A Comparative Study of EMG Biofeedback and Pharmacotherapy for the Treatment of Masticatory Muscle Hyperactivity in Bruxism Patients

NCT ID: NCT06894472

Last Updated: 2025-03-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-26

Study Completion Date

2025-05-01

Brief Summary

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This study examines the effect of electromyography biofeedback on masticatory muscles hyperactivity on patients with bruxism.

Detailed Description

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Bruxism is a movement disorder characterized by excessive activity of the masticatory muscles, resulting in teeth clenching and grinding. It affects 50% to 95% of the adult population. Unlike normal, voluntary chewing movements associated with eating, bruxism involves involuntary jaw muscle contractions that cause tension, leading to muscle soreness and pain. Common symptoms include localized muscle tenderness, orofacial pain, anxiety, stress, fatigue, headaches (especially in the temporal region), restricted mouth opening, and temporomandibular joint stiffness. These symptoms can disrupt sleep, causing transitions from deep to light sleep, increased micro-arousals, and sleep fragmentation, leading to daytime fatigue that impacts social life and work performance.

Bruxism can also lead to masticatory muscle hypertrophy (especially the masseter), tongue burning, linea alba on the cheeks, excessive tooth wear, damage to dental prosthetics, changes in saliva secretion, severe craniofacial pain, and TMJ stiffness. Common treatments for bruxism-related pain often involve medications like Botox, clonazepam, or diazepam, but these are typically temporary and do not address the underlying causes. Moreover, long-term use of these medications may cause complications, and their high cost can limit accessibility.

Non-pharmacological treatments for bruxism include biofeedback, muscle relaxation exercises, occlusal splint therapy, and psychotherapy. Biofeedback, which provides real-time information on bodily functions, helps individuals recognize and modify harmful behaviors. Electromyography (EMG) biofeedback, recognized as effective for temporomandibular disorders (including bruxism), is endorsed by the American Association of Psychophysiology and Biofeedback (AAPB) as an evidence-based intervention.

This study aims to compare the effects of EMG biofeedback training versus oral medications in reducing masticatory muscle hyperactivity in bruxism patients, focusing on addressing the underlying pathophysiology, a topic that, to the authors' knowledge, has not been explored in previous research.

Conditions

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Bruxism

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Electromyography biofeedback + Pharmacotherapy

This group will be treated with electromyography biofeedback for one month with a frequency of 3 sessions/week in addition to the pharmacotherapy which prescribed by the dentist.

Group Type EXPERIMENTAL

Electromyography biofeedback

Intervention Type OTHER

Participants in the experimental group will receive surface electromyography (SEMG) feedback training, targeting the Masseter muscle, for 40 minutes per session according to the Evidence-Based practice since longer practice may become counterproductive due to fatigue and loss of focus. The frequency of the sessions will be 3 sessions/week for 4 weeks.

Pharmacotherapy

Intervention Type DRUG

Pharmacotherapy will be received by all participants in the two groups in the form of multi relaxant (cyclobenzaprine) 10 MG twice daily for 4 weeks \& anti inflammatory (non steroidal anti-inflammatory drugs).

Pharmacotherapy

This group will be treated only with the pharmacotherapy which prescribed by the dentist.

Group Type OTHER

Pharmacotherapy

Intervention Type DRUG

Pharmacotherapy will be received by all participants in the two groups in the form of multi relaxant (cyclobenzaprine) 10 MG twice daily for 4 weeks \& anti inflammatory (non steroidal anti-inflammatory drugs).

Interventions

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Electromyography biofeedback

Participants in the experimental group will receive surface electromyography (SEMG) feedback training, targeting the Masseter muscle, for 40 minutes per session according to the Evidence-Based practice since longer practice may become counterproductive due to fatigue and loss of focus. The frequency of the sessions will be 3 sessions/week for 4 weeks.

Intervention Type OTHER

Pharmacotherapy

Pharmacotherapy will be received by all participants in the two groups in the form of multi relaxant (cyclobenzaprine) 10 MG twice daily for 4 weeks \& anti inflammatory (non steroidal anti-inflammatory drugs).

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Twenty adult subjects with definite mild to moderate bruxism examined by a dentist prior to the study.
* Tenderness of masticatory muscles on palpation grade one and two according to the digital palpating scale
* Mild to moderate myofascial pain around the temporomandibular joint causing discomfort in the morning.

Exclusion Criteria

* Took any Botox or PRP injection treatment for this condition for the last six months
* Had any advanced periodontal disease.
* Any intraoral fixed splints.
* Pregnancy.
* Under psychiatric care.
* Parkinson
* Have any visual or auditory impairment.
* Any cervical posture abnormalities.
Minimum Eligible Age

20 Years

Maximum Eligible Age

25 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beni-Suef University

OTHER

Sponsor Role lead

Responsible Party

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Sara Abdullah mohamed elsamahy

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Sara Abdullah mohamed elsamahy, PhD

Role: PRINCIPAL_INVESTIGATOR

Lecturer

Mohamed Farouk Abdel-Latif, PhD

Role: PRINCIPAL_INVESTIGATOR

Lecturer

Amal Ahmed Mohamed Morsi, PhD

Role: PRINCIPAL_INVESTIGATOR

Lecturer

Wafaa Atef Abd Allah, PhD

Role: PRINCIPAL_INVESTIGATOR

Lecturer

Myassar Ayman Amine, M.Sc

Role: PRINCIPAL_INVESTIGATOR

Ass. Lecturer

Locations

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Misr University for Science and Technology

Giza, , Egypt

Site Status

Countries

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Egypt

Central Contacts

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Sara Abdullah mohamed elsamahy, PhD

Role: CONTACT

+20 11 51401438

Facility Contacts

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Sara Abdullah mohamed elsamahy, PhD

Role: primary

+20 11 51401438

Other Identifiers

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FPTBSUREC/0805/2325

Identifier Type: -

Identifier Source: org_study_id

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