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Temporomandibular joint disorder (TMJD, TMJ or TMD), or TMJ syndrome, is an umbrella term covering acute or chronic inflammation of the temporomandibular joint, which connects the lower jaw to the skull. The disorder and resultant dysfunction can result in significant pain and impairment. Because the disorder transcends the boundaries between several health-care disciplines—in particular, dentistry, neurology, physical therapy and psychology—there are a variety of quite different treatment approaches. Image File history File links Gray309. ...
The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or disease. ...
The International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10) is a coding of diseases and signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or diseases, as classified by the World Health Organization (WHO). ...
// K00-K93 - Diseases of the digestive system (K00-K14) Diseases of oral cavity, salivary glands and jaws (K00) Disorders of tooth development and eruption (K01) Embedded and impacted teeth (K02) Dental caries (K03) Other diseases of hard tissues of teeth (K04) Diseases of pulp and periapical tissues (K040) Pulpitis (K05...
The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or disease. ...
The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. ...
The Disease Bold textDatabase is a free website that provides information about the relationships between medical conditions, symptoms, and medications. ...
MedlinePlus (medlineplus. ...
eMedicine is an online clinical medical knowledge base that was founded in 1996. ...
Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ...
In medicine, an acute disease is a disease with either or both of: a rapid onset; a short course (as opposed to a chronic course). ...
In medicine, a chronic disease is a disease that is long-lasting or recurrent. ...
An abscess on the skin, showing the redness and swelling characteristic of inflammation. ...
The temporomandibular joint (From the Latin for too much jaw) is a diarthrodial joint that connects the condyle of the mandible (lower jaw) to the temporal bone at the side of a skull. ...
For other uses of Skull, see Skull (disambiguation). ...
Pain redirects here. ...
This article is about the dental profession. ...
Neurology is a branch of medicine dealing with disorders of the nervous system. ...
Physical therapy (or physiotherapy[1]) is the provision of services to people and populations to develop, maintain and restore maximum movement and functional ability throughout the lifespan. ...
Psychological science redirects here. ...
The temporomandibular joint is susceptible to all the conditions that affect other joints in the body, including ankylosis, arthritis, trauma, dislocations, developmental anomalies and neoplasia. Although treatment is often similar to other joints in the body, some variations exist. Ankylosis, or Anchylosis is a stiffness of a joint, the result of injury or disease. ...
Arthritis (from Greek arthro-, joint + -itis, inflammation; plural: arthritides) is a group of conditions where there is damage caused to the joints of the body. ...
Dislocation (joint dislocation) occurs when bones at a joint move from their normal position. ...
Neoplasia (new growth in Greek) is abnormal proliferation of cells in a tissue or organ. ...
Signs and symptoms
Signs and symptoms of temporomandibular joint disorder vary in their presentation and can be very complex. Often the symptoms will involve more than one of the numerous TMJ components: Muscles, Nerves, Tendons, Ligaments, Bones, Connective Tissue and the Teeth.[1] A top-down view of skeletal muscle Muscle (from Latin musculus little mouse [1]) is contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. ...
A nerve is an enclosed, cable-like bundle of nerve fibers or axons, which includes the glia that ensheath the axons in myelin. ...
A tendon or sinew is a tough band of fibrous connective tissue, attached on one end to a muscle and on the other to a bone. ...
A ligament is a short band of tough fibrous connective tissue composed mainly of long, stringy collagen molecules. ...
This article is about the skeletal organs. ...
Connective tissue is one of the four types of tissue in traditional classifications (the others being epithelial, muscle, and nervous tissue. ...
Types of teeth Molars are used for grinding up foods Carnassials are used for slicing food. ...
