{"id":22289,"date":"2016-03-08T00:00:00","date_gmt":"2016-03-08T00:00:00","guid":{"rendered":"https:\/\/sylvainchamberland.com\/temporomandibular-joint-disorder\/"},"modified":"2023-08-21T13:28:02","modified_gmt":"2023-08-21T13:28:02","slug":"temporomandibular-joint-disorder","status":"publish","type":"post","link":"https:\/\/www.sylvainchamberland.com\/en\/temporomandibular-joint-disorder\/","title":{"rendered":"Temporomandibular joint disorder"},"content":{"rendered":"

<\/a><\/h3>\n

<\/a>Case study<\/h2>\n

A woman having undergone a major surgery under general anesthesia in October 2008 (general anesthesia also means intubation) developed constant pain in the left temple<\/strong> in the month following the surgery that may correspond to a temporomandular joint disorder. She consulted her family physician<\/strong> and her optometrist<\/strong> and they found nothing abnormal<\/strong>.<\/p>\n

In September 2009, the pain was so intense that she lost consciousness at work. She is a receptionist.<\/p>\n

At the emergency room, trigeminal neuralgia<\/strong> is suspected and a consultation to the Montreal Migraine Clinic is recommended.<\/p>\n

<\/a>Trigeminal neuralgia:<\/strong><\/h2>\n

\u2022 Pain in the head and face striking acutely (paroxysmal) and briefly along the area of innervation of the trigeminal nerve.<\/p>\n

\u2022 Would be triggered by the compression of the nervous branches by adjacent blood vessels (arteries), but decompression does not relieve the pain in all patients.<\/p>\n

\u2022 Carbamazepine is a pain killer and anticonvulsant used in the treatment of trigeminal neuralgia. Side effects of this medication include drowsiness, ataxia, nausea and anemia. A complete blood formula must be obtained before, during and after therapy.<\/p>\n

However, the Migraine Clinic diagnoses a Horton cephalalgia<\/strong> (<\/a>vascular facial algia<\/strong> or cluster headache<\/strong>). This diagnosis ended up being false afterwards as the hemicrania continued (paroxysmal hemicrania).<\/p>\n

Cluster headache (vascular facial algia):<\/strong><\/h2>\n

\u2022 Unilateral (appearing on one side only), acute and intense pain located in the orbital, supraorbital and\/or temporal areas lasting 15 to 180 minutes and occurring once every 2 days or up to 8 times per day.<\/p>\n

\u2022 The attacks occur in series during weeks or months separated by remission periods.<\/p>\n

\u2022 To confirm such diagnosis, at least 5 attacks must have occurred.<\/p>\n

\u2022 100% of individuals having this type of migraine either have tooth pain (53%) or jaw pain (47%).<\/p>\n

\u2022 This disorder mainly occurs in men in a M:F ratio of 6:1. The prevalence within the population is estimated to 0.005% to 0.24% and occurs during the third decade of age (the thirties).<\/p>\n

\u2022 Home oxygen therapy would be efficient in the treatment of this type of headache. Consult the document of the Agence d\u2019\u00e9valuation des technologies et des modes d\u2019intervention en sant\u00e9 (AETMIS): Horton cephalalgia<\/a> (in French).<\/p>\n

<\/a>Paroxysmal hemicrania:<\/strong><\/h2>\n

\u2022 Similar signs and symptoms of the vascular facial algia, but lasting a shorter period of time.<\/p>\n

\u2022 70% of affected individuals are women in their thirties.<\/p>\n

\u2022 We can observe up to 15 attacks in a 24-hour period of a duration of 5 to 20 minutes.<\/p>\n

\u2022 Indomethacin is extremely efficient (12.5 to 250 mg\/day).<\/p>\n

Back to top<\/a><\/p>\n

<\/a>A consultation in neurology at the Notre-Dame Hospital in December 2009 brings more precision. Cervicogenic headaches<\/strong> following bad intubation (or laborious intubation) are mentioned.<\/p>\n

Taking Lyrica, efficient in neuropathies associated with post-zoster neuralgia (ref: herpes zoster virus causing shingles) was not efficient. Topamax, indicated in migraine prophylaxis in adults, ended up being as inefficient with this patient.<\/p>\n

A scan and X-ray showed the presence of 3 cervical hernias<\/strong>. An orthopaedic surgeon performed a facet block that removed the formication in the arms during 2 months, but not the pain in the left temple. In September 2010, the orthopaedist prescribed a cervical epidural injection and the patient took carbamazepine for 6 months. The pain was reduced, but it was always present.<\/p>\n

