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https://www.readbyqxmd.com/read/27883359/the-contributions-of-dr-alfred-gysi
#1
Rodney D Phoenix, Robert L Engelmeier
This article is a historical overview of Dr. Alfred Gysi's contributions to the profession in the areas of denture tooth and articulator design. His understanding of occlusion and mandibular movement resulted in denture tooth designs and occlusal concepts still in widespread use.
November 24, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27867089/clinical-vascular-imaging-in-the-brain-at-7t
#2
Laurens Jl De Cocker, Arjen Lindenholz, Jaco Jm Zwanenburg, Anja G van der Kolk, Maarten Zwartbol, Peter R Luijten, Jeroen Hendrikse
Stroke and related cerebrovascular diseases are a major cause of mortality and disability. Even at standard-field-strengths (1.5T), MRI is by far the most sensitive imaging technique to detect acute brain infarctions and to characterize incidental cerebrovascular lesions, such as white matter hyperintensities, lacunes and microbleeds. Arterial time-of-flight (TOF) MR angiography (MRA) can depict luminal narrowing or occlusion of the major brain feeding arteries, and this without the need for contrast administration...
November 18, 2016: NeuroImage
https://www.readbyqxmd.com/read/27856841/hemolysis-generation-from-a-novel-linear-positive-displacement-blood-pump-for-cardiopulmonary-bypass-on-a-six-kilogram-piglet-a-preliminary-report
#3
D Scott Lawson, Derek Eilers, Suzanne Osorio Lujan, Maria Bortot, James Jaggers
BACKGROUND: Current blood pumps used for cardiopulmonary bypass generally fall into two different pump design categories; non-occlusive centrifugal pumps and occlusive, positive-displacement roller pumps. The amount of foreign surface area of extracorporeal circuits correlates with post-operative morbidity due to systemic inflammation, leading to a push for technology that reduces the amount of foreign surfaces. Current roller pumps are bulky and the tubing forms an arc in the pumping chamber (raceway), positioning the inlet 360 degrees from the outlet, making it very difficult to place the pump closer to the patient and to efficiently reduce tubing length...
November 16, 2016: Perfusion
https://www.readbyqxmd.com/read/27820707/resuscitative-endovascular-balloon-occlusion-of-the-aorta-promise-practice-and-progress
#4
Zane B Perkins, Robbie A Lendrum, Karim Brohi
PURPOSE OF REVIEW: Resuscitative endovascular balloon occlusion of the aorta (REBOA) is a minimally invasive damage control procedure for life-threatening abdominal or pelvic haemorrhage. The purpose of this review is to summarize the current understanding and experience with REBOA, outline potential future applications of this technology, and highlight priority areas for further research. RECENT FINDINGS: REBOA is a feasible method of achieving temporary aortic occlusion and can be performed rapidly, with a high degree of success, in the emergency setting (including at the scene of injury) by appropriately trained clinicians...
November 4, 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27805960/resuscitative-endovascular-balloon-occlusion-of-the-aorta-promise-practice-and-progress
#5
Zane B Perkins, Robbie A Lendrum, Karim Brohi
PURPOSE OF REVIEW: Resuscitative endovascular balloon occlusion of the aorta (REBOA) is a minimally invasive damage control procedure for life-threatening abdominal or pelvic haemorrhage. The purpose of this review is to summarize the current understanding and experience with REBOA, outline potential future applications of this technology, and highlight priority areas for further research. RECENT FINDINGS: REBOA is a feasible method of achieving temporary aortic occlusion and can be performed rapidly, with a high degree of success, in the emergency setting (including at the scene of injury) by appropriately trained clinicians...
December 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27800192/orthodontic-traction-of-impacted-canine-using-cantilever
#6
Cláudia Nakandakari, João Roberto Gonçalves, Daniel Serra Cassano, Taísa Boamorte Raveli, Jonas Bianchi, Dirceu Barnabé Raveli
The impaction of the maxillary canines causes relevant aesthetic and functional problems. The multidisciplinary approach to the proper planning and execution of orthodontic traction of the element in question is essential. Many strategies are cited in the literature; among them is the good biomechanical control in order to avoid possible side effects. The aim of this paper is to present a case report in which a superior canine impacted by palatine was pulled out with the aid of the cantilever on the Segmented Arch Technique (SAT) concept...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27790973/acidogenicity-and-acid-tolerance-of-streptococcus-oralis-and-streptococcus-mitis-isolated-from-plaque-of-healthy-and-incipient-caries-teeth
#7
Jeffrey A Banas, Min Zhu, Deborah V Dawson, Derek R Blanchette, David R Drake, Hongjie Gu, Ryan Frost, Grant McCaulley, Steven M Levy
BACKGROUND: Non-mutans low pH oral streptococci are postulated to contribute to caries etiology. OBJECTIVE: This study was undertaken to investigate whether the acidogenicity and acid tolerance of clinical strains of Streptococcus oralis and Streptococcus mitis correlate with health or early-stage enamel caries. DESIGN: S. oralis and S. mitis were isolated from plaque samples taken from the occlusal surfaces of second molars sampled at two different visits 4 years apart...
2016: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/27785586/the-randomized-shortened-dental-arch-study-influence-of-two-different-treatments-on-interdental-spacing-over-5%C3%A2-years
#8
Jaana-Sophia Kern, Stefan Wolfart, Ralf-Dieter Hilgers, Birgit Marré, Herbert Scheller, Jörg Strub, Klaus Böning, Wolfgang Hannak, Ralph G Luthardt, Guido Heydecke, Jan Huppertz, Peter Pospiech, Bernd Wöstmann, Helmut Stark, Torsten Mundt, Florentine Jahn, Matthias Kern, Daniel Edelhoff, Michael H Walter
OBJECTIVES: Being a secondary outcome in a multicenter randomized controlled trial, the present analysis focused on interdental spacing in the shortened dental arch (SDA). The aim was to evaluate changes in interdental spacing in dependence of two different treatments after an observation period of up to 5 years. MATERIAL AND METHODS: Patients were either treated with a partial removable dental prosthesis (PRDP) for molar replacement (PRDP group) or according to the SDA concept aiming at a premolar occlusion (SDA group) in a randomized manner...
October 26, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27747654/a-prospective-cross-over-study-to-evaluate-the-effect-of-two-different-occlusal-concepts-on-the-masseter-muscle-activity-in-implant-retained-mandibular-overdentures
#9
Ahmed M Abdelhamid, Kenda I Hanno, Mohamed H Imam
BACKGROUND: The purpose of this prospective cross-over study is to evaluate the effect of bilateral balanced occlusion and canine guidance occlusion on the masseter muscle activity using implant-retained mandibular overdentures. METHODS: After evaluation of 12 completely edentulous patients using cone beam computed tomography (CBCT), mucoperiosteal flaps were reflected exposing the mandibular interforaminal region. Two implants were placed in the interforaminal region for each of the 12 patients...
December 2015: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27683449/stroke-induced-blood-brain-barrier-breakdown-along-the-vascular-tree-no-preferential-affection-of-arteries-in-different-animal-models-and-in-humans
#10
Martin Krueger, Wolfgang Härtig, Clara Frydrychowicz, Wolf C Mueller, Andreas Reichenbach, Ingo Bechmann, Dominik Michalski
Stroke-induced blood-brain barrier breakdown promotes complications like cerebral edema and hemorrhagic transformation, especially in association with therapeutical recanalization of occluded vessels. As arteries, capillaries and veins display distinct functional and morphological characteristics, we here investigated patterns of blood-brain barrier breakdown for each segment of the vascular tree in rodent models of embolic, permanent, and transient middle cerebral artery occlusion, added by analyses of human stroke tissue...
September 28, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27677872/successful-coronary-surgical-stenting-a-new-hybrid-approach
#11
Javier G Poveda, Gustavo L Silva, Pedro C Silva, Ângelo Nobre
Our goal is to introduce a new hybrid coronary revascularization concept-coronary surgical stenting. The procedure was performed on a 78-year old woman with severe, long and calcified involvement of the proximal left anterior descending artery, chronic total occlusion of the mid-left anterior descending artery and severe disease in the distal left anterior descending artery. An off-pump minimally invasive procedure was performed through the fifth intercostal space, including concurrent surgical placement of a drug-eluting stent in the distal left anterior descending artery, through the left anterior descending artery graft incision, associated with the left internal mammary artery to the mid-left anterior descending artery graft...
September 27, 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/27630506/orthodontic-orthognathic-interventions-in-orthognathic-surgical-cases-paper-surgery-and-model-surgery-concepts-in-surgical-orthodontics
#12
Narayan H Gandedkar, Chai Kiat Chng, Vincent Kok