Muscles Disorders of the muscles of the temporomandibular joint are the most common complaints by TMD patients.[2] The two major observations concerning the muscles are pain and dysfunction. Simple cases of this type of TMD are caused by overusage of the muscles. Common causes include chewing gum continuously, eating large volumes of un-shelled sunflower seeds, biting habits (fingernails and pencils), grinding habits and clenching habits. Most cases of TMJ are, however, not so simple. Muscles can also be damaged more insidiously: infection, trauma (past or present), bruising and scarring to name just a few ways. In less common cases, muscle pain can sometimes be associated with trigger points in muscle tissue.[3] This is known as Myofascial pain syndrome. This article or section needs to be wikified. ...
CambridgeBayWeather 02:48, 23 September 2005 (UTC) Categories: Possible copyright violations ...
Any dysfunction of the muscles may cause the teeth to occlude (bite) with each other incorrectly,[4]if teeth are traumatized by this they may become sensitive demonstrating one of the many interplays between muscle, joint and tooth.
Temporomandibular joints This is arguably the most complex set of joints in the human body. Unlike typical finger or vertebral junctions, each TMJ actually has two joints which allow it to both rotate and to translate (slide). With use it is common to see wear of both the bone and cartilage components of it. Clicking is common as are popping motions and deviations in the movements of the joint. It is considered a TMJ disorder when pain is involved. In a healthy joint, the surfaces in contact with one another (bone and cartilage) do not have any receptors to transmit the feeling of pain. The pain therefore originates from one of the surrounding soft tissues. When receptors from one of these areas are triggered, the pain causes a reflex to limit the mandible's movement. Furthermore, inflammation of the joints can cause constant pain, even without movement of the jaw. Due to close proximity of the ear to the temporomandibular joint, TMJ pain can often be confused with ear pain.[5] The pain may be referred in around half of all patients and experienced as otalgia (earache).[6][7] Conversely, TMD is an important possible cause of secondary otalgia.[8] Treatment of TMD may then significantly reduce symptoms of otalgia and tinnitus,[9] as well as atypical facial pain.[10] Despite some of these findings, there are some researchers who question whether TMD therapy can reduce symptoms in the ear, and currently a debate is ongoing to settle the controversy.[11] This article does not cite any references or sources. ...
Otalgia is ear pain or an earache. ...
Otalgia is ear pain or an earache. ...
Tinnitus (IPA pronunciation: or ,[1] from the Latin word for ringing[2]) is the perception of sound in the human ear in the absence of corresponding external sound(s). ...
The dysfunction involved is most often in regards to the relationship between the condyle of the mandible and the disc.[12] The sounds produced by this dysfunction is usually described as a "click" or a "pop" when a single sound is heard. When there are multiple, rough sounds, it is described as "crepitation" or "crepitus".
Teeth Disorders of the teeth can also be present in TMD patients.[13] Tooth mobility can be caused by destruction of the supporting bone and by heavy forces being placed on teeth. Movement of the teeth affects how they contact one another when the mouth closes, and the overall relationship between the teeth, muscles, and joints can be altered. The heavy forces on the teeth have been associated with the presence of mandibular tori in TMD patients.[14] Pulpitis, inflammation of the dental pulp, is another symptom that may result. It is usually caused by heavy forces on the teeth and can cause pain. Lastly, tooth wear is the most common sign associated with a dysfunction of the teeth, but it is not strongly associated with TMD symptoms.[15] Tooth wear can be a result of bruxism or by interfering with the movement of the mandible during function, referred to as the "functional envelope of motion." Depending on the cause, the treatment for tooth wear differs. These are an example of large mandibular tori. ...
Bruxism (from the Greek βÏÏ
γμÏÏ (brugmós), gnashing of teeth) is the grinding of the teeth, typically accompanied by the clenching of the jaw. ...
Precipitating factors There are many external factors that place undue strain on the TMJ. These include but are not limited to the following: Over-opening the jaw beyond its range for the individual or unusually aggressive or repetitive sliding of the jaw sideways (laterally) or forward (protrusive). These movements may also be due to wayward habits or a malalignment of the jaw or dentition. This may be due to: In sciences dealing with the anatomy of animals, precise anatomical terms of location are necessary for a variety of reasons. ...
