated with stretching; Other: Ultrasound; Other: Placebo

• Registration Number: NCT02139735
• Lead Sponsor: Universidade Federal de Santa Maria

Brief Summary

The combination of ultrasound and muscular stretching may have positive effects on pain relief and on the balance of the masticatory muscles activity.

Detailed Description

This study aimed to evaluate the therapeutic response of ultrasound (US) and ultrasound associated with stretching of the masticatory muscles on the pressure pain threshold and the electrical activity of masseter and anterior temporal muscles in Temporomandibular Disorder (TMD) patients . The study included 18 women with TMD diagnosed by the instrument Research Diagnostic Criteria for Temporomandibular Disorders (RDC / TMD). The pressure pain threshold, evaluated through algometry, and the electrical activity of the masticatory muscles were evaluated, by means of surface electromyography, before and immediately after the therapeutic procedures. The volunteers underwent three different interventions: ultrasound, ultrasound associated with stretching and ultrasound placebo, with a 1-week of minimum interval between them.

Study Timeline

• Study Start: 2012-03
• Primary Completion: 2013-06
• Study Completion: 2014-03
• Status Verified: 2014-05
• Study First Submitted: 2014-05-09
• Study First Submitted QC: 2014-05-13
• Last Update Submitted: 2014-05-13
• Study First Posted: 2014-05-15
• Last Update Posted: 2014-05-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 18

Inclusion Criteria

• diagnosis of myogenic or mixed TMD according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC / TMD)
• women aged 20 to 35 years.

Exclusion Criteria

• psychomotor impairment ;
• history of orthopedic trauma involving the temporomandibular region , orofacial surgery or poor training ;
• analgesics , anti-inflammatories , muscle relaxants , antidepressants ;
• presence of acute TMJ pain ( last 3 months) ;
• have perform physical therapy or speech therapy for the past 6 months;
• periods of the end of the menstrual cycle (7 days prior to menstruation ) and onset of menstruation ( first 2 days ) were excluded for conducting evaluations of volunteers who did not use oral contraception and those who used it to break.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Ultrasound	Ultrasound associated with stretching	3 MHz (Mega Hertz) ultrasound in continuous mode with an intensity of 1.0 W / cm ² was applied for 3 minutes in the TMJ (Temporomandibular joint) and masseter muscles bilaterally
Ultrasound associated with stretchting	Ultrasound	3 MHz ultrasound in continuous mode with an intensity of 1.0 W / cm ² was applied for 3 minutes in the TMJ and masseter muscles bilaterally. Active stretching of the masseter muscles with mouth opening and closed lips
Ultrasound associated with stretchting	Placebo	3 MHz ultrasound in continuous mode with an intensity of 1.0 W / cm ² was applied for 3 minutes in the TMJ and masseter muscles bilaterally. Active stretching of the masseter muscles with mouth opening and closed lips
Placebo	Ultrasound	Turned off ultrasound application on area of TMJ and masseter muscle, bilaterally.
Placebo	Ultrasound associated with stretching	Turned off ultrasound application on area of TMJ and masseter muscle, bilaterally.
Ultrasound	Placebo	3 MHz (Mega Hertz) ultrasound in continuous mode with an intensity of 1.0 W / cm ² was applied for 3 minutes in the TMJ (Temporomandibular joint) and masseter muscles bilaterally

Primary Outcome Measures

Name	Time	Method
pressure pain threshold	10 minutes	algometry

Secondary Outcome Measures

Name	Time	Method
surface electromyography	10 minutes	electromyographic activity was measure at rest, in maximal intercuspal position and maximal voluntary clench

Trial Locations

Locations (1)

Universidade Federal de Santa Maria; 🇧🇷 Santa Maria, Rio Grande do Sul, Brazil