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https://www.readbyqxmd.com/read/28330922/joint-histology-in-alligator-mississippiensis-challenges-the-identification-of-synovial-joints-in-fossil-archosaurs-and-inferences-of-cranial-kinesis
#1
Alida M Bailleul, Casey M Holliday
Archosaurs, like all vertebrates, have different types of joints that allow or restrict cranial kinesis, such as synovial joints and fibrous joints. In general, synovial joints are more kinetic than fibrous joints, because the former possess a fluid-filled cavity and articular cartilage that facilitate movement. Even though there is a considerable lack of data on the microstructure and the structure-function relationships in the joints of extant archosaurs, many functional inferences of cranial kinesis in fossil archosaurs have hinged on the assumption that elongated condylar joints are (i) synovial and/or (ii) kinetic...
March 29, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28330574/bi-maxillary-dentigerous-cyst-in-a-non-syndromic-child%C3%A2-%C3%A2-review-of-literature-with-a-case-presentation
#2
A Dhupar, S Yadav, V Dhupar, H C Mittal, S Malik, P Rana
Dentigerous cysts are the most common developmental odontogenic cysts of the jaw, which usually occur in the second and third decade of life. It is most frequently associated with impacted mandibular third molar teeth and impacted canines. Bilateral/multiple dentigerous cysts are rare and typically associated with developmental syndromes. Non-syndromic dentigerous cyst occurring bilaterally or involving both arches at the same time is very rare. Here, we discuss the review of literature with a case of unusual occurrence of non-syndromic bi-maxillary dentigerous cysts in a child...
February 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28330568/-evaluation-of-healing-time-of-osteochemonecrosis-of-the-jaw-after-surgery-single-center-retrospective-study-and-review-of-the-literature
#3
A Berquet, A Louvrier, F Denis, F Bornert, E Weber, C Meyer
INTRODUCTION: Osteochemonecrosis of the jaw (ONJ) is a chronic ischemic bone exposure. It has an increasing incidence. ONJ is mainly related to bisphosphonate and denosumab therapies in oncologic settings. Healing is considered uncertain ad as occurring slowly. International recommendations suggest to treat ONJ symptomatically in a first attempt. A surgical procedure, potentially aggressive, should be carefully weight up in patients in poor condition and whose life expectancy is often limited...
February 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28329640/diagnostic-parameters-of-children-with-basal-cell-carcinoma-nevus-syndrome
#4
Fariha T Siddiqui
Basal Cell Carcinoma Nevus Syndrome (BCCNS) is a multi-system genetic disease characterized by the development of multiple basal cell carcinomas (BCCs), macrocephaly, medulloblastomas, jaw keratocysts, and coarse facial features, amongst other symptoms. The major and minor criteria for adults with BCCNS are often extrapolated for children, however, little is known about the disease presentation of children with BCCNS. Our study focused on bringing the pediatric presentation of BCCNS to light. To the best of our knowledge, we are the first to investigate BCCNS and its medical impact on children...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328109/a-cohort-study-of-gorlin-syndrome-with-emphasis-on-standardised-phenotyping-and-quality-of-life-assessment
#5
Aamira J Huq, Michael Bogwitz, Alexandra Gorelik, Ingrid M Winship, Susan M White, Alison H Trainer
BACKGROUND: Gorlin syndrome (Nevoid Basal Cell Carcinoma Syndrome) is a rare genetic predisposition to basal cell carcinomas (BCCs), keratocysts of the jaw and calcification of the falx cerebri amongst other clinical features. With the advent of sonic hedgehog inhibitors for the treatment of BCCs, it is timely to establish a cohort of individuals with Gorlin syndrome and collect standardised phenotypic information on these individuals. Moreover, the health-related quality of life (QoL) in individuals with Gorlin syndrome is not well studied...
