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Implant. Temporomandibular joint

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https://www.readbyqxmd.com/read/29777779/bilateral-total-mandibular-reconstruction-with-patient-specific-implants-for-temporomandibular-joint-ankylosis
#1
Jorge Chaurand
Temporomandibular joint (TMJ) ankylosis is a complex entity that requires accurate diagnosis and prompt treatment. Multiple surgical modalities have been proposed to treat TMJ ankylosis, including gap arthroplasty, interpositional arthroplasty, and total joint reconstruction. This article is to report one treated with patient specific implants due to its complexity, technical considerations are presented and could be an option for patients with similar conditions requiring this type of complicated treatment...
May 16, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29772190/serum-metal-levels-in-maxillofacial-reconstructive-surgery-patients-a-pilot-study
#2
Louis G Mercuri, Michael Miloro, Anastasia K Skipor, Divya Bijukumar, Cortino Sukotjo, Mathew T Mathew
PURPOSE: The aim of this pilot study was to assay metal concentrations in the serum of patients who had undergone dental implant placement, orthognathic surgery using rigid metal fixation plates and screws, and total temporomandibular joint replacement (TMJ TJR). MATERIALS AND METHODS: Thirty patients were identified and included in this pilot study. Sixteen patients (9 men and 8 women), with an average age of 44 years (range, 19 to 79 yr), provided informed consent to participate and were divided into 3 study groups with 4 patients in each (group 1, orthognathic surgery; group 2, TMJ TJR; and group 3, dental implant placement)...
April 21, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29755988/bite-forces-and-their-measurement-in-dogs-and-cats
#3
REVIEW
Se Eun Kim, Boaz Arzi, Tanya C Garcia, Frank J M Verstraete
Bite force is generated by the interaction of the masticatory muscles, the mandibles and maxillae, the temporomandibular joints (TMJs), and the teeth. Several methods to measure bite forces in dogs and cats have been described. Direct in vivo measurement of a bite in dogs has been done; however, bite forces were highly variable due to animal volition, situation, or specific measurement technique. Bite force has been measured in vivo from anesthetized dogs by electrical stimulation of jaw adductor muscles, but this may not be reflective of volitional bite force during natural activity...
2018: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29608904/foreign-body-giant-cell-reaction-to-a-proplast-teflon-interpositional-implant-a-case-report-and-literature-review
#4
Kevin C Lee, Sidney B Eisig, Michael A Perrino
After discectomy, interpositional implants (IPIs) were believed to provide temporomandibular joint stability and protect against degenerative joint space remodeling. Alloplastic IPIs gained popularity in the late 1970s because the practice showed early success without donor site morbidity. However, these IPIs were subject to substantial fragmentation and fatigue under function. The resulting debris elicited an exuberant foreign body giant cell response that progressively eroded adjacent structures. Although most of these IPIs were removed in the years after their recall by the US Food and Drug Administration in 1991, some remained in circulation...
March 8, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29550379/regenerative-potential-of-various-soft-polymeric-scaffolds-in-the-temporomandibular-joint-condyle
#5
Adam R Chin, Jin Gao, Yadong Wang, Juan M Taboas, Alejandro J Almarza
PURPOSE: Biodegradable polymeric scaffolds have been used for tissue engineering approaches and can be used to regenerate temporomandibular joint (TMJ) tissues. Synthetic acellular polymeric poly(glycerol sebacate) (PGS) scaffolds and natural scaffolds made from gelatin are polymeric scaffold sponges that could provide a substrate for cell infiltration and remodeling. The authors studied the regenerative potential of these 2 scaffolds in addition to a bioactive signal, magnesium (Mg), in a novel fibrocartilage defect model in the goat mandibular condylar cartilage (MCC)...
February 22, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29400140/scaffold-based-temporomandibular-joint-tissue-regeneration-in-experimental-animal-models-a-systematic-review
#6
Espen Helgeland, Siddharth Shanbhag, Torbjørn Ostvik Pedersen, Kamal Mustafa, Annika Rosén
Reconstruction of degenerated temporomandibular joint (TMJ) structures remains a clinical challenge. Tissue engineering (TE) is a promising alternative to current treatment options, where the TMJ is either left without functional components, or replaced with autogenous, allogeneic, or synthetic grafts. The objective of this systematic review was to answer the focused question: in experimental animal models, does the implantation of biomaterial scaffolds loaded with cells and/or growth factors (GFs) enhance regeneration of the discal or osteochondral TMJ tissues, compared with scaffolds alone, without cells, or GFs? Following PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analysis) guidelines, electronic databases were searched for relevant controlled preclinical in vivo studies...
March 8, 2018: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29393880/temporomandibular-joint-regenerative-medicine
#7
REVIEW
Xavier Van Bellinghen, Ysia Idoux-Gillet, Marion Pugliano, Marion Strub, Fabien Bornert, Francois Clauss, Pascale Schwinté, Laetitia Keller, Nadia Benkirane-Jessel, Sabine Kuchler-Bopp, Jean Christophe Lutz, Florence Fioretti
The temporomandibular joint (TMJ) is an articulation formed between the temporal bone and the mandibular condyle which is commonly affected. These affections are often so painful during fundamental oral activities that patients have lower quality of life. Limitations of therapeutics for severe TMJ diseases have led to increased interest in regenerative strategies combining stem cells, implantable scaffolds and well-targeting bioactive molecules. To succeed in functional and structural regeneration of TMJ is very challenging...
