Additional Effects of Therapeutic Exercises Under a Behavioral Umbrella for Chronic Temporomandibular Disorders Treatment

NCT ID: NCT03596606

Last Updated: 2023-06-02

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

COMPLETED

Clinical Phase

NA

Total Enrollment

34 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-09-16

Study Completion Date

2023-01-28

Brief Summary

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Temporomandibular dysfunction (TMD) It's one of the main causes of oro-facial chronic pain. The psychological aspects of patients with TMD have a huge importance, affecting their ability to manage pain and interfering with the resolution of the picture.

Different studies analyse Manual therapy (MT) and motor control exercises (MC) as a whole or separately. In these cases, MT with MC shows promising results. Despite this, MC do not suggest adding significant improvement at least at short term. In the other side, according to a recent research line, MC with education is the clue for chronic pain management. This leads us to think that it should be studied more carefully if MC performed with a cognitive approach adds beneficial effect to MT not only in purely mechanical aspects but also in psycho-social aspects of the individual and at longer term.

HYPOTHESIS The combination of MT and MC is more effective than MT applied in a unique way for the treatment of pain, function and psycho-social symptoms associated with chronic TMD.

Detailed Description

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TMD is an alteration of the jaw function associated with disorders at the mastication muscles, mandibular joint and its associated tissues. It constitutes a major health problem since it's one of the main causes of oro-facial chronic pain and interferes with daily life. It is associated with headache, otological symptoms, cervical dysfunction and alterations in posture at the cervical level. The TMD involves genetic, anatomical, hormonal factors, traumatisms, motor behaviour, psycho-social aspects and occlusal problems.

The psychological aspects of patients with TMD have a huge importance, affecting their ability to manage pain and interfering with the resolution of the picture. It can even cause the pain to become chronic. The most prevalent symptoms in TMD are somatization and depression. Chronic pain can lead to plastic changes in the brain that lead to hyper-excitability of the central nervous system. Persistent pain produces protective memories that involve antalgic behaviour, avoidance and kinesiophobia. The literature shows that somatization, depression, fear of pain, fear of movement and catastrophism in conjunction with the amplification of pain are key factors in the chronification of TMD.

The TMD treatment must provide the ideal circumstances for the repair and adaptation. The TMD is usually a benign self-limiting process, so the guidelines always recommend non-invasive, reversible treatments in the first instance and within the bio-psycho-social approach.

For conservative management, the most evidence-based approach is manual therapy (MT). The one that has demonstrated more effectiveness is the mobilisation with impulse and / or mobilisation both at cervical and mandibular level. MT improves motor response, range of motion and modulates pain intensity via peripheral, medullary and supraspinal mechanisms. Theories suggest that hypoalgesia is caused by several mechanisms mediated by the periaqueductal gray substance.

Different studies analyse MT and motor control exercises (MC) as a whole or separately, comparing them with other therapies such as education, splints, medication, botulinum toxin, arthroplasty and arthroscopy. In these cases, MT with MC are superior to these therapies. Despite this, MC exercises do not suggest adding significant improvement in the treatment of TMD, at least in the short term. Shafer et al., In a recent systematic review, state that there is currently no evidence for the use of MC exercises of any kind for the management of TMD in general. However, according to a recent research line MC with education is the clue for the management of chronic pain. The objective of the exercises is to perform a cognitive approach to provide the desensitization of the central nervous system, generate new memories and eliminate the protective movement associated with chronic pain. It also promotes eliminating catastrophism, avoidance and fear of pain behaviour associated with chronification. This leads us to think that it should be studied more carefully if CM performed with a cognitive approach adds beneficial effect to MT in the treatment of chronic TMD not only in purely mechanical aspects but also in psycho social aspects of the individual and longer term.

The current studies are of low quality, have biases in the selection, randomisation and allocation concealment. Patient selection and diagnostic criteria are not standardised. There is a lack of blind of the evaluator and examiner. The therapy or exercise is not well described making them difficult to reproduce. The new lines of research require more detail about the type of exercise to be performed and the MT applied as recommended by the intervention report guides.

HYPOTHESIS The combination of MT and Myofunctional MC (MMC) is more effective than MT applied in a unique way for the treatment of pain, function and psycho social symptoms associated with chronic TMD.

Conditions

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Temporomandibular Joint Dysfunction Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Both groups will be treated with Osteopathic Treatment and in one of them it will be added the intervention with cognition targeted myofunctional motor control exercises.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators
The principal evaluator will be blinded in relation to the study groups. The person responsible for taking the variables (baseline data, reassessments and data analysis) will be a therapist and a medical doctor unrelated to the recruitment and treatment. Due to the nature of the interventions, it is not possible to mask the therapist responsible for the interventions.

Study Groups

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Myofunctional Motor Control Exercises

Both groups will be treated with Manual treatment and in one of them the myofunctional motor control treatment will be added as intervention. The experimental group will be the one that will receive the combined treatment.

The patient will receive five sessions, one session every week.

Group Type EXPERIMENTAL

Manual Treatment

Intervention Type PROCEDURE

The manual treatment will be adapted to each patient at the discretion of the therapist, being able to select all or part of the following osteopathic techniques in each session.

* Soft tissue techniques.
* Articulatory techniques applied at cervical level
* Osteopathic manipulation techniques applied at the affected jaw/s.
* Functional Indirect technique at the level of the affected jaw/s: For Type I or II diagnosis.

Myofunctional Motor control exercises

Intervention Type PROCEDURE

The protocol is a set of 8 exercises to improve the execution of the function in the stomatognathic and cervical area.

The therapist explains the objectives of the exercises and the patient performs it after each session and at home three times a day.

The first day before performing the myofunctional exercises, will be an explanatory talk prior to the exercises in order to educate the patient. The second day, before doing the exercises, will review the concept of memory of pain and the benefits of doing the exercises

Manual Treatment

The control group will receive only Manual treatment (TO). The patient will receive five sessions, one session every week.

Group Type ACTIVE_COMPARATOR

Manual Treatment

Intervention Type PROCEDURE

The manual treatment will be adapted to each patient at the discretion of the therapist, being able to select all or part of the following osteopathic techniques in each session.

* Soft tissue techniques.
* Articulatory techniques applied at cervical level
* Osteopathic manipulation techniques applied at the affected jaw/s.
* Functional Indirect technique at the level of the affected jaw/s: For Type I or II diagnosis.

Interventions

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Manual Treatment

The manual treatment will be adapted to each patient at the discretion of the therapist, being able to select all or part of the following osteopathic techniques in each session.

* Soft tissue techniques.
* Articulatory techniques applied at cervical level
* Osteopathic manipulation techniques applied at the affected jaw/s.
* Functional Indirect technique at the level of the affected jaw/s: For Type I or II diagnosis.

Intervention Type PROCEDURE

Myofunctional Motor control exercises

The protocol is a set of 8 exercises to improve the execution of the function in the stomatognathic and cervical area.

The therapist explains the objectives of the exercises and the patient performs it after each session and at home three times a day.

The first day before performing the myofunctional exercises, will be an explanatory talk prior to the exercises in order to educate the patient. The second day, before doing the exercises, will review the concept of memory of pain and the benefits of doing the exercises

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Primary diagnosis of TMD type: I myofascial and or II displacement of disc and or III other arthralgias. According to the diagnostic criteria of Dworkin S. Et al. The clinical examination and algorithms that will be carried are the ones included in the the axis I of the Diagnostic criteria for TMD (DC/TMD). We will use the Spanish version.
* 6 months of TMD evolution and pain in the last 30 days.
* Signs of pain and disability of at least 7 points on the CF-PDI.
* Normal neurological examination.
* Normal orthopantomography (without fracture or severe joint bone disease).
* To accept the participation and sign the informed consent.

Exclusion Criteria

* Severe dermatological or intrabuccal problems, head or neck injuries.
* Orthopantomography with recent fractures or severe articular bone pathology.
* Previous treatment (three months before) with manual therapy splints or acupuncture.
* Previous diagnosis of severe psychiatric disorder.
* Systemic, rheumatologic or neurodegenerative diseases.
* Previous diagnosis of primary headache or unilateral neck pain of recent appearance.
* Associated clinic of neurological pain, radiculopathy or myelopathy.
* Not understanding Castilian or Catalan.
Minimum Eligible Age

5 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Maxilofacial Institute Bara Gaseniï„…

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Cristian Justribo manion, MSc

Role: PRINCIPAL_INVESTIGATOR

Locations

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Calle Londres, 28, 4

Barcelona, , Spain

Site Status

Countries

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Spain

References

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Other Identifiers

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2018/33-CMF-HUSC

Identifier Type: -

Identifier Source: org_study_id

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