Cervicogenic headache:<\/strong><\/h2>\n

\u2022 Pain referred<\/strong> to any part of the head where the nociceptive (pain) origin<\/strong> comes from musculoskeletal tissues innervated by cervical nerves going through cervical vertebrae.<\/p>\n

\u2022 These headaches are moderately severe, diffuse, unilateral (left or right), but do not change sides; in other words, they do not start on the left to end up on the right.<\/p>\n

\u2022 These headaches can last for 1 to 3 days and come with multiple symptoms including watering of the eye<\/strong>, conjunctival hyperemia, dizziness<\/strong>, nausea, vomiting, hypersensitivity to light or sound.<\/p>\n

\u2022 The three first cervical nerves are most often involved and interact with V (trigeminal), VII (facial), IX (glossopharyngeal), X (vagus), XI (accessory or spinal-accessory) cranial nerves. See this document: C\u00e9phal\u00e9es, vertiges et rachis cervical<\/a> (in French).<\/p>\n

So in the fall of 2010, the pain was reduced, but present. In May 2011, Marie\u2019s dentist detected cracked teeth and recommended an occlusal splint. She was referred to another dentist who recommended an MRI which put in evidence that the left articular disc was perforated. An occlusal splint was made, muscle relaxants and anti-inflammatory drugs were prescribed.<\/p>\n

Wearing the splint caused pain in the side of the face and in the temple on the first night.<\/p>\n

Here is thus the summary of Marie\u2019s story that we find on Dr Jules Lemay\u2019s site by following this link<\/a> (in French).<\/strong><\/p>\n

Since Dr Jules Lemay<\/strong> asked me what I thought about this case, I thus provided a first response<\/a> (in French) where I try to reason the clues that Marie gives us.<\/p>\n

<\/a>What can we understand and conclude?<\/h2>\n

First, the clues:<\/p>\n

A major surgery under general anesthesia.<\/p>\n

Working as a receptionist<\/strong> that leads to holding a telephone receiver between the shoulder and the head or using a headset which can apply pressure on the temples (depending on the headset model).<\/p>\n

Three (3) cervical hernias<\/strong>.<\/p>\n

Formication in the arms<\/strong> disappeared after a facet block.<\/p>\n

Modifications to teeth: cracked enamel. This could be a probable consequence of bruxism<\/strong> (teeth grinding) or clenching.<\/p>\n

A perforated articular disc (or it is the retrodiscal ligament band and the disc is anteriorly compressed).<\/p>\n

<\/a>Impression and conduct<\/h2>\n

I recognize that wearing an occlusal splint is efficient in decreasing the number of episodes of jaw clenching and relieving muscular pain triggered by these episodes. It is also indicated in cases of disc dislocation with or without reduction.<\/p>\n

\"Luxation-discale-non-reductible-chamberland-orthodontiste-Quebec\"

Internal derangement of the TMJ. The articular disc is blocked anteriorly from the condyle. The retrodiscal ligament band acts as a disc, but it is not designed for this function. Source: TMDs. An evidence-based approach to diagnosis and treatment, Laskin et al, Qb 2006.<\/p><\/div>\n

<\/a><\/p>\n

In Marie\u2019s case, a disc dislocation without reduction probably occurred and could be linked to intubation during the general anesthesia, but several people suffer from disc dislocations without having undergone general anesthesia like several people who undergo general anesthesia do not suffer from disc dislocation afterwards.<\/p>\n

Regardless, Marie recuperated from this dislocation and was able to open her mouth about as wide as 40 mm. Let\u2019s note that the pain increases between 20 and 40 mm of opening, which indicates that the disc probably stayed blocked<\/strong> and that the joint works on the retrodiscal band<\/strong> that stabilizes<\/strong> the disc on the head of the condyle<\/strong> if it is not dislocated, but that was stretched following dislocation<\/strong>. Episodes of clenching or bruxism could have contributed to the perforation of the retrodiscal band.<\/p>\n

Is it a temporomandibular disorder?<\/h2>\n

I invited Marie not to have a reductive vision of her state and pretend that her problems were coming uniquely from her occlusion or from her TMJ<\/strong>.<\/p>\n

It would be the same as pretending that the Earth is at the centre of the universe.<\/strong><\/p>\n

I believe that the cervical hernias<\/strong> were underestimated in Marie\u2019s problems in the way that a consultation or physiotherapy treatments could have or should have been prescribed. Moreover, a consultation in ergotherapy to evaluate the working posture would not be unnecessary.<\/p>\n

\"\"

Nociceptive innervation from the neck to the face<\/p><\/div>\n

On the right image, it is described that a painful stimulation coming from C3<\/strong> converges on the trigeminal neuron<\/strong> creating a nociceptive (pain) input ascending onto (toward) the cerebral cortex<\/strong>. This input is perceived<\/strong> in the cortex as being pain in the cervical regions and TMJ<\/strong> even if this input<\/strong> originates uniquely from the cervical region<\/strong>.<\/p>\n

