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https://www.readbyqxmd.com/read/28721990/neocondyle-distraction-osteogenesis-in-the-management-of-temporomandibular-joint-ankylosis-report-of-five-cases-with-review-of-literature
#1
Ravi Sharma, R Manikandhan, P Sneha, Anantanarayanan Parameswaran, J Naveen Kumar, Hermann F Sailer
INTRODUCTION AND OBJECTIVES: Management of temporomandibular joint (TMJ) ankylosis is a challenging and rather daunting task owing to complex abnormal anatomy and its sequel to craniofacial structures. Various autogenous grafts and alloplastic materials have been tried with variable success for creation of a near-normal joint. In recent years, neocondyle distraction has added a new dimension to the management of TMJ ankylosis. The aim of this paper is to describe the role of neocondyle distraction in TMJ ankylosis...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28718441/is-intra-articular-steroid-injection-to-the-temporomandibular-joint-for-juvenile-idiopathic-arthritis-more-effective-and-efficient-when-performed-with-image-guidance
#2
Cory M Resnick, Pouya M Vakilian, Leonard B Kaban, Zachary S Peacock
PURPOSE: To compare short-term outcomes and procedure times for intra-articular steroid injection (IASI) to the temporomandibular joint (TMJ) with and without the use of intraoperative image guidance for patients with juvenile idiopathic arthritis (JIA). MATERIALS AND METHODS: This is a retrospective study of children with JIA who underwent TMJ IASI at Boston Children's Hospital (Boston, MA). Patients were divided into groups according to IASI technique: 1) "landmark" group if performed by an oral and maxillofacial surgeon using an anatomic landmark technique with no intraoperative image guidance or 2) "image-guided" group if performed by an interventional radiologist using intraoperative ultrasound and computed tomography...
April 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28717293/utility-of-vaccum-pressed-silicon-sheet-as-a-bite-raising-appliance-in-the-management-of-tmj-dysfunction-syndrome
#3
Abhay Datarkar, Surendra Daware, Ravi Dande
INTRODUCTION: Temporomandibular disorders (TMDs) represent a group of painful conditions involving the muscles of mastication and the temporomandibular joint (TMJ) that frequently encountered in general clinical practice. This study is designed to assess the utility of vacuum pressed silicon sheet as a bite raising appliance in the management of TMJ dysfunction syndrome. METHODOLOGY: The patients for this study were selected from those with the chief complaint of TMJ disorder...
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28714016/elastin%C3%A2-derived-peptides-are-involved-in-the-processes-of-human-temporomandibular-disorder-by-inducing-inflammatory-responses-in-synovial-cells
#4
Kazuhiko Kobayashi, Rei Jokaji, Mayuko Miyazawa-Hira, Shigeyuki Takatsuka, Akira Tanaka, Kazuhiro Ooi, Hiroyuki Nakamura, Shuichi Kawashiri
Temporomandibular joint dysfunction (TMD) is a collection of clinical symptoms that involve masticatory muscles and the temporomandibular joint (TMJ). Common symptoms include limited jaw motion and joint sound/pain, along with TMJ disc displacement. TMD is frequently associated with synovitis, a chronic inflammation of the synovium. Fibroblast‑like synovial cells have been identified to produce several inflammatory mediators and may have an important role in the progression of TMJ inflammation. Degradation of the extracellular matrix molecule elastin may lead to the release of bioactive peptides...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713426/3d-morphology-analysis-of-tmj-articular-eminence-in-magnetic-resonance-imaging
#5
Izabella Nascimento Falcão, Maria Beatriz Carrazzone Cal Alonso, Lucas Hian da Silva, Sérgio Lúcio Pereira de Castro Lopes, Lívia Pichi Comar, André Luiz Ferreira Costa
