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Temporomandibular joint

S El-Habbash, P Padaki, S Bayoumi, P Ross
The trigeminocardiac reflex is a rare occurrence in patients undergoing maxillofacial surgery, with a reported incidence of 1-2%. Clinical signs and symptoms include bradycardia, nausea, with further stimulation potentially leading to cardiac dysrhythmias, ectopic beats, atrioventricular blocks and asystole. Most maxillofacial procedures, including temporomandibular joint procedures, are considered low risk. We report the first case of a tender temporomandibular joint synovial cyst whose management was complicated by severe trigeminocardiac reflex resulting in asystole...
June 18, 2018: Annals of the Royal College of Surgeons of England
Hua-Lun Wang, Pei-Pei Zhang, Li Meng, Su-Xia Liang, Hao Liu, Ying-Bin Yan
PURPOSE: The aim of this experimental study was to investigate the role of the fibrous layer of the condylar head in the formation of temporomandibular joint (TMJ) ankylosis in a sheep model of intracapsular condylar fracture. MATERIALS AND METHODS: Six growing Xiao-wei Han sheep were used in the study, and bilateral TMJ surgery was performed in each sheep. In the left TMJ, sagittal fracture of the condyle, removal of the fibrous layer of the condylar head, excision of two thirds of the disc, and removal of the fibrous zone of the glenoid fossa were performed...
May 24, 2018: Journal of Oral and Maxillofacial Surgery
Maria Carolina Ferreira, Isabela Porto de Toledo, Kamile Leonardi Dutra, Fabiane Miron Stefani, André Luís Porporatti, Carlos Flores-Mir, Graziela De Luca Canto
Temporomandibular disorder (TMD) is an umbrella condition presenting several signs and symptoms including pain in the temporomandibular joint (TMJ) and masticatory muscles, articular noises, earache, headache, irregular or restricted jaw function, chewing difficulty, and limited mouth opening. Such TMD impairment may cause disorders during the chewing process. Therefore, the purpose of this systematic review was to assess chewing dysfunctions measured by sEMG, and their association with TMD. A combination and variation of the descriptors "temporomandibular joint disorders", "masticatory dysfunctions", and electromyography were used to perform the searches across databases...
June 16, 2018: Journal of Oral Rehabilitation
Amanda Allen, Nitu Saran
Pigmented villonodular synovitis is a benign but locally aggressive extra-articular tumor arising from the synovial membrane of tendons and bursae occurring near a joint space. Rarely, pigmented villonodular synovitis can involve the temporomandibular joint, which is emphasized in this paper. Diffuse and localized types have been described in the literature. The diffuse type involves the entire synovial membrane and infiltrates adjacent structures, which tend to be more aggressive and associated with a higher rate of recurrence when compared with the localized type...
April 2018: Radiology Case Reports
Heidi R Wassef, Patrick M Colletti
Nuclear medicine studies evaluate physiology on a molecular level providing earlier detection of lesions before morphologic change is evident. 99m Tc-MDP and 18 F-fluoride bone scans detect osteomyelitis earlier than radiographs and computed tomography (CT); aid in diagnosis of temporomandibular joint disorder; and evaluate activity of condylar hyperplasia, extent of Paget disease, and viability of bone grafts. 18 F-FDG PET/CT distinguish between soft tissue and bone infections and diagnose osteomyelitis complicated by fracture or surgery...
July 2018: Dental Clinics of North America
Carlos G Landaeta-Quinones, Nicole Hernandez, Najy K Zarroug
Computer-assisted surgery (CAS) has evolved over time from its earliest introduction with utility in the Neurosurgical field. Within the past twenty years, optical navigation systems have emerged and developed into a great tool for the fields of dentistry and craniomaxillofacial surgery (CMF). Currently, CAS is useful for orthognathic and temporomandibular joint surgery, facial trauma, maxillomandibular reconstruction, implantology, and restorative dentistry. This article describes the indications of CAS in dentistry, with large emphasis on CMF...
July 2018: Dental Clinics of North America
Rodrigo Lorenzi Poluha, Eduardo Grossmann, Lilian Cristina Vessoni Iwaki, Taqueco Teruya Uchimura, Rosângela Getirana Santana, Liogi Iwaki Filho
OBJECTIVE: The objective of this retrospective study was to evaluate the impact of myofascial trigger points (MTrPs) in patients with articular disc displacement with reduction (DDWR) and to identify which clinical variables are associated with the concomitant presence of DDWR and MTrPs. MATERIAL AND METHODS: 130 patients were selected that sought treatment due to joint pain, with ages ≥18 years, of both genders, with DDWR confirmed by magnetic resonance imaging...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
Joern Wittig, Farzad Borumandi, Alexander Gaggl, Johannes Hachleitner
Septic arthritis of the temporomandibular joint (TMJ) is rare, but patients with this diagnosis are at high risk for significant morbidity. We present a case of a 15-year-old man who presented with increasing trismus for 3 days. He had only minimal discomfort and swelling of the right cheek and temporal region, and pericoronitis of an impacted wisdom tooth was suspected. Under intravenous antibiotics, pain subsided, but trismus and a slight swelling remained. CT scan showed septic arthritis of the TMJ with an abscess formation penetrating into the epidural space...
