Featured Research

from universities, journals, and other organizations

Study Suggests Tension Headache May Actually Be TMJD

Date:
May 14, 2006
Source:
University at Buffalo
Summary:
People whose recurrent headaches have been diagnosed as tension-related actually may be suffering from temporomandibular muscle and joint disorder, or TMJD, a study headed by a researcher from the University at Buffalo's School of Dental Medicine has shown.

People whose recurrent headaches have been diagnosed as tension-related actually may be suffering from temporomandibular muscle and joint disorder, or TMJD, a study headed by a researcher from the University at Buffalo's School of Dental Medicine has shown.

Related Articles


Results showed that examiners could replicate tension-headache symptoms in 82 percent of subjects by performing the clinical examination of the temporalis muscle, which is involved in TMJD.

Richard Ohrbach, D.D.S., Ph.D., UB associate professor in the Department of Oral Diagnostic Sciences, presented the study results at the American Association of Dental Research meeting held recently in Orlando, Fla.

The temporalis muscle is responsible for closing the jaw and is involved in chewing, but these core functions of that pair of muscles often are ignored when the presenting complaint is "headache," as opposed to jaw pain, Ohrbach said.

"Because headache is so incredibly common, it often is regarded as inevitable, and if sufferers label the pain as 'headache,' they may not seek help," he said. "Or if they do seek help, the label of 'headache' typically will propel the individual to a physician or neurologist for consultation.

"Knowledge about the intersection between jaw pain and headache is not well established, and consequently, jaw pain may be ignored in the differential diagnosis," Ohrbach added. "This can be most unfortunate for the individual, because TMJD can be very treatable, but if a jaw disorder is ignored, then treatment for the headache may not address all of the factors contributing to the headache."

The current study is part of an $8 million project to establish valid and reliable TMJD diagnostic criteria. Results will advance the field of TMJD research and aid clinicians in their practices.

Researchers at the University of Minnesota and the University of Washington, in addition to UB, are involved in the project.

An estimated 5-10 percent of the U.S. population suffer from TMJD severe enough to warrant treatment. These patients experience debilitating pain that can destroy quality of life. Diagnosing the disorder is problematic, however, due to overlap with other conditions, Ohrbach said.

TMJD usually involves more than a single symptom, rarely has a single cause and frequently involves multiple factors, including behavioral and emotional responses. Lacking a firm set of diagnostic tools, physicians and dentists often depend on their individual judgment to decide if a patient does or does not have the disorder, he noted.

The diagnostic criteria for TMJD being tested in this project are part of the established Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). Headache diagnosis is based on the International Headache Society (IHS) guidelines. All examiners were been trained to use the "gold-standard" criteria for tension-type headache established by the IHS.

The study compared the diagnostic procedures for pain and the reproduction of "pain" vs. "headache" during the clinical examination. Procedures included a range of functional and orthopedic tests and standard pain sensitivity to pressure applied to the muscles associated with headache. The types of headaches considered included sub-clinical headaches, tension-type headaches and headaches exhibiting more symptoms than are accepted for tension-type headaches, such as the "mixed headache," migraine or "migraine-type" headaches

The study involved 583 participants -- 82.3 percent female and 17.7 percent male -- who were recruited as cases from the community based on the presence of symptoms clearly associated with TMJD. Based on IHS criteria, 31.5 percent, or 152 participants, were diagnosed with tension-type headache by the examiners.

Additional researchers on the study were Yoly Gondalez, D.D.S., from UB; John O. Look, D.D.S., Ph.D., Eric L. Schiffman, D.D.S., and Wei Pan, Ph.D., from the University of Minnesota, and Edmond L. Truelove, D.D.S., from the University of Washington.

The study was funded by the National Institute of Dental and Craniofacial Research.


Story Source:

The above story is based on materials provided by University at Buffalo. Note: Materials may be edited for content and length.


Cite This Page:

University at Buffalo. "Study Suggests Tension Headache May Actually Be TMJD." ScienceDaily. ScienceDaily, 14 May 2006. <www.sciencedaily.com/releases/2006/05/060514082537.htm>.
University at Buffalo. (2006, May 14). Study Suggests Tension Headache May Actually Be TMJD. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2006/05/060514082537.htm
University at Buffalo. "Study Suggests Tension Headache May Actually Be TMJD." ScienceDaily. www.sciencedaily.com/releases/2006/05/060514082537.htm (accessed December 19, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, December 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Kids Die While Under Protective Services

Kids Die While Under Protective Services

AP (Dec. 18, 2014) As part of a six-month investigation of child maltreatment deaths, the AP found that hundreds of deaths from horrific abuse and neglect could have been prevented. AP's Haven Daley reports. (Dec. 18) Video provided by AP
Powered by NewsLook.com
Dads-To-Be Also Experience Hormone Changes During Pregnancy

Dads-To-Be Also Experience Hormone Changes During Pregnancy

Newsy (Dec. 18, 2014) A study from University of Michigan researchers found that expectant fathers see a decrease in testosterone as the baby's birth draws near. Video provided by Newsy
Powered by NewsLook.com
Prenatal Exposure To Pollution Might Increase Autism Risk

Prenatal Exposure To Pollution Might Increase Autism Risk

Newsy (Dec. 18, 2014) Harvard researchers found children whose mothers were exposed to high pollution levels in the third trimester were twice as likely to develop autism. Video provided by Newsy
Powered by NewsLook.com
UN: Up to One Million Facing Hunger in Ebola-Hit Countries

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

AFP (Dec. 17, 2014) Border closures, quarantines and crop losses in West African nations battling the Ebola virus could lead to as many as one million people going hungry, UN food agencies said on Wednesday. Duration: 00:52 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins