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New Report on Temporomandibular Disorders: Priorities for Research and Care

Over a year and half ago, the National Academy of Medicine (NAM) began the most comprehensive study ever undertaken on Temporomandibular Disorders (TMD). The study assessed the current state of TMD research, education and training, the safety and efficacy of clinical treatments, and associated burden and costs.

Statement by NIDCR Acting Director on the National Academies of Sciences, Engineering, and Medicine Report on Temporomandibular Joint Disorders

I am pleased to announce the release of the National Academies of Sciences, Engineering, and Medicine (NASEM) report, Temporomandibular Disorders: Priorities for Research and Care. As underscored by the comprehensive report, temporomandibular joint disorders (TMJDs) are a diverse and still poorly understood set of complex, painful conditions affecting the jaw muscles and tissues, temporomandibular joints, and associated nerves. Clearly, there is much more to be understood, and these conditions continue to confound medical and dental health care providers and researchers.

Have you seen the film Dark Waters?

The Film. Dark Waters is about attorney Robert Billott's real-life 20 year legal battle against DuPont chemical for releasing toxic waste - perfluorooctanoic acid, or PFOA - into Parkersburg, West Virginia's water supply, with devastating health effects on the townspeople and livestock. PFOA, also known as C8, is a man-made chemical. It is used in the process of making Teflon and similar chemicals known as fluorotelomers.

Online TMD Diet Diary Research Project

Online TMD Diet Diary Research Project The TMJ Association received the following request from Professor Justin Durham and his research team at Newcastle University. We encourage TMJ patients to participate in this project as it is an under researched

Drug Induced Bruxism

The authors of this article state that orofacial movement disorders (bruxism) are treated typically by dental professionals and not by those specialists (neurologists) researching and treating the other movement disorders (Parkinson's disease, Huntington's disease, tremors, etc.). Again, this is more evidence of the complexity of TMD and the need for multidisciplinary research and treatment in TMD.

Chronic Pain and Complementary and Alternative Medicine: What the Science Says

  • Oct 26, 2016

What the latest research indicates about the relationship between non-traditional approaches to chronic pain.

Low-Back Pain

  • Reviews of research on acupuncture, massage, and spinal manipulation for chronic low-back pain have found evidence that these therapies may be beneficial. Clinical practice guidelines issued by the American College of Physicians/American Pain Society in 2007 recommend these therapies and five other nonpharmacologic (nondrug) approaches for patients with back pain who do not improve with medication, education, and self-care (other recommended approaches are cognitive-behavioral therapy, exercise therapy, progressive relaxation, intensive interdisciplinary rehabilitation, and yoga).
  • Reviews of research on other Complementary and Alternative Medicine (CAM) therapies that people sometimes use for chronic low-back pain, such as various herbal remedies and prolotherapy injections, generally have found limited or no evidence to support their use for this purpose, or the evidence is mixed.


  • Among CAM approaches that have been studied for pain relief in osteoarthritis are acupuncture, glucosamine/chondroitin, herbal remedies, mineral baths (balneotherapy), and tai chi. Many of these approaches have also been studied for rheumatoid arthritis.
  • Overall, although some studies of CAM practices have had promising results, the evidence generally is limited or mixed. A systematic review article on acupuncture for osteoarthritis concluded that acupuncture may lead to small improvements in pain and function.
  • However, in a large clinical study, known as GAIT (Glucosamine/chondroitin Arthritis Intervention Trial), the popular dietary supplements glucosamine and chondroitin sulfate alone or in combination did not significantly relieve knee osteoarthritis pain among all participants, although the combination did help a subgroup who had moderate-to-severe pain.
  • Reviews have found evidence that gamma linolenic acid (GLA, from evening primrose and certain other plant oils) may relieve rheumatoid arthritis pain, although further research is needed.
  • Reviews have also noted evidence that dietary supplements known as ASUs (avocado-soybean unsaponifiables) and devil's claw may provide relief from osteoarthritis pain.


  • Reviews of research on acupuncture for reducing the frequency and intensity of migraine and tension-type headaches conclude that patients may benefit from acupuncture therapy.
  • One review found evidence that spinal manipulation may help patients suffering from chronic tension-type or cervicogenic (neck-related) headaches.
  • Some research suggests that the herb feverfew may prevent migraine attacks, but results from clinical trials are mixed, and additional research is needed.

Neck Pain

  • Reviews of research on manual therapies (primarily manipulation or mobilization) and acupuncture for chronic neck pain have found mixed evidence regarding potential benefits and have emphasized the need for additional research.
  • One review noted that clinical guidelines often endorse the use of manual therapies for neck pain, although there is no overall consensus on the status of these therapies.

Other Types of Pain

  • Various CAM approaches have also been studied for other types of chronic pain, such as facial pain, including from temporomandibular joint (jaw) disorder; nerve pain associated with diabetes and other conditions; cancer pain; and pain experienced by people with fibromyalgia.
  • Research reviews generally have found some promising evidence of effectiveness for some CAM therapies but often emphasize that additional research is needed before treatment recommendations can be made.

Other CAM Approaches

  • People suffering from various types of chronic pain sometimes turn to other CAM practices, such as hypnotherapy, meditation, or qi gong. Again, reviews of the research on these therapies have found some evidence of effectiveness but note the need for further studies.
  • Although static magnets are widely marketed for pain control, a review of the related research concludes that the evidence does not support this practice.
  • In addition, a review of research on eight mind-body interventions for older adults with chronic pain concluded that although evidence of efficacy is limited, the therapies appear to be feasible and safe for this population. The reviewers offer suggestions for future research.

Source: National Center for Complementary and Alternative Medicine,

TMJ Disorders


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