Occlusal Splint and Exercise Therapy for Temporomandibular Disorders

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorAcibadem University

About this trial

The goal of this clinical trial is to learn if an exercise protocol can improve temporomandibular pain, jaw function and muscle mechanical properties in individuals with Temporomandibular Disorders (TMD). This study focuses on patients who are already receiving occlusal splint therapy.

The main question it aims to answer is:

How does the addition of an exercise protocol to occlusal splint therapy affect temporomandibular pain, jaw function and muscle mechanical properties of the masticatory and neck muscles? Researchers will compare the group receiving both occlusal splint therapy and the exercise protocol to a group only occlusal splint therapy to see if the combined approach is more effective.

Participants will:

* Undergo an initial assessment of the Jaw Functional Limitation Scale-20 (JLFS-20), Craniofacial Pain and Disability Inventory (CF-PDI), Graded Chronic Pain Scale Version 2.0 (GCPS-2.0), jaw range of motion, pain pressure threshold and muscle mechanical properties. * Receive occlusal splint therapy as a part of their treatment. * Perform a structured exercise protocol (only 1 group) * Attend follow up sessions at the 4th week to monitor changes in all initial assessment parameters.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Clinical and radiological diagnosis of TMD

Being between 18-65 years of age

Presence of Temporomandibular Joint (TMJ) pain for the last 3 months.

Disqualifiers

Intra-articular or degenerative joint disorders and subluxation requiring immediate treatment,

A history of TMJ or cervical region surgery in the last 3 months,

A history of treatment from related regions,

The presence of rheumatic diseases, including TMJ diseases,

Trial design

Design model

Parallel

Treatments tested in this trial

  • Occlusal Splint

    Device

    Participants will be provided with custom-made hard acrylic occlusal splints. They will be instructed to wear the appliance every night during sleep for a period of four consecutive weeks. A licensed dentist will manage the delivery and occlusal adjustment of the splints to ensure they were correctly seated and well-tolerated by the subjects. Both groups will receive a occlusal splint to be worn every night.

  • Exercise

    Behavioral

    Participants will perform the Rocabado 6x6 exercise protocol, which consists of six specific movements designed to restore proper tongue position, improve jaw mobility, and stabilize the craniomandibular relationship. Each exercise will be performed 6 times per session, 6 times a day. The protocol includes: Rest position of the tongue, shoulder posture, stabilized head flexion, axial extension of the neck, control of TMJ rotation and rhythmic stabilization technique. The program consists of performing 6 specific exercises, 6 times per day with 6 repetitions each, for 4 weeks.

Treatment groups

38 Participants
are divided into 2 treatment groups
Group A: Splint Group (S Group)Active comparator 1 intervention
Group B: Exercise and Splint Group (ES Group)Experimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

Jaw Range of Motion

Pain-free opening, maximum unassisted opening, maximum assisted opening, lateral and protrusive movements will be mesured by a ruler. All measurements will be noted in milimeters between the incisal edges of upper and lower central incisors. The average of the 3 repetitions will be taken.

Time frame
Baseline and 4 weeks after start of treatment
2

Pain Pressure Threshold

PPT will be evaluated using a digital algometer. After positioning the algometer's rubbet tip pressure will be applied gradually. Measurements will be taken from the belly of the muscles (bilaterally for the masseter, temporalis, sternocleidomastoid and trapezius). The measurements will be made in three repetitions and the average will be noted in kg/cm2.

Time frame
Baseline and 4 weeks after start of treatment
3

Muscle Mechanical Properties

Muscle mechanical properties will be evaluated by the MyotonPRO (Myoton AS, Tallinn, Estonia) device. Device will perform 5 measurements by 15-seconds intervals and the mean values will be recorded. Measurements will be taken from the belly of the muscles (bilaterally masseter, temporalis, sternocleidomastoid and trapezius).

Time frame
Baseline and 4 weeks after start of treatment

Secondary outcomes

1

Jaw functional limitation scale - 20

JLFS-20 will be used to evaluate functional limitations of the jaw. It consists of 20-items and each item scored between 0 (no limitation) to 10 (severe limitaiton) score.

Time frame
Baseline and 4 weeks after start of treatment
2

Craniofacial Pain and Disability Inventory

Craniofacial pain and disability inventory will be used to evaluate TMD-related pain, neck pain, headache and ear pain. It consist of 21 items and each scored on a 4-point Likert-scale ranging from 0 ('no problem') to 3 ('maximum problem') score.

Time frame
Baseline and 4 weeks after start of treatment
3

Graded chronic pain scale version 2.0

Graded chronic pain scale version 2.0 will be used to evaluate pain intensity and pain-related disability over the last 30 days. Chronic pain is graded from grade 1 (indicating low intensity pain-low disability) to grade 4 (indicating high disability-severly limiting).

Time frame
Baseline and 4 weeks after start of treatment

Other outcomes

Sponsors and contacts

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Acibadem University

Lead sponsor

Okan University Hospital

Collaborator