- Modification of the occlusal surfaces of the teeth through dentistry or accidental trauma.
- Sleeping on one's stomach causing strain on the face, neck and lower jaw.
- Speech habits resulting in jaw thrusting.
- Excessive gum chewing or nail biting.
- Excessive jaw movements associated with exercise.
- Repetitive unconscious jaw movements associated with bruxing.
- Size of foods eaten.
Bruxism (from the Greek βÏÏ
γμÏÏ (brugmós), gnashing of teeth) is the grinding of the teeth, typically accompanied by the clenching of the jaw. ...
Treatment Restoration of the occlusal surfaces of the teeth If the occlusal surfaces of the teeth have been damaged through dentistry or accidental trauma, the proper occlusion must be restored through modification of the occlusal surfaces of the teeth.
Pain relief While conventional analgesic pain killers such as paracetamol or NSAIDs provide initial relief for some sufferers, the pain is often more neuralgic in nature which often does not respond well to these drugs.[citation needed] An analgesic (colloquially known as a painkiller) is any member of the diverse group of drugs used to relieve pain (achieve analgesia). ...
Paracetamol (INN) (IPA: ) or acetaminophen (USAN), is the active metabolite of phenacetin, a so-called coal tar analgesic. ...
Wikipedia does not yet have an article with this exact name. ...
Neuralgia is a painful disorder of the nerves. ...
An alternative approach is for pain modification, for which off-label use of low-doses of Tricyclic antidepressant that have anti-muscarinic properties (e.g. Amitriptyline or the less sedative Nortriptyline) generally prove more effective.[citation needed] Off-label use is the practice of prescribing drugs for a purpose outside the scope of the drugs approved label, most often concerning the drugs indication. ...
Chemical structure of the tricyclic antidepressant amitriptyline. ...
An anticholinergic agent is a member of a class of pharmaceutical compounds which serve to reduce the effects mediated by acetylcholine in the central nervous system and peripheral nervous system. ...
Amitriptyline (or Amitryptyline) hydrochloride (sold as Elavil, Tryptanol, Endep, Elatrol, Tryptizol, Trepiline, Laroxyl) is a tricyclic antidepressant drug. ...
Nortriptyline is a tricyclic antidepressant marketed under the tradenames Aventyl® and Pamelor®. It is used to treat depression. ...
Long term approach It is suggested that before the attending doctor commences any plan or approach utilizing medications or surgery a thorough search for inciting para-functional jaw habits must be performed. Correction of any discrepancies from normal can then be the primary goal. An approach to eliminating para-functional habits involves the taking of a detailed history and careful physical examination. The medical history should be designed to reveal duration of illness and symptoms, previous treatment and effects, contributing medical findings, history of facial trauma and a search for habits that may have produced or enhanced symptoms. Particular attention should be directed in identifying perverse jaw habits such as clenching or teeth grinding, lip or cheek biting, or positioning of the lower jaw in an edge to edge bite. All of the above puts strain of the muscles of mastication (chewing) and resultant jaw pain. Palpation of these muscles will cause a painful response. A para-functional habit or parafunctional habit is the habitual exercise of a body part in a way that is other than the most common use of that body part. ...
Treatment is oriented to eliminating oral habits, physical therapy to the masticatory muscles and alleviating bad posture of the head and neck. A flat plane full coverage oral appliance, e.g. a non-repositioning stabilisation splint, often is helpful to control bruxism and take stress off the temporomandibular joint, albeit the fact that some individuals may bite harder on it resulting in a worsening of their conditions. The anterior splint with contact at the front teeth only may then prove helpful. Bruxism (from the Greek βÏÏ
γμÏÏ (brugmós), gnashing of teeth) is the grinding of the teeth, typically accompanied by the clenching of the jaw. ...