PURPOSE: The objective of this study was to evaluate the computational reconstruction of the articular eminence of the temporomandibular joint (TMJ) based on magnetic resonance imaging (MRI) and semiautomatic volumetric segmentation techniques for morphological classification of the TMJ structure. MATERIALS AND METHODS: A total of 36 MRI scans of TMJ individuals were selected and formatted by using the ITK-SNAP software, consisting of MRI segmentation and generation of 3D models...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28712174/arthrocentesis-for-temporomandibular-joint-pain-dysfunction-syndrome
#6
Shahid Rauf Jamot, Zafar Ali Khan, Tahir Ullah Khan, Riaz Ahmad Waraich, Muhammad Farooq
BACKGROUND: Temporomandibular joint (TMJ) dysfunction is painful condition of facial musculoskeletal system. Arthrocentesis is less invasive treatment of TMJ dysfunctions. It has been used to treat variety of TMJ disorders. The objective of this study was to determine the success of arthrocentesis in TMJPDS patients where conservative treatment had failed. METHODS: This descriptive case study of 45 patients was completed in 6 months at Outpatient Department of Oral and Maxillofacial Surgery, Mayo hospital Lahore...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28711310/acquired-heterotopic-ossification-of-the-temporomandibular-joint
#7
REVIEW
L G Mercuri, B M Saltzman
Although the risk factors and diagnosis of heterotopic ossification (HO) are discussed in the orthopedics literature, the etiology of HO, as well as its prevention and management, remain theoretical. Furthermore, there is a lack of information in the literature regarding HO in temporomandibular joint replacement (TMJR). This article provides a qualitative review of information relative to the etiology, diagnosis, and management of HO to inform and encourage further investigation in TMJR. The orthopedic HO literature considered for this qualitative review was drawn from a comprehensive examination of the subject published previously by one of the authors...
July 12, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28699681/occurrence-of-signs-of-osteoarthritis-arthrosis-in-the-temporomandibular-joint-on-panoramic-radiographs-in-swedish-women
#8
Karin Bäck, Margareta Ahlqwist, Magnus Hakeberg, Lars Dahlström
OBJECTIVES: To determine the prevalence and incidence of radiographic signs of osteoarthritis/osteoarthrosis (OA) in the temporomandibular joint (TMJ) among middle-aged and older women. METHODS: Data were collected from ongoing representative, longitudinal and repeated cross-sectional studies in Gothenburg, Sweden. Panoramic radiographs (PAN) have been taken regularly since 1968. The cohorts were systematically selected from the female population at the ages of 38, 50, 62 and 74...
July 12, 2017: Community Dentistry and Oral Epidemiology
https://www.readbyqxmd.com/read/28692514/application-of-bidirectional-distraction-osteogenesis-for-the-treatment-of-mandibular-micriognathia-caused-by-temporomandibular-joint-ankylosis
#9
Chi Zhang, Yunfeng Li, Bin Ye, Yao Liu, Chongyun Bao, Songsong Zhu
BACKGROUND: Temporomandibular joint (TMJ) ankylosis is a joint disorder that refers to bone or fibrous adhesion of the anatomic joint components and the ensuing loss of function. When it happens on children, it is always accompanied by dentofacial deformities. The objective of this study was to describe the authors' experience of bidirectional distraction osteogenesis for the treatment of mandibular deformities caused by TMJ ankylosis. METHODS: Sixteen patients with TMJ ankylosis and severe secondary mandibular deformities were treated with bidirectional distraction osteogenesis and release of joint from January 2013 to December 2015...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28691465/bilateral-coronoid-hyperplasia-a-report-of-six-cases
#10
M Romano, G Porcellini, D Rossi, A Bolzoni, A B Giannì, F J Silvestre, A Baj
Bilateral coronoid process hyperplasia is a rare condition defined as an abnormal elongation of the mandibular coronoid process, formed of histologically normal bone. Coronoid process hyperplasia usually develops progressively, and the clinical symptoms are often similar to those of temporomandibular joint disorders (TMD). Therefore, it is often misdiagnosed as TMD initially. From 2013 to 2016, six patients were referred to our maxillofacial surgery unit by their dentist, to evaluate mouth opening with suspected TMJ disorder...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28690356/diagnostic-index-an-open-source-tool-to-classify-tmj-oa-condyles