In simple terms, injury to the C2-C3 region (intervertebral nerve) triggers pain referred to the angle of the lower jaw (mandibular angle), to the temporomandibular joint and to the temple (region of the temporal muscle).<\/p>\n

Injury to the C2 region triggers diffuse pain in the suboccipital, occipital and frontal regions.<\/p>\n

Injury to the C4 region can cause losses in sensitivity, numbness in the arms and hands.<\/p>\n

\"\"

Dermatomes of the head and neck<\/p><\/div>\n

Dermatomes (area of skin innervated by a nerve coming from the spinal cord) show that cervical nerves from C2 to C7 innervate the head and the upper limbs (arms). Marie\u2019s cervical hernias<\/strong> (there are 3 of them) probably affect vertebrae below C3<\/strong>, because a facet block decreased formication in the arms<\/strong>. This means that nerves C4, C5 or C6 are affected.<\/p>\n

<\/h4>\n

<\/a>Recommendations<\/strong><\/h2>\n

I recommend that Marie consults a certified physiotherapist<\/strong>. The evaluation of cervicothoracic junction injuries is necessary. Specific exercises<\/strong> guided by a kynesiologist<\/strong> to strengthen the cervical and back muscle structure<\/strong> can only be beneficial.<\/p>\n

\"\"

Bad working posture of a medical technologist. The posture can be similar to the one of a receptionist seated at a front desk. The arrows represent the zones of constraining postures on the arms, shoulders and neck.<\/p><\/div>\n

Consult an ergotherapist<\/strong> to evaluate the working posture<\/strong>. As an example, the Association paritaire pour la sant\u00e9 et la s\u00e9curit\u00e9 du travail du secteur des affaires sociales published a prevention guide on musculoskeletal disorders in dental clinic (www.asstsas.qc.ca<\/a>). Reference: Prevention action leaflet: Pipetter en s\u00e9curit\u00e9 pour pr\u00e9venir les TMS chez les technologues<\/a> (in French)<\/p>\n

Continue the use of the occlusal splint, but do not believe that this will resolve your headache problems totally, because the cause is very likely elsewhere (cervical spine)<\/strong>.<\/p>\n

If no convincing results<\/strong> occur within the following 3 months<\/strong>, ask yourself some questions<\/strong>. It is a little like medication that you have taken which has not cured anything.<\/p>\n

If it doesn\u2019t work, it means it is not the right treatment.<\/p>\n

Worse, if it works, it does not even mean that your disc and your TMJ were causing your headache problems. They were maybe only the effect of another problem<\/strong>.<\/p>\n

I do not recommend any irreversible TMJ surgical procedure at this point.<\/p>\n

I recommend an evaluation by an oral surgeon<\/strong> (Dr Dany Morais or Dr Carl Bouchard) for the joint condition<\/strong> and an orthodontist for the occlusal condition<\/strong> (the dentition).<\/p>\n

Back to top<\/a><\/p>\n

<\/a>References:<\/h3>\n

TMDs: an evidence-based approach to diagnosis and treatment, Laskin D. M., Green C. S., Hylander W. L., Qintessence book, 2006<\/p>\n

Orofacial Pain, from basic science to clinical management, Lund J.P., Lavigne G.J., Bubner R., Sessle B.J. Quintescence book, 2001<\/p>\n

Orofacial Pain, from basic science to clinical management 2nd<\/sup> edition, Lund J.P., Lavigne G.J., Bubner R., Sessle B.J. Quintescence book, 2008<\/p>\n

Orofacial Pain, guidelines for assessment, diagnosis and Management, edited by Jeffrey P. Okeson et coll, Quintescence book, 1996<\/p>\n

Orofacial Pain, guidelines for assessment, diagnosis and Management, 4th<\/sup> edition, edited by Reny de Leeuw et coll, Quintescence book, 2008<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Case study A woman having undergone a major surgery under general anesthesia in October 2008 (general anesthesia also means intubation) developed constant pain in the left temple in the month following the surgery that may correspond to a temporomandular joint disorder. She consulted her family physician and her optometrist and they found nothing abnormal. In […]<\/p>\n","protected":false},"author":2,"featured_media":14977,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[412,1],"tags":[],"class_list":["post-22289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-non-classifiee"],"acf":[],"yoast_head":"\nTemporomandibular joint disorder - Dr. Sylvain Chamberland, Orthodontist<\/title>\n<meta name=\"description\" content=\"Temporomandibular Joint Disorder: Find relief and solutions for TMJ issues. 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