According to the National Institute of Dental and Craniofacial Research (NIDCR) of the National Institutes of Health (NIH), TMJ treatments should be reversible whenever possible. That means that the treatment should not cause permanent changes to the jaw or teeth.[16][17] Examples of reversible treatments are: - Over-the-counter pain medications, used according to manufacturers’ instructions.
- Prescription medications prescribed by a healthcare provider.
- Gentle jaw stretching and relaxation exercises you can do at home. Your healthcare provider can recommend exercises for your particular condition, if appropriate.
- Stabilization splint (biteplate, nightguard) is the most widely used treatment for TMJ and jaw muscle problems. However, the actual effectiveness of these splints is unclear. If an oral splint is recommended, it should be used only for a short time and should not cause permanent changes in the bite. If a splint causes or increases pain, stop using it and tell your healthcare provider. Avoid using over-the-counter mouthguards for TMJ treatment. If a splint is not properly fitted, the teeth may shift and worsen the condition.
- Mandibular Repositioning Devices can be worn for a short term to help alleviate symptoms related to painful clicking when opening the mouth wide but 24 hour wear for long term may lead to changes in the position of the teeth which can complicate treatment. A typical long term permanent treatment (if the device is proven to work especially well for the situation) would be to convert the device to a flat plane bite plate fully covering either the upper or lower teeth and to be used only at night. Full mouth reconstruction, or building up of teeth to achieve the proper bite relation is not supported by strong evidence based studies.
Surgical Irreversible Treatments According to the National Institute of Dental and Craniofacial Research, of the National Institutes of Health, irreversible treatments have not been proven to work and may make the problem worse.[16][17] Examples of irreversible treatments are: - Manual adjustment of the bite by grinding the teeth.
- Mandibular repositioning splints which move the jaw, ligaments and muscles into a new position.
- Extensive dental work such as crown and bridge work to balance the bite.
- Orthodontics
- Surgical procedures
- Replacement of the jaw joint(s) or disc(s) with TMJ implants should be considered only as a treatment of last resort. TMJ implants are intended to improve jaw function. Pain alone is not a reason to undergo a TMJ replacement procedure; often, after surgery, the pain level stays the same or even increases.[16][17] TMJ implants may also cause permanent damage.[16][17]
Further surgery following two previous procedures generally has a poor outlook for normal, pain-free joint function.[16][17] Attempts in the last decade to develop surgical treatments based on MRI and CAT scans now receive less attention. These techniques are reserved for the most recalcitrant cases where other therapeutic modalities have changed. Exercise protocols, habit control, splinting, or more recently neuromuscular dentistry should be the first line of approach, leaving oral surgery as a last resort. Certainly a focus on other possible causes of facial pain and jaw immobility and dysfunction should be the initial consideration of the examining oral-facial pain specialist, oral surgeon or health professional. One option for oral surgery, is to manipulate the jaw under general anaesthetic and wash out the joint with a saline and anti-inflammatory solution in a procedure known as arthrocentesis.[18] In some cases, this will reduce the swelling of the joint, and allow for fluid movement when the jaw opens and closes. âSurgeonâ redirects here. ...
The mri are a fictional alien species in the Faded Sun Trilogy of C.J. Cherryh. ...
CT apparatus in a hospital Computed axial tomography (CAT), computer-assisted tomography, computed tomography, CT, or body section roentgenography is the process of using digital processing to generate a three-dimensional image of the internals of an object from a large series of two-dimensional X-ray images taken around...
Physical therapy can help restore lost functionality in many people. ...
Neuromuscular dentistry is a form of dentistry that focuses on correcting misalignment of the jaw at the temporomandibular joint (TMJ). ...
Oral and Maxillofacial Surgery is a specialty of dentistry. ...
Arthrocentesis is the clinical procedure of using a syringe to collect synovial fluid from a joint capsule. ...