February 2, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29381612/treatment-of-mandibular-ameloblastoma-involving-the-mandibular-condyle-resection-and-concomitant-reconstruction-with-a-custom-hybrid-total-joint-prosthesis-and-iliac-bone-graft
#8
Mathilde Sarlabous, David J Psutka
AIM: To describe the treatment of ameloblastoma involving the mandibular body and condyle in 3 patients. METHODS: This report describes 3 patients with large ameloblastomas (2 were second recurrences) treated by partial mandibular resection. Involvement of the mandibular condyle in these 3 patients made the reconstruction more challenging. Reconstruction included immediate temporomandibular joint replacement by a custom-made alloplastic total joint and mandibular body (Zimmer-Biomet, Jacksonville, FL)...
February 7, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29304328/use-of-intraoperative-computed-tomography-in-craniomaxillofacial-trauma-surgery
#9
Karl Cuddy, Baber Khatib, R Bryan Bell, Allen Cheng, Ashish Patel, Melissa Amundson, Eric J Dierks
PURPOSE: The use of technology to aid in assessment, planning, and management of complex craniomaxillofacial injuries is increasingly common. Preoperative computed tomography (CT) evaluation is considered the standard of care, and intraoperative imaging is becoming increasingly accessible. Limited data exist regarding the implication of intraoperative CT on decision making in the management of all sites of facial fractures. The purposes of this study were to characterize the use of an intraoperative CT scanner for craniomaxillofacial surgery within our institution, to quantify the effect of intraoperative CT on surgical decision making, and to attempt to provide guidance on when to use this technology...
December 13, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29126692/biomaterials-in-temporomandibular-joint-replacement-current-status-and-future-perspectives-a-narrative-review
#10
REVIEW
N De Meurechy, A Braem, M Y Mommaerts
The alloplastic total temporomandibular joint (TMJ) prosthesis has a long history, with many different materials and designs used. While several of these materials have proven valuable over time, many others have not been suitable for implantation, resulting in failure and the need for explantation of the implant. Because of the failure of several of these systems, the use of alloplastic prostheses has reduced dramatically, despite their advantages over autogenous restoration. The aim of this narrative review is to discuss the criteria that must be met by a biomaterial in order for it to be considered suitable for implantation, as well as the common complications that can occur...
April 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28843402/temporomandibular-joint-reconstruction-with-stock-and-custom-made-devices-indications-and-results-of-a-14-year-experience
#11
Giovanni Gerbino, Emanuele Zavattero, Gianfranco Bosco, Sid Berrone, Guglielmo Ramieri
PURPOSE: Temporomandibular joint (TMJ) reconstruction with alloplastic implants is a reliable, safe and effective treatment option for selected debilitating pathologies of the TMJ. This study retrospectively analyzes our 14-year experience in total alloplastic reconstruction of the TMJ using stock and custom Biomet prostheses. Indications, results and rationale for the choice of stock and custom-made devices are discussed. MATERIAL AND METHODS: Patients were enrolled in the study who underwent single-stage alloplastic total joint replacement from January 2000 to October 2014...
October 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28792464/histological-and-immunohistochemical-analyses-of-repair-of-the-disc-in-the-rabbit-temporomandibular-joint-using-a-collagen-template
#12
Kuo-Hwa Wang, Wing P Chan, Li-Hsuan Chiu, Yu-Hui Tsai, Chia-Lang Fang, Charn-Bing Yang, Kuan-Chou Chen, Hung-Li Tsai, Wen-Fu Lai
A previous study demonstrated that the reconstituted type I collagen matrix extracted from rabbit tendons enabled the TMJ disc to regenerate in the rabbit. The aim of this study was to investigate changes in the extracellular matrix (ECM) and mechanisms of regeneration in the TMJ disc. In 36 New Zealand rabbits that underwent a partial discectomy, discs were replaced with reconstituted collagen templates for 3 months. A histological analysis showed that moderate to severe degeneration appeared in partially discectomized joints without implantation...
August 9, 2017: Materials
https://www.readbyqxmd.com/read/28764769/anabolic-role-of-lysyl-oxidase-like-2-in-cartilage-of-knee-and-temporomandibular-joints-with-osteoarthritis
#13
Weam Alshenibr, Mustafa M Tashkandi, Saqer F Alsaqer, Yazeed Alkheriji, Amelia Wise, Sadanand Fulzele, Pushkar Mehra, Mary B Goldring, Louis C Gerstenfeld, Manish V Bais
BACKGROUND: Lysyl oxidase like-2 (LOXL2) is a copper-dependent amine oxidase. Our previous studies showed that LOXL2 is elevated during mouse fracture healing. The goal of this study was to evaluate the potential of LOXL2 to act as an anabolic agent in cartilage affected by osteoarthritis (OA). METHODS: LOXL2 was visualized in tissues from human knee and hip joints and temporomandibular joints (TMJ) by immunofluorescence. The activity of LOXL2 in human articular and TMJ chondrocytes was assessed by cell-based assays, microarray analysis, and RT-qPCR, and LOXL2-mediated activation of NF-κB and extracellular signal-related kinase (ERK) signaling pathways was measured by western blotting...