March 22, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28327698/accuracy-and-reliability-of-different-cone-beam-computed-tomography-cbct-devices-for-structural-analysis-of-alveolar-bone-in-comparison-with-multislice-ct-and-micro-ct
#6
Jeroen Van Dessel, Laura Ferreira Pinheiro Nicolielo, Yan Huang, Walter Coudyzer, Benjamin Salmon, Ivo Lambrichts, Reinhilde Jacobs
OBJECTIVE: The aim of this study was to assess whether cone beam computed tomography (CBCT) may be used for clinically reliable alveolar bone quality assessment in comparison to its clinical alternatives, multislice computed tomography and the gold standard (micro-CT). MATERIALS AND METHODS: Six dentate mandibular bone samples were scanned with seven CBCT devices (ProMax 3D Max, NewTom GiANO, Cranex 3D, 3D Accuitomo 170, Carestream 9300, Scanora 3D, I-CAT Next generation), one micro-CT scanner (SkyScan 1174) and one MSCT machine (Somatom Definition Flash) using two protocols (standard and high-resolution)...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327697/seven-mm-long-dental-implants-in-posterior-jaws-3-year-report-of-an-ongoing-prospective-single-cohort-study
#7
Paulo Maló, Miguel de Araújo Nobre, Armando Lopes, Inês Gonçalves, Mariana Nunes
PURPOSE: To report on the outcome of 7 mm long implants in the rehabilitation of posterior areas of atrophic jaws 3 years after loading. MATERIALS AND METHODS: This prospective study included 127 patients treated with 217 implants supporting 165 fixed prostheses. Final abutments were delivered at surgery stage and in the large majority of patients (n = 116) the implants (n = 199) were loaded after 4 months. Primary outcome measures were implant success and prosthetic success calculated at patient level; secondary outcome measures were complications, and marginal bone level changes calculated at patient level...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327417/appositional-bone-graft-tunneled-technical-note
#8
Roberto Almeida de Azevedo, Felipe Seoane Matos, Leonardo Morais Godoy Figueiredo
INTRODUCTION: A satisfactory positioning of the dental implants is very important in the cosmetic and functional outcome in this treatment for edentulous. Insertion of an endosseous implant in the correct positioning requires sufficient bone volume. Therefore, bone-grafting procedures are becoming increasingly common, especially for the augmentation of horizontally deficient ridges. PRESENTATION OF CASE: Many patients have been treated with this technique of appositional Bone Graft Tunneled at our clinic since 2005...
February 20, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28326724/-research-progress-on-bisphosphonate-related-osteonecrosis-of-the-jaws
#9
Pan Jian, Wang Qizhang, Liu Jiyuan
Bisphosphonates (BPs), as potent drugs inhibiting bone resorption, have been widely used for treatment of several diseases. In recent years, dentists and oral and maxillofacial surgeons reported continuously increasing cases of bisphosphonate-related osteonecrosis of the jaws (BRONJ). This disease is clinically characterized by exposed bones, formation of sequestrum, pain, and halitosis. Provided that pathogenesis of BRONJ is unclear, effective treatments for this disease are currently unavailable. Thus, prevention plays an important role in the management of BRONJ...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28326708/-evaluation-of-electromyogram-activity-and-masticatory-efficiency-in-edentulous-individuals-whose-maxillomandibular-horizontal-relationship-records-were-obtained-with-three-different-methods
#10
Liu Cuiling, Yang Liyuan, Zheng Zheng, Gao Xu
OBJECTIVE: This study was performed to investigate the electromyographic (EMG) activity of the masseter muscle and the anterior temporalis muscle, as well as the masticatory efficiency after insertion of the dentures in edentulous individuals whose maxillomandibular horizontal relationship records were obtained with three different methods. METHODS: Ten edentulous individuals were enrolled in this study. Three types of complete dentures for these 10 edentulous patients were made according to their different maxillomandibular horizontal relationship records...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28326439/a-distinct-functional-distribution-of-%C3%AE-and-%C3%AE-motoneurons-in-the-rat-trigeminal-motor-nucleus
#11
Yukako Morita-Isogai, Hajime Sato, Mitsuru Saito, Eriko Kuramoto, Dong Xu Yin, Takeshi Kaneko, Takashi Yamashiro, Kenji Takada, Seog Bae Oh, Hiroki Toyoda, Youngnam Kang
Gamma-motoneurons (γMNs) play a crucial role in regulating isometric muscle contraction. The slow jaw-closing during mastication is one of the most functional isometric contractions, which is developed by the rank-order recruitment of alpha-motoneurons (αMNs) in a manner that reflects the size distribution of αMNs. In a mouse spinal motor nucleus, there are two populations of small and large MNs; the former was identified as a population of γMNs based on the positive expression of the transcription factor estrogen-related receptor 3 (Err3) and negative expression of the neuronal DNA-binding protein NeuN, and the latter as that of αMNs based on the opposite pattern of immunoreactivity...