June 11, 2018: BMJ Case Reports
Paolo Cariati, Blas Garcia Medina, Pablo Galvez, Almudena Cabello Serrano, Miguel Garcia Martin, Guillermo Valencia Moya
Temporomandibular joint (TMJ) is one of the most used joint of the body. Moreover, it is common knowledge that TMJ may show degenerative changes 10 years earlier than other joints. Recently, the use of arthroscopic surgery is revolutionizing the classic management of TMJ pathologies. In fact, the minimal invasiveness of this procedure allows faster results and fewer complications than other procedures. In this article, we present our arthroscopic technique. In this line, we would like to emphasize that we used this approach in different temporomandibular disorders such as anchored disk syndrome, habitual dislocation of TMJ, and internal derangement...
June 2018: Craniomaxillofacial Trauma & Reconstruction
Siok Yoong Chin, Nazer Bin Berahim, Khairulzaman Bin Adnan, Sundrarajan Naidu Ramasamy
Temporomandibular joint (TMJ) dislocation is a common occurrence, but diagnosis can be missed if patients do not complain. Delayed presentation complicates the management of a straightforward reduction. We present a case of a 24-year-old man who had bilateral TMJ dislocation of unknown duration after motor vehicle accident. The accident left him bedridden with speech difficulty. He was totally dependent on Ryles' and percutaneous endoscopic gastrotomy tubes for feeding. Computed tomography revealed dislocation of condyles anterior to articular eminences...
June 2018: Craniomaxillofacial Trauma & Reconstruction
Payam Farzad
The use of virtual surgical planning and computer-aided design/computer-aided manufacturing has previously been reported to enhance the planning for the reconstruction of mandibular continuity defects and to reduce surgical time. Reported is a case of a large keratocystic odontogenic tumor (KOT) affecting right hemimandible including the condylar neck. This case was initially reconstructed with a condyle-bearing reconstruction plate, but because of fatigue fracture 15 years later, a new reconstruction with a custom-made total joint temporomandibular prosthesis was performed...
June 2018: Craniomaxillofacial Trauma & Reconstruction
Sheera F Lerman, Claudia M Campbell, Luis F Buenaver, Mary Medak, Jane Phillips, Michelle Polley, Michael T Smith, Jennifer A Haythornthwaite
Negative cognitions are central to the perpetuation of chronic pain and sleep disturbances. Patients with temporomandibular joint disorder (TMJD), a chronic pain condition characterized by pain and limitation in the jaw area, have a high comorbidity of sleep disturbances that possibly exacerbate their condition. Ethnic group differences are documented in pain, sleep and coping, yet the mechanisms driving these differences are still unclear, especially in clinical pain populations. 156 women (79% white, 21% African American (AA)) diagnosed with TMJD were recruited as part of a randomized controlled trial evaluating the effectiveness of interventions targeting sleep and pain catastrophizing on pain in TMJD...
June 8, 2018: Journal of Pain: Official Journal of the American Pain Society
Shakil Ahmed Nagori, Sanjay Kumar Roy Chowdhury, Himanshu Thukral, Anson Jose, Ajoy Roychoudhury
OBJECTIVE: The aim of this systematic review was to investigate the current evidence in order to assess the efficacy of single puncture arthrocentesis versus standard double needle arthrocentesis in the management of temporomandibular joint(TMJ) disorders. METHODS: An electronic search of the PubMed, Scopus, Cochrane CENTRAL and Google scholar databases was performed to identify English studies published up until October 2017. Eligible studies were selected based on inclusion criteria and included randomized controlled trials(RCTs) comparing single puncture arthrocentesis and standard double needle arthrocentesis for the management TMJ disorders...
June 11, 2018: Journal of Oral Rehabilitation
Devon M Livingstone, Beth Lange
Rhinologic and oral maxillofacial complications from scuba diving are common, representing approximately 35% of head and neck pathology related to diving. We performed a systematic and comprehensive literature review on the pathophysiology, diagnosis, and treatment of rhinologic and oral maxillofacial pathology related to diving. This included complications due to sinus barotrauma, barodontalgia, odontocrexis, temporomandibular joint dysfunction, partially dentulous patients, and considerations for patients following major head and neck surgery...