August 2, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28687468/two-different-techniques-of-manufacturing-tmj-replacements-a-technical-report
#14
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)...
September 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28623683/the-effects-of-unilateral-alloplastic-temporomandibular-joint-replacement-on-the-opposite-side-natural-joint-a-finite-element-analysis
#15
Burak Bekcioglu, Emel Bulut, Burcu Bas
PURPOSE: The purpose of this study was to evaluate the stress distribution on the temporomandibular joint (TMJ) prosthesis and contralateral natural TMJ with finite-element analysis. MATERIALS AND METHODS: A TMJ implant was used to create a 3-dimensional model with a computer. This model was integrated with a mandible model created with a computer by use of computed tomography images, similar to a real TMJ replacement procedure. Masticatory loads were applied to the model...
November 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28612700/knowledge-gaps-in-oral-and-maxillofacial-surgery-a-systematic-mapping
#16
Marie Österberg, Anders Holmlund, Bo Sunzel, Sofia Tranæus, Svante Twetman, Bodil Lund
OBJECTIVES: The aim of this study was to evaluate available knowledge and identify knowledge gaps within the field of oral and maxillofacial surgery, by systematically collecting and evaluating systematic reviews. Twelve specific domains were selected: surgical removal of teeth, antibiotic and corticosteroid prophylaxis, orofacial infections, dental and facial trauma, orthognathic surgery, reconstructive surgery, benign tumors, cysts, premalignant lesions, oral complications of treatment of malignant tumors, hyperbaric oxygen therapy, temporomandibular joint surgery, cost effectiveness of different surgical treatments, and ethics...
January 2017: International Journal of Technology Assessment in Health Care
https://www.readbyqxmd.com/read/28602382/value-in-oral-and-maxillofacial-surgery-a-systematic-review-of-economic-analyses
#17
REVIEW
Benjamin P Geisler, Yisi D Ji, Zachary S Peacock
PURPOSE: The purpose of this study is to describe the state of economic analyses in the field of oral and maxillofacial surgery (OMS). MATERIALS AND METHODS: A systematic search of published literature up to 2016 was performed. The inclusion criteria were as follows: English-language articles on economic analyses pertaining to OMS including anesthesia and pain management; dentoalveolar surgery; orthognathic, cleft, and/or obstructive sleep apnea treatment; pathology; reconstruction; temporomandibular disorders; trauma; and other...
November 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28532603/matrix-replenishing-by-bmscs-is-beneficial-for-osteoarthritic-temporomandibular-joint-cartilage
#18
M Zhang, H Yang, L Lu, X Wan, J Zhang, H Zhang, X Liu, X Huang, G Xiao, M Wang
OBJECTIVES: The present goal was to explore whether matrix replenishment is the primary requirement for osteoarthritic (OA) cartilage. METHODS: Cells isolated from the superficial and deep zone cartilage of a pig temporomandibular joint (TMJ) were exposed to fluid flow shear stress (FFSS). Differences in matrix production and cellular differentiation were detected. Unilateral anterior crossbite (UAC) was applied to C57BL/6J female mice. Green fluorescent protein-labeled exogenous bone marrow stromal cells (GFP-BMSCs) were injected weekly into TMJs, starting from 3 weeks of UAC stimulation and continuing for 4-, 8- and 12-weeks...
September 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28449848/adverse-local-tissue-responses-to-failed-temporomandibular-joint-implants
#19
Louis G Mercuri, Robert M Urban, Deborah J Hall, Mathew T Mathew
PURPOSE: The purpose of this study was to determine whether failed alloplastic temporomandibular joint replacement (TMJR) devices can elicit the aseptic lymphocyte-dominated vasculitis-associated lesion (ALVAL) reaction seen in some patients with metal-on-metal hip arthroplasties. MATERIALS AND METHODS: This study involved analysis of paraffin-embedded sections of peri-implant tissue from failed TMJ implant cases obtained from 3 independent sources. Hematoxylin and eosin staining, conventional and polarized light microscopy, back-scattered electron imaging, and energy-dispersive x-ray analysis were used...
October 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28341434/trends-in-maxillofacial-imaging
#20
REVIEW
R Boeddinghaus, A Whyte
Maxillofacial imaging encompasses radiology of the teeth and jaws, including the temporomandibular joints. Modalities used include intra-oral radiographs, panoramic tomography, cephalograms, cone-beam computed tomography, computed tomography, magnetic resonance imaging, ultrasound, and radionuclide imaging. Common indications for imaging are impacted and supernumerary teeth, dental implants, inflammatory dental disease, and fibro-osseous lesions, cysts, and masses of the jaws. Osteonecrosis of the jaws may follow radiotherapy or the use of bisphosphonates and other drugs...
January 2018: Clinical Radiology
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