History and etiology of myofascial pain-dysfunction syndrome

Mikhail, Mongi G.; Rosen, Harry

doi:10.1016/0022-3913(80)90105-5

Cited by 25 publications

(16 citation statements)

References 29 publications

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“…According to dental literature, many cases of headache are caused by Temporo-mandibular Joint Dysfunction, also referred to as Myofascial Pain Dysfunction. [22][23][24][25][26][27][28] The symptoms described are pain in the head and neck muscles, limited jaw function and temporo-mandibular joint sounds and pain. 29,30 Mag-nusson and Carlsson 31,32 compared patients referred because of TMJ pain-dysfunction and patients seeking dental treatment for other reasons and found frequency and severity of headache to vary with the severity of mandibular dysfunction.…”

Section: Discussionmentioning

confidence: 99%

Clinical Characterization of Patients with Chronic Tension Headache

Langemark¹,

Olesen²,

Poulsen³

et al. 1988

Headache

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One hundred and forty-eight patients with tension headaches at least 10 days per month were studied prospectively with a standardized interview, neurological examination and evaluation of muscle tenderness and jaw movements. Patients with migraine attacks oftener than once per month were excluded. Ninety-three had daily headache. Median age at onset was 23 yrs. (quartiles 15-23 yrs.). Half of the patients had headache predominating in one part of the head. In the other half, headache was diffuse or with changing pattern. Fifty-eight reported migraine attacks 1-12 times per year; twenty-seven of these did not remember onset, 15 initially had migraine later developing into chronic headache, and 16 started with tension headache and developed migraine attacks later in life. Photophobia was reported as frequently associated with tension headache (migraine attacks not included) in 13 percent, infrequently in 38 percent and absent in 49 percent. Corresponding figures for phonophobia were 7, 35 and 57 percent. Characteristics of chronic tension headache were similar in patients with and without migraine attacks.The components included in the usual indices of temporo-mandibular joint dysfunction showed little mutual correlation. Pericranial tenderness scores were elevated compared to previously studied controls. Tenderness in paravertebral muscles was significantly correlated to pericranial tenderness, and patients indicating influence by environmental factors had the highest pericranial tenderness scores. The findings are suggestive of a generalized muscular reaction to environmental stress in the majority of patients. (Headache 28:590-596, 1988)

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Section: Discussionmentioning

confidence: 99%

Clinical Characterization of Patients with Chronic Tension Headache

Langemark¹,

Olesen²,

Poulsen³

et al. 1988

Headache

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“…Oro‐facial pain, spontaneous or provoked, for example by palpation or jaw movements, is a cardinal symptom of temporomandibular disorders (TMD) and is historically related to masticatory muscle function impairment . Since the early attempts to categorise TMD as a collection of clinical features, that is index‐based classifications, up to the more structured and widely accepted diagnostic criteria, the association between pain and jaw motor function remains under debate and different models have, indeed, been proposed to explain such interrelationships .…”

Section: Introductionmentioning

confidence: 99%

Muscle hardness and masticatory myofascial pain: Assessment and clinical relevance

Costa

Ariji

Ferreira

et al. 2018

J of Oral Rehabilitation

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The impression of increased muscle hardness in painful muscles is commonly reported in the clinical practice but may be difficult to assess. Therefore, the aim of this review was to present and discuss relevant aspects regarding the assessment of muscle hardness and its association with myofascial temporomandibular disorder (TMD) pain. A non-systematic search for studies of muscle hardness assessment in patients with pain-related TMDs was carried out in PubMed, Cochrane Library, Embase and Google Scholar. Mechanical devices and ultrasound imaging (strain and shear wave elastography) have been consistently used to measure masticatory muscle hardness, although an undisputable reference standard is yet to be determined. Strain elastography has identified greater masseter hardness of the symptomatic side in patients with unilateral myofascial TMD pain when compared to the contralateral side and healthy controls (HC). Likewise, shear wave elastography has shown greater masseter elasticity modulus in patients with myofascial TMD pain when compared to HC, which may be an indication of muscle hardness. Although assessment bias could partly explain these preliminary findings, future randomised controlled trials are encouraged to investigate this relationship. This qualitative review indicates that the muscle hardness of masticatory muscles is still a rather unexplored field of investigation with a good potential to improve the assessment and potentially also the management of myofascial TMD pain. Nonetheless, the current evidence in favour of increased hardness in masticatory muscles in patients with myofascial TMD pain is weak, and the pathophysiological importance and clinical usefulness of such information remain unclear.

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“…The leading aetiological factors believed to be responsible for the dysfunction of the masticatory muscles in patients with temporomandibular joint disturbance syndrome (TMJDS) are muscular hyperactivity, tension and spasm (Laskin, 1969;Mikhail & Rosen, 1980;Sheikholeslam, Holmgren & Riise, 1986). This has led to exploration of the possible use of some objective quantifiable electromyographic indices.…”

Section: Introductionmentioning

confidence: 99%

Value of EMG analysis of mandibular elevators in open‐close‐clench cycle to diagnosing TMJ disturbance syndrome

Chong-Shan

Wang

1989

J of Oral Rehabilitation

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The EMGs of the temporal and masseter muscle, in sixty patients with temporomandibular joint disturbance syndrome (TMJDS) and thirty normal controls, were recorded during rhythmical open-close-clench cycle movement and before and after occlusal splint therapy. The duration of the muscle contraction before initial tooth contact (DMC), the latent period (LP) and the silent period (SP) of the myoelectrical activity were used as indices for exploring their diagnostic value. In contrast with the controls, DMC, LP and SP lengthened in the patients. The DMC was prolonged in those patients where there were TMJ sounds, the inter-cuspated position did not coincide with the muscular contact position and there was deviated mandibular movement. An increase of the SP was related to tooth contact on the balancing side. After treatment, the DMC and SP in the patients returned to the level of the controls. It was found that the internal correction rate of Fisher's linear discriminate function established for the DMC and SP of the temporal and masseter muscles was 80.9% and 85.1% respectively. The results show that the DMC and SP of the temporal and masseter muscles have some value in diagnosing muscular dysfunction and discriminating therapeutic effectiveness.

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History and etiology of myofascial pain-dysfunction syndrome

Cited by 25 publications

References 29 publications

Clinical Characterization of Patients with Chronic Tension Headache

Clinical Characterization of Patients with Chronic Tension Headache

Muscle hardness and masticatory myofascial pain: Assessment and clinical relevance

Value of EMG analysis of mandibular elevators in open‐close‐clench cycle to diagnosing TMJ disturbance syndrome

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