Manual Therapy, Jaw Exercises Reduce Tinnitus Severity 2024

ByTinnitus Tips Editorial
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Peer-Reviewed Research


Manual Therapy and Jaw Exercises Reduced Tinnitus Severity in a 2024 Systematic Review

A specific combination of physical treatments led to meaningful improvements for some people with tinnitus linked to jaw problems. A 2024 systematic review published in Disability and Rehabilitation analyzed six studies and found that manual therapy combined with neck and jaw exercises reduced tinnitus severity and improved tinnitus-related quality of life. These benefits persisted at three- and six-month follow-up assessments. The research, led by Luana Ferreira Tavares at the University of Applied Sciences Osnabrück and the Federal University of São Carlos, provides a structured look at a potential non-invasive pathway for relief. However, the authors rated the overall certainty of this evidence as very low, indicating a clear need for more robust studies.

The Intimate Link Between Jaw, Neck, and Ear Symptoms

The temporomandibular joint (TMJ) is a complex hinge connecting your jawbone to your skull. Disorders of this joint and its associated muscles (TMD) are notorious for causing pain beyond the jaw. Symptoms frequently include earache, a sensation of ear fullness, and tinnitus—a phantom perception of sound. This connection is anatomical. The TMJ sits just in front of the ear canal, and muscles involved in chewing and neck stability share nerve pathways and fascial connections with structures of the middle ear and the auditory system. When these muscles are tense, imbalanced, or when the joint is misaligned, the disturbance can manifest as ear symptoms.

An international web-based survey by Sarah Michiels and colleagues in 2019 highlighted how common this is. They reported that in a large sample of individuals with tinnitus, physical symptoms like jaw pain, neck pain, and headache were highly prevalent. This suggests that for a substantial subgroup, tinnitus is not an isolated auditory phenomenon but part of a broader musculoskeletal issue.

What the Evidence Shows: A Closer Look at the 2024 Review

The systematic review by Tavares et al. offers the most current synthesis of clinical trial data on this topic. The team screened 4,356 articles to identify studies where exercise or manual therapy was compared to standard care or a control for individuals with TMD, specifically measuring otological (ear-related) symptoms.

Combined Therapy Outperformed Exercise Alone

The key finding was that a protocol integrating manual therapy with targeted exercises yielded better outcomes than exercises by themselves. Manual therapy involves hands-on techniques performed by a clinician, such as soft tissue massage, joint mobilizations, or manipulations aimed at the jaw and cervical spine. When these techniques were applied alongside prescribed exercises for neck and jaw mobility and coordination, patients reported greater reductions in tinnitus severity. Their quality of life, as measured by tinnitus-specific questionnaires, also improved more significantly. These effects were not just immediate; they were maintained for at least half a year.

Improvements in Ear Fullness and Earache

The review also found evidence supporting other interventions. Orofacial myofunctional therapy and oral motor exercises—which focus on retraining the muscles of the mouth, face, and throat for proper rest posture, swallowing, and chewing—showed benefit for the symptoms of earache and ear fullness when compared to no treatment. This points to the role of muscular function in regulating pressure and sensation in the ear region.

A Very Low Certainty of Evidence

It is vital to interpret these promising findings with appropriate scientific caution. Using the GRADE framework, the authors judged the certainty of the evidence for these conclusions to be “very low.” This rating stems from limitations in the original studies, including small sample sizes, potential biases in how the studies were conducted, and inconsistencies in how outcomes were measured. Therefore, while the results are encouraging and biologically plausible, they cannot yet be considered definitive proof. They represent a strong signal that justifies further, more rigorous investigation.

Practical Applications: What These Findings Mean for Management

For clinicians and individuals seeking relief, this research shifts the frame. It argues that assessment of tinnitus, particularly when accompanied by jaw or neck discomfort, should include an evaluation of the temporomandibular system. Conversely, treatment for TMD should actively screen for and address otological symptoms like tinnitus and ear fullness.

Potential Components of an Effective Protocol

Based on the review, an effective intervention may involve several components working together:

  • Manual Therapy: Performed by a physical therapist, dentist, or osteopath trained in TMD. This may involve intra-oral massage of jaw muscles, gentle mobilization of the TMJ, or techniques to release tension in the neck and shoulder muscles.
  • Jaw Exercises: These are often prescribed to improve coordination, increase range of motion, and strengthen weak muscles. Examples include controlled opening and closing movements, lateral jaw glides, and resisted opening exercises.
  • Neck Exercises: Given the anatomical and functional link, exercises to improve cervical spine posture, flexibility, and stability are frequently included. This might involve chin tucks, neck stretches, and strengthening of the deep neck flexors.
  • Orofacial Myofunctional Therapy: This behavioral approach, often guided by a speech-language pathologist or myofunctional therapist, retrains patterns of breathing, chewing, swallowing, and tongue rest posture to reduce abnormal strain on the system.

It is the combination of these approaches, particularly manual therapy with exercise, that the review suggests may be most potent. Self-management alone may not access the same benefits as a guided, combined program.

Actionable Takeaways and Seeking Professional Guidance

If you experience tinnitus alongside jaw clicking, pain, or limited opening, or with chronic neck tension, a connection to TMD is worth exploring. The first and most critical step is obtaining a professional diagnosis. Schedule an evaluation with a dentist specializing in TMD or an orofacial pain clinic. A physical therapist with expertise in the cervical spine and TMJ is another excellent resource. They can conduct a thorough physical examination to assess joint function, muscle tenderness, and posture.

Do not begin aggressive jaw exercises without assessment, as they could worsen an underlying condition if performed incorrectly. A professional can diagnose the specific type of TMD (muscle-related vs. joint-related) and tailor a safe, appropriate exercise regimen. They can also perform manual therapy techniques that are not possible to self-administer effectively.

Manage expectations. This approach is most relevant for tinnitus that is somatic in nature—meaning its perception can be modulated by physical maneuvers like clenching the jaw or pressing on certain neck muscles. Not all tinnitus has this characteristic. For other forms of tinnitus, different evidence-based management strategies, such as cognitive behavioral therapy or sound therapy, may be more appropriate. Our guide on integrated auditory health explores this broader context.

Future Research and Clinical Directions

The field requires studies with stronger methodologies to move from a “very low” to a higher level of evidence certainty. Future trials need larger participant groups, standardized control groups, and blinding of outcome assessors where possible. Crucially, as Tavares’s team noted, there must be a standardization of the tools used to measure otological symptoms. Using consistent, validated questionnaires for tinnitus severity, ear fullness, and hyperacusis will make it easier to compare results across studies and draw firmer conclusions.

Furthermore, research should aim to identify which patients are most likely to respond. Is it those with specific subtypes of TMD? Those with a shorter duration of symptoms? Answering these questions will allow for more personalized and effective treatment plans. The principle of targeting physical symptoms alongside auditory perception is also being explored in conditions like misophonia management, where stress and physiological arousal are key targets.

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Sources:
https://pubmed.ncbi.nlm.nih.gov/39655394/
https://pubmed.ncbi.nlm.nih.gov/31364603/
https://pubmed.ncbi.nlm.nih.gov/27965530/

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