March 22, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28325366/whorling-cellular-perineurioma-a-previously-undescribed-variant-closely-mimicking-monophasic-fibrous-synovial-sarcoma
#12
Michael Michal, Dmitry V Kazakov, Abbas Agaimy, Marta Hosova, Kvetoslava Michalova, Petr Grossmann, Petr Steiner, Faruk Skenderi, Semir Vranic, Michal Michal
The authors present a distinctive perineurioma (PN) variant which morphologically strongly resembles monophasic fibrous synovial sarcoma (MSS). The patients were 3 males and 1 female. The age ranged from 15 to 61years (mean: 44years). Locations included the sole, lower jaw, palm and foot. The tumor size ranged from 1.3cm to 2.5cm in the largest dimension (mean 1.8cm). Morphologically, all tumors had an identical, monotonous appearance. The perineurial cells were closely packed and created a confluent cellular whorls and/or sheets in a scarce stroma, with only focally discernible long, slender cytoplasmic processes typical for perineurial differentiation...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28324746/denosumab-in-advanced-unresectable-giant-cell-tumour-of-bone-gctb-for-how-long
#13
E Palmerini, N S Chawla, S Ferrari, M Sudan, P Picci, E Marchesi, M Piccinni Leopardi, I Syed, K K Sankhala, P Parthasarathy, W E Mendanha, M Pierini, A Paioli, S P Chawla
BACKGROUND: Giant-cell tumours of bone (GCTB) are RANK/RANK-ligand (RANKL) positive, aggressive and progressive osteolytic tumours. Denosumab, a RANKL inhibitor, was FDA-approved for adults and skeletally mature adolescents with unresectable GCTB or when surgical resection is likely to result in severe morbidity. Data on long-term toxicity and activity of denosumab monthly 'GCTB-schedule' (120 mg per 12/year, 1440 mg total dose/year) are lacking. METHODS: Patients with GCTB receiving denosumab, 120 mg on days 1, 8, 15, 29 and every 4 weeks thereafter, from 2006 to 2015 treated in two centres were included...
March 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28322334/the-evolutionary-origin-of-jaw-yaw-in-mammals
#14
David M Grossnickle
Theria comprises all but three living mammalian genera and is one of the most ecologically pervasive clades on Earth. Yet, the origin and early history of therians and their close relatives (i.e., cladotherians) remains surprisingly enigmatic. A critical biological function that can be compared among early mammal groups is mastication. Morphometrics and modeling analyses of the jaws of Mesozoic mammals indicate that cladotherians evolved musculoskeletal anatomies that increase mechanical advantage during jaw rotation around a dorsoventrally-oriented axis (i...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28322323/anti-inflammatory-properties-of-shikonin-contribute-to-improved-early-stage-diabetic-retinopathy
#15
Po-Lin Liao, Cheng-Hui Lin, Ching-Hao Li, Chi-Hao Tsai, Jau-Der Ho, George C Y Chiou, Jaw-Jou Kang, Yu-Wen Cheng
Diabetic retinopathy (DR), a major microvascular complication of diabetes, leads to retinal vascular leakage, neuronal dysfunction, and apoptosis within the retina. In this study, we combined STZ with whole-body hypoxia (10% O2) for quicker induction of early-stage retinopathy in C57BL/6 mice. We also compared the effects of a high glucose condition combined with hypoxia (1% O2) to a low glucose condition by using retinal pigment epithelial (RPE) cells, which are a crucial component of the outer blood-retinal barrier and the damage is related to retinopathy...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28322124/your-13-year-old-daughter-fell-at-school-she-reports-a-clicking-jaw-what-should-happen-next
#16
H Clifton Simmons
No abstract text is available yet for this article.