#11
Beatriz Paniagua, Laura Pascal, Juan Prieto, Jean Baptiste Vimort, Liliane Gomes, Marilia Yatabe, Antonio Carlos Ruellas, Francois Budin, Steve Pieper, Martin Styner, Erika Benavides, Lucia Cevidanes
Osteoarthritis (OA) of temporomandibular joints (TMJ) occurs in about 40% of the patients who present TMJ disorders. Despite its prevalence, OA diagnosis and treatment remain controversial since there are no clear symptoms of the disease, especially in early stages. Quantitative tools based on 3D imaging of the TMJ condyle have the potential to help characterize TMJ OA changes. The goals of the tools proposed in this study are to ultimately develop robust imaging markers for diagnosis and assessment of treatment efficacy...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28688540/management-of-the-condyle-following-the-resection-of-tumours-of-the-mandible
#12
L Wang, K Liu, Z Shao, Z-J Shang
The aim of this study was to assess the management of the condyle during the restoration of mandibular defects following tumour resection. A total of 41 patients who underwent simultaneous tumour resection and reconstruction with vascularized iliac myocutaneous flaps for mandibular defects, from September 2010 to October 2014, were included. These patients were divided into three groups: group 1, condyle preserved; group 2, condyle sacrificed; group 3, condyle frozen. Patients were followed up at 1, 3, 6, and 12 months for the evaluation of appearance, occlusion, and speech...
July 5, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28688538/biomechanical-properties-of-murine-tmj-articular-disc-and-condyle-cartilage-via-afm-nanoindentation
#13
Prashant Chandrasekaran, Basak Doyran, Qing Li, Biao Han, Till E Bechtold, Eiki Koyama, X Lucas Lu, Lin Han
This study aims to quantify the biomechanical properties of murine temporomandibular joint (TMJ) articular disc and condyle cartilage using AFM-nanoindentation. For skeletally mature, 3-month old mice, the surface of condyle cartilage was found to be significantly stiffer (306±84kPa, mean±95% CI) than those of the superior (85±23kPa) and inferior (45±12kPa) sides of the articular disc. On the disc surface, significant heterogeneity was also detected across multiple anatomical sites, with the posterior end being the stiffest and central region being the softest...
June 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28687489/fas-s1p1-crosstalk-via-nf-%C3%AE%C2%BAb-activation-in-osteoclasts-controls-subchondral-bone-remodeling-in-murine-tmj-arthritis
#14
Islamy Rahma Hutami, Takashi Izawa, Akiko Mino-Oka, Takehiro Shinohara, Hiroki Mori, Akihiko Iwasa, Eiji Tanaka
Enhanced turnover of subchondral trabecular bone is a hallmark of rheumatoid arthritis (RA) and it results from an imbalance between bone resorption and bone formation activities. To investigate the formation and activation of osteoclasts which mediate bone resorption, a Fas-deficient MRL/lpr mouse model which spontaneously develops autoimmune arthritis and exhibits decreased bone mass was studied. Various assays were performed on subchondral trabecular bone of the temporomandibular joint (TMJ) from MRL/lpr mice and MRL+/+ mice...
July 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28687468/two-different-techniques-of-manufacturing-tmj-replacements-a-technical-report
#15
Marcin Kozakiewicz, Tomasz Wach, Piotr Szymor, Rafał Zieliński
INTRODUCTION: Presently, during the surgical treatment of the patients in maxillofacial surgery, one can use various medical implants. Moreover custom made implants are being used. Replacements may be fitted to the structure and shape of the human skull owing to CAD/CAM (custom aided design/manufacture) called customized implants. This study was aimed to report for the first time clinical material from which custom implants, using two different techniques, were manufactured to reconstruct the temporomandibular joint (TMJ)...
