Effect of High-intensity Laser Therapy on Patients With Myogenic Temporomandibular Joint Dysfunction

Cairo University (CU)

Status: Not yet enrolling

Conditions: Temporomandibular Joint Dysfunction Syndrome

Treatments: Device: High-intensity laser therapy (HILT); Device: placebo high-intensity laser therapy

Study type: Interventional

Funder types: Other

Identifiers

NCT06495788

P.T.REC/012/004882

Details and patient eligibility

About

This study will be conducted to investigate the effect of high-intensity laser therapy on the temporalis and masseter muscles activity in patients with myogenic temporomandibular joint dysfunction.

Full description

Temporomandibular joint dysfunction (TMD) is one of the problems that affect the quality of lifestyle through the presence of pain around the joint radiated in the face, neck, or shoulders muscles and a decrease in function of the temporomandibular joint that leads to difficulty in mastication, swallowing, earaches, dizziness, and hearing problems may sometimes be associated with TMD.

High-intensity laser therapy (HILT) is a laser with a wavelength of 1064 nm and has recently been used in the treatment of musculoskeletal diseases. Its primary effect is the analgesic effect and reactive vasodilation by affecting the cutaneous nerve endings. Another mechanism of action is based on tissue stimulation. This stimulation occurs at the level of cells, vascular tissue, interstitial tissue, and the immune system. It increases regeneration and beta-endorphin release by inducing protein synthesis in synovial fluid, thus exerting analgesic and anti-inflammatory effects.

Since there is a lack of literature studying the effect of HILT on masseter and temporalis muscles activity in patients with myogenic TMD so, this study may provide a baseline for a new technique in rehabilitation intervention in patients with myogenic TMD.

Enrollment: 40 estimated patients

Sex: All

Ages: 20 to 45 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Patients from both gender with unilateral myogenic temporomandibular dysfunction (TMD) with trismus diagnosed and referred from maxillofacial specialist.
• Aged between 20 to 45 years old .
• Visual analogue scale (VAS) score >3 for unilateral myogenic pain of the temporomandibular joint (TMJ).
• Pain lasting at least 3 months.
• Patients were diagnosed as unilateral myogenic pain.

Exclusion criteria

• Previous TMJ surgery.
• History of jaw dislocation.
• History of jaw fracture.
• Previous therapy with occlusal splint.
• Concomitant therapy of bruxism.
• Presence of removable oral prosthesis.
• Metal implants in the skull.
• Presence of hearing aids.
• Malignancy.
• Pregnancy.
• Diabetic patients.
• Hypertensive patients.
• Systemic rheumatologic disease
• Systemic infection.
• Inserted cardiac pacemaker.
• Presence of coagulation disorders.
• Trigeminal neuritis.
• Cognitive dysfunction.
• Bilateral TMD.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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40 participants in 2 patient groups, including a placebo group

High-intensity laser therapy group

Experimental group

Description:

Patients will receive pulsed high-intensity laser therapy in addition to conventional treatment

Treatment:

Device: High-intensity laser therapy (HILT)

placebo high-intensity laser therapy group

Placebo Comparator group

Description:

Patients will receive placebo high-intensity laser therapy in addition to conventional treatment

Treatment:

Device: placebo high-intensity laser therapy