See also Bruxism (from the Greek βÏÏ
γμÏÏ (brugmós), gnashing of teeth) is the grinding of the teeth, typically accompanied by the clenching of the jaw. ...
Fibromyalgia (FM or FMS) is a chronic syndrome (constellation of signs and symptoms) characterized by diffuse or specific muscle, joint, or bone pain, fatigue, and a wide range of other symptoms. ...
External links GPnotebook is a British medical database for general practitioners (GPs. ...
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References - ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 191.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 192.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 198.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 193.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 233.
- ^ Tuz H, Onder E, Kisnisci R (2003). "Prevalence of otologic complaints in patients with temporomandibular disorder.". Am J Orthod Dentofacial Orthop 123 (6): 620-3. PMID 12806339.
- ^ Ramírez L, Sandoval G, Ballesteros L (2005). "Temporomandibular disorders: referred cranio-cervico-facial clinic." (PDF - English & Spanish). Med Oral Patol Oral Cir Bucal 10 Suppl 1: E18-26. PMID 15800464.
- ^ Peroz I (2001). "[Otalgia and tinnitus in patients with craniomandibular dysfunctions]". HNO 49 (9): 713-8. PMID 11593771.
- ^ Sobhy O, Koutb A, Abdel-Baki F, Ali T, El Raffa I, Khater A (2004). "Evaluation of aural manifestations in temporo-mandibular joint dysfunction.". Clin Otolaryngol Allied Sci 29 (4): 382-5. PMID 15270827.
- ^ Quail G (2005). "Atypical facial pain--a diagnostic challenge." (PDF). Aust Fam Physician 34 (8): 641-5. PMID 16113700.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 234.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 204.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 227.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 229.
- ^ Okeson, Jeffrey P. "Management of Temporomandibular Disorders and Occlusion". 5th edition. Mosby, Inc. 2003. ISBN 0-323-01477-1. Page 230.
- ^ a b c d e National Institutes of Health: National Institute of Dental and Craniofacial Research. (1993). Estimated prevalence and distribution of reported orofacial pain in the United States. Journal of the American Dental Association, 5 (10), 115-121.
- ^ a b c d e National Institutes of Health Technology Assessment Conference Statement. (1996). Management of temporomandibular disorders. Washington, D.C.: Government Printing Office.
- ^ "Temporomandibular Disorders", the Cleveland Clinic.
| Oral Pathology: Oral pathology (K00-K14, 520-529) | | Developmental Anomalies | Anodontia/Hypodontia - Hyperdontia - abnormalities of size and form of teeth (Concrescence, Fusion, Gemination, Dens evaginatus/Talon cusp, Dens invaginatus, Enamel pearl, Macrodontia, Microdontia, Taurodontism) - disturbances in tooth formation (Dilaceration, Regional odontodysplasia, Turner's hypoplasia) - other hereditary disturbances in tooth structure (Amelogenesis imperfecta, Dentinogenesis imperfecta, Dentin dysplasia) | | Hard, Soft and Periapical Tissues | Attrition - Abrasion - Ankylosis - Dental caries - Denticles - Erosion - External resorption - Fluorosis - Gingivitis - Impaction - Internal resorption - Periodontitis - Pulpitis - Ulcer | | Dentofacial Anomalies | Malocclusion - Micrognathism - Prognathism - Retrognathism - Temporomandibular joint disorder | | Maxillomandibular anomalies | Odontogenic keratocyst - Torus mandibularis - Torus palatinus - Cherubism - Ameloblastoma | | Salivary glands | Drooling - Benign lymphoepithelial lesion - Necrotizing sialometaplasia - Ranula - Sialadenitis - Sialolithiasis - Stomatitis - Xerostomia - Aphthous ulcer | | Lip and Oral mucosa | Angular cheilitis - Erythroplakia - Hairy leukoplakia - Leukoplakia | | Tongue | Geographic tongue - Fissured tongue - Glossitis - Glossodynia - Black hairy tongue | |