March 21, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28321127/ancient-evolutionary-origin-of-vertebrate-enteric-neurons-from-trunk-derived-neural-crest
#17
Stephen A Green, Benjamin R Uy, Marianne E Bronner
The enteric nervous system of jawed vertebrates arises primarily from vagal neural crest cells that migrate to the foregut and subsequently colonize and innervate the entire gastrointestinal tract. Here we examine development of the enteric nervous system in the basal jawless vertebrate the sea lamprey (Petromyzon marinus) to gain insight into its evolutionary origin. Surprisingly, we find no evidence for the existence of a vagally derived enteric neural crest population in the lamprey. Rather, labelling with the lipophilic dye DiI shows that late-migrating cells, originating from the trunk neural tube and associated with nerve fibres, differentiate into neurons within the gut wall and typhlosole...
March 20, 2017: Nature
https://www.readbyqxmd.com/read/28320457/mediastinal-syndrome-from-plasmablastic-lymphoma-in-human-immunodeficiency-virus-and-human-herpes-virus-8-negative-patient-with-polycythemia-vera-a-case-report
#18
Massimo Cajozzo, Vincenzo Davide Palumbo, Salvatore Buscemi, Giuseppe Damiano, Ada Maria Florena, Daniela Cabibi, Francesco Raffaele, Antonino Alessio Anzalone, Federica Fatica, Gerlando Cocchiara, Salvatore Dioguardi, Antonio Bruno, Francesco Paolo Caronia, Attilio Ignazio Lo Monte
BACKGROUND: Plasmoblastic lymphoma is a rare and aggressive subtype of diffuse large B cell lymphoma, which occurs usually in the jaw of immunocompromised subjects. CASE PRESENTATION: We describe the occurrence of plasmoblastic lymphoma in the mediastinum and chest wall skin of an human immunodeficiency virus-negative 63-year-old Caucasian man who had had polycytemia vera 7 years before. At admission, the patient showed a superior vena cava syndrome, with persistent dyspnoea, cough, and distension of the jugular veins...
March 21, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28319535/validation-of-therapeutic-anatomy-oriented-classification-in-endosseous-dental-implant-treatment-a-pilot-study
#19
Marius Kubilius, Yagmur Deniz Ilarslan, Tolga F Tözüm, Hom-Lay Wang, Ričardas Kubilius, Gintaras Juodzbalys
BACKGROUND: The purpose of the study was to validate a newly proposed therapeutic anatomically based clinical and radiological classification for dental implant treatment. METHODS: Eighty-one patients with at least 1 edentulous jaw segment (EJS) from 2 dental clinics were included in this study. Both clinical and radiological parameters were assessed in aesthetic and nonaesthetic zones. The data were then compared at preoperative, intraoperative, and postoperative (subdivided into early and late stage) study stages...
April 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28319279/borderline-lepromatous-leprosy-erythema-nodosum-leprosum-and-a-generalized-varicella-zoster-virus-infection
#20
Cornelis Kennedy, Bernard Naafs
We report the case of a thirty-year-old man with Mid-Borderline (BB) to Borderline Lepromatous Leprosy (BL) who was admitted to the hospital with blistering lesions on his upper and lower extremities. These lesions, which were partly filled with pus rapidly developed into erosions and ulcerations with hemorrhagic crusts. Other observations at time of admission included a tender erythematous plaque on his forehead, a drop foot on the right leg, muscle atrophy in both hands, a low grade fever, and pain and swelling in his right lower jaw...
March 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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