Effect of Osteopathic Technique on Maximum Mouth Opening Width, Masseter Muscle Tone and Stiffness

Официальное название

Effect of Temporomandibular Joint Compression and Decompression Technique on Maximum Mouth Opening Width, Masseter Muscle Tone and Stiffness: A Randomized Controlled Study

Обзор

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.

Подробное описание

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.

Вмешательства

• Другое 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
• Другое 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

Первичные конечные точки

• Maximum Mouth Opening Width [Срок оценки: Immediately after the intervention. Since the protocol has two interventions, the total time frame is one week.]
• Masseter Muscle Tone [Срок оценки: Immediately after the intervention. Since the protocol has two interventions, the total time frame is one week.]
• Masseter muscle stiffness [Срок оценки: Immediately after the intervention. Since the protocol has two interventions, the total time frame is one week.]

Критерии участия

Критерии включения

• Asymptomatic adults that signed the informed consent
• Functional dentition
• Preserved masticatory function

Критерии исключения

• 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

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Двойное слепое

Основная цель

Лечение

Центры проведения

Португалия · 1 центр

• Escola Superior de Saúde (E2S) — Porto

Публикации

• 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

Идентификаторы

NCT: NCT07670832 · OST1-021

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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