June 30, 2018: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
R Y Bi, X T Luo, N Jiang, S S Zhu, Y F Li
Mandibular distraction osteogenesis (DO) has been shown to lead to considerable improvement in obstruction of the posterior airway space in patients with ankylosis of the temporomandibular joint (TMJ), and our objective was to find out if we could confirm these findings. Seventeen patients had spiral computed tomographic (CT) scans before and after DO. After treatment, the overall posterior airway space was enlarged in all three sections of the airway (oropharyngeal, glossopharyngeal, and laryngeal). We then compared rates of change in the airway among the sections using 2-dimensional and 3-dimensional assessments, and found that the rate of change in 3-dimensional assessment of volume was significantly higher than that in the 2-dimensional (62% compared with 34%)...
June 7, 2018: British Journal of Oral & Maxillofacial Surgery
Shravan Kumar Renapurkar
Anterior disc displacement with or without reduction is a common finding in symptomatic and asymptomatic individuals. When symptomatic and associated with dysfunction it requires an intervention. Once nonsurgical management fails and the patient does not respond to minimally invasive procedures, open surgical treatment is indicated. However, controversy exists about whether disc-preservation procedures, such as repositioning/repairing or disc removal, is the preferred treatment. This article evaluates the current evidence supporting both treatment options and highlights the indications, contraindications, and consequences of each...
June 6, 2018: Oral and Maxillofacial Surgery Clinics of North America
Dong He, Yanxin An, Yanhua Li, Jing Wang, Gaoyi Wu, Lei Chen, Guoxiong Zhu
PURPOSE: To explore the potential molecular mechanism of low-intensity pulsed ultrasound (LIPUS) in the treatment of temporomandibular joint osteoarthritis (TMJ-OA), and identify the target genes for therapy of TMJ-OA. METHODS: Rat TMJ-OA was induced by unilateral occlusal trauma (UOT). At 8 weeks, the experimental group rats were treated by LIPUS for 4 weeks (5 days every week). The cartilage was examined by histological techniques. Gene expression profile in control, placebo and LIPUS-treated group were measured by RNA sequencing (RNA-Seq)...
June 6, 2018: Gene
Leila Galiay, François Simon, Raphaël Lévy, Vincent Couloigner, Jean Donadieu, Julie Toubiana, Thomas Blauwblomme, Roman Hossein Khonsari
PURPOSE: Gorham-Stout disease (GS) is a rare and little understood bone disease that leads to the progressive replacement of the affected bone by fibrous tissues. The mandible is the most commonly affected craniofacial bone, but there is no report to date of temporomandibular joint (TMJ) lesions in this condition. We aimed to characterize the involvement of the TMJ in this uncommon bone disorder. MATERIAL AND METHODS: We retrospectively included all patients managed for craniofacial forms of GS in our pediatric institution over a period of 12 years...
May 9, 2018: Journal of Cranio-maxillo-facial Surgery
Matthias C Wurm, Tessa K Behrends, Wolfgang Wüst, Marco Wiesmüller, Andre Wilkerling, Friedrich W Neukam, Tilo Schlittenbauer
INTRODUCTION: Magnetic resonance imaging has been established as the gold standard for assessment of the temporomandibular joint. Apart from an excellent assessment of the soft tissues it has the advantage not to expose the patient to ionizing radiation. There is a lack of literature concerning the correlation between pain intensity and radiological findings of the temporomandibular joint. Moreover there is the question of whether a progressive degeneration of the cartilaginous components is accompanied by an increasing degeneration of the osseous parts of the mandibular joint and vice versa...
January 4, 2018: Journal of Cranio-maxillo-facial Surgery
Resi Pucci, Valentino Vellone, Valerio Ramieri, Piero Cascone, Carlo Della Rocca
Intra-Articular Temporo-Mandibular Disorders (TMD) are characterized by displacement of the disc that causes the condyles to slip back over the disc thus resulting in TMJ discal damage and erosion of the condyle's bone. The etiology of temporomandibular disorder (TMD) is multidimensional: biomechanical, neuromuscular, bio-psychosocial and biological factors may contribute to the disorder. The study involved 46 joints in 27 patients with a diagnosis of Intra-Articular Temporo-Mandibular Disorders (TMD) according to Axis I of Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) for Clinical and Research Applications and underwent surgery between 2011 and 2014...
June 5, 2018: Journal of Cranio-maxillo-facial Surgery
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