Therapeutic Response of Ultrasound and Muscular Stretching in Temporomandibular Disorder Patients

Therapeutic Response of Ultrasound and Muscular Stretching in Temporomandibular Disorder Patients: Clinical Trial

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

Study Overview

• Status: Completed
• Conditions: Temporomandibular Joint Disorders
• Intervention / Treatment: Other: Ultrasound associated with stretching; Other: Placebo; Other: Ultrasound

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 Type: Interventional
• Enrollment (Actual): 18
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Brazil
  • Rio Grande do Sul
    • Santa Maria, Rio Grande do Sul, Brazil, 97105-900
      • Universidade Federal de Santa Maria

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years to 31 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

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 Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Single

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Ultrasound; 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	Other: Ultrasound associated with stretching; 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; Other: Placebo; Turned off ultrasound application on area of TMJ and masseter muscle, bilaterally.
Experimental: Ultrasound associated with stretchting; 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	Other: Placebo; Turned off ultrasound application on area of TMJ and masseter muscle, bilaterally.; Other: 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
Experimental: Placebo; Turned off ultrasound application on area of TMJ and masseter muscle, bilaterally.	Other: Ultrasound associated with stretching; 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; Other: 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

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
pressure pain threshold	algometry	10 minutes

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
surface electromyography	electromyographic activity was measure at rest, in maximal intercuspal position and maximal voluntary clench	10 minutes

Collaborators and Investigators

• Sponsor: Universidade Federal de Santa Maria
• Investigators: Principal Investigator: Eliane C. Corrêa, Doctor, Universidade Federal de Santa Maria

Study record dates

Study Major Dates

• Study Start: March 1, 2012
• Primary Completion (Actual): June 1, 2013
• Study Completion (Actual): March 1, 2014

Study Registration Dates

• First Submitted: May 9, 2014
• First Submitted That Met QC Criteria: May 13, 2014
• First Posted (Estimate): May 15, 2014

Study Record Updates

• Last Update Posted (Estimate): May 15, 2014
• Last Update Submitted That Met QC Criteria: May 13, 2014
• Last Verified: May 1, 2014

More Information

Terms related to this study

• Keywords: Temporomandibular Joint Disorders,; Ultrasonics,; Electromyography,; Pain Measurement,; Muscle Stretching Exercise
• Additional Relevant MeSH Terms: Pathologic Processes; Musculoskeletal Diseases; Muscular Diseases; Stomatognathic Diseases; Jaw Diseases; Craniomandibular Disorders; Mandibular Diseases; Myofascial Pain Syndromes; Disease; Joint Diseases; Temporomandibular Joint Disorders; Temporomandibular Joint Dysfunction Syndrome
• Other Study ID Numbers: UFSM-MO-01