June 12, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28685013/arthroscopic-approach-for-treating-a-pigmented-villonodular-sinovitis-of-tmj-a-case-report
#16
Maria Roman-Ramos, Paolo Cariati, Almudena Cabello-Serrano, Miguel Garcia-Martin, Blas Garcia-Medina
The present report describes the case of a 29-year-old man referred to our service for TMJ pain and progressive reduction of the mouth opening. Differential diagnostics included rheumatologic diseases, monoarthritis and intraarticular lumps. In this line, a face CT scan and a MRI of TMJ were carried out in order to ensure a proper diagnosis. These tests showed a solid lesion into the joint cavity. In view of that, we decided to perform a diagnostic and therapeutic arthroscopy of TMJ. Histopathological studies confirmed the diagnosis of pigmented villonodular synovitis...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28684076/expression-of-notch-signaling-pathway-during-osteoarthritis-in-the-temporomandibular-joint
#17
Lingli Lan, Yangmei Jiang, Weina Zhang, Ting Li, Binbin Ying, Songsong Zhu
PURPOSE: Our study aim was to characterize the expression of Notch molecules during temporomandibular joint osteoarthritis (TMJOA), thus exploring the mechanism and roles that Notch signaling possibly plays in the initiation and progression of TMJOA. MATERIALS AND METHODS: A total of 126 mice were divided randomly into experimental groups, a sham-surgery group and a normal control group. In the experimental group, total discectomy was performed in the right temporomandibular joint (TMJ) to induce TMJOA; the sham-operation group underwent the same procedure without disc removal, and the normal control group was left undisturbed...
June 3, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28680846/effectiveness-of-digital-subtraction-radiography-in-detecting-artificially-created-osteophytes-and-erosions-in-the-temporomandibular-joint
#18
Husniye Demirturk Kocasarac, Peruze Celenk
PURPOSE: Erosions and osteophytes are radiographic characteristics that are found in different stages of temporomandibular joint (TMJ) osteoarthritis. This study assessed the effectiveness of digital subtraction radiography (DSR) in diagnosing simulated osteophytes and erosions in the TMJ. MATERIALS AND METHODS: Five intact, dry human skulls were used to assess the effectiveness of DSR in detecting osteophytes. Four cortical bone chips of varying thicknesses (0...
June 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28675008/-establishment-of-rat-models-with-altered-anterior-guidance-and-observation-of-histological-changes-in-temporomandibular-joint-synovium
#19
Li Yuxuan, Zhai Tong, Tan Wenhong, Bai Lekang, Xiao Min
OBJECTIVE: This study aims to establish a stable animal model with altered anterior guidance and investigate histological changes on temporomandibular joint (TMJ) synovium in rats. METHODS: Thirty-two rats were divided into four groups, namely, control group, anterior-guidance-deficient group (T1), and anterior guidance inclined up to 15 degree (T2) and 30 degree (T3) groups. Metal crowns that add 15 and 30 degrees to the palatal side were cemented to the incisors of maxilla to increase the inclination of anterior guidance...
June 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28673836/microneedles-enhance-topical-delivery-of-15-deoxy-%C3%AE-12-14-prostaglandin-j2-and-reduce-nociception-in-temporomandibular-joint-of-rats
#20
Cristina G Macedo, Amit K Jain, Michelle FranzMontan, Marcelo H Napimoga, Juliana T Clemente-Napimoga, Harvinder Singh Gill
The pain arising from temporomandibular disorders is often treated with opioids and agents that inhibit the immune response and are associated with substantial adverse effects and long-term risks. Thus, the development of new therapies that are safer and more effective is of great interest to patients and clinicians. 15-deoxy-Δ(12,14)-prostaglandin J2 (15d-PGJ2) is naturally produced in the human body and has anti-inflammatory properties. We have previously shown in a rat temporomandibular joint (TMJ) model that injection of 15d-PGJ2 into the rat TMJ can provide antinociceptive relief against a subsequent noxious challenge from formalin injection into the same TMJ...
June 30, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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