Effect of Osteopathic Technique on Maximum Mouth Opening Width, Masseter Muscle Tone and Stiffness
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In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Osteopathic Intervention Techniques, Placebo Technique.
- Who it may be relevant to
- Registry conditions: Asymptomatic Condition. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Portugal
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Effect of Temporomandibular Joint Compression and Decompression Technique on Maximum Mouth Opening Width, Masseter Muscle Tone and Stiffness: A Randomized Controlled Study
Overview
The purpose of this study is to assess the effect of compression and decompression thecnique on the temporomandibular joint on maximum mouth opening width, masseter muscle tone and stiffness in asymptomatic adults, compared with a control condition consisting of cranial listening touch without therapeutic intent. Evaluations will be conducted immediately after the intervention and one week later.
Detailed description
The purpose of this study is to assess the Effect of Compression and Decompression Technique on the Temporomandibular Joint on masseter muscle tone and stiffness (always assessed on the right side). Muscle properties will be evaluated using the Myoton device (Myoton AS, Tallinn, Estonia), a non-invasive instrument that measures biomechanical and viscoelastic properties of muscles, such as stiffness and tone (the parameters used in the results).
In addition, maximum mouth-opening width will be assessed by measuring the distance between the upper and lower central incisors using a universal caliper, recorded in millimeters.
These outcomes will be compared with a control condition consisting of cranial listening touch without therapeutic intent .
The study will include asymptomatic adults without diagnoses of systemic inflammatory diseases, cardiovascular diseases, respiratory diseases , central nervous system disorders, or rheumatic pathologies. Additional exclusion criteria include: use of fixed orthodontic appliances within the past 3 months; visual impairment affecting balance or proprioception; history of maxillofacial surgery; trauma to the cranial or cervical region within the last 6 months ; ongoing pharmacological treatments that may interfere with muscle tone or pain perception (e.g., muscle relaxants, tricyclic antidepressants, benzodiazepines) and third/fourth year osteopathy students.
Measurements of the tone/stiffness of the masseter muscle and maximum mouth opening width will conducted before, immediately after the intervention and one week later the study will be repeated in each participant.
Interventions
- Other Osteopathic Intervention Techniques
The temporomandibular joint compression and decompression technique consists of, with the patient in the supine position and the investigator at the head, hooking the middle fingers beneath the angles of the mandible while the basal joints cover the joints and the palms cover the ears and temporal regions. First, a light cranially-directed pressure is applied to the mandible for 30 seconds to release restrictions and stretch the intracranial membrane. Subsequently, the vector is reversed, and a - Other Placebo Technique
Cranial listening touch without therapeutic intent consists of, with the patient in the supine position and the investigator at the head of the bed, the investigator placing bilateral contacts on the patient's skull with the first fingers in contact with each other, without contacting the skull, the second fingers on the greater wing of the sphenoid, the third fingers anterior to the ear, the fourth fingers posterior to the ear, and the fifth fingers in contact with the squamous part of the occi
Primary outcome measures
- Maximum Mouth Opening Width [Time frame: Immediately after the intervention. Since the protocol has two interventions, the total time frame is one week.]
- Masseter Muscle Tone [Time frame: Immediately after the intervention. Since the protocol has two interventions, the total time frame is one week.]
- Masseter muscle stiffness [Time frame: Immediately after the intervention. Since the protocol has two interventions, the total time frame is one week.]
Eligibility criteria
Inclusion criteria
- Asymptomatic adults that signed the informed consent
- Functional dentition
- Preserved masticatory function
Exclusion criteria
- Diagnosis of inflammatory systemic disorders
- Diagnosis of cardiovascular disorders
- Diagnosis of respiratory disorders
- Diagnosis of central nervous system disorders
- Diagnosis of rheumatic disorders
- Visual disturbance affecting balance or proprioception
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Double blind
- Primary purpose
- Treatment
Study locations
Portugal · 1 center
- Escola Superior de Saúde (E2S) — Porto
Publications
- Oliveira-Campelo NM, Rubens-Rebelatto J, Marti N-Vallejo FJ, Alburquerque-Sendi N F, Fernandez-de-Las-Penas C. The immediate effects of atlanto-occipital joint manipulation and suboccipital muscle inhibition technique on active mouth opening and pressure pain sensitivity over latent myofascial trigger points in the masticatory muscles. J Orthop Sports Phys Ther. 2010 May;40(5):310-7. doi: 10.2519/ PMID 20436241
- Murphy MK, MacBarb RF, Wong ME, Athanasiou KA. Temporomandibular disorders: a review of etiology, clinical management, and tissue engineering strategies. Int J Oral Maxillofac Implants. 2013 Nov-Dec;28(6):e393-414. doi: 10.11607/jomi.te20. PMID 24278954
- Goulet JP, Clark GT, Flack VF, Liu C. The reproducibility of muscle and joint tenderness detection methods and maximum mandibular movement measurement for the temporomandibular system. J Orofac Pain. 1998 Winter;12(1):17-26. PMID 9656895
- Dimitroulis G. Temporomandibular disorders: a clinical update. BMJ. 1998 Jul 18;317(7152):190-4. doi: 10.1136/bmj.317.7152.190. No abstract available. PMID 9665905
- Cuccia A, Caradonna C. The relationship between the stomatognathic system and body posture. Clinics (Sao Paulo). 2009;64(1):61-6. doi: 10.1590/s1807-59322009000100011. PMID 19142553
- Aird L, Samuel D, Stokes M. Quadriceps muscle tone, elasticity and stiffness in older males: reliability and symmetry using the MyotonPRO. Arch Gerontol Geriatr. 2012 Sep-Oct;55(2):e31-9. doi: 10.1016/j.archger.2012.03.005. Epub 2012 Apr 13. PMID 22503549
Identifiers
NCT: NCT07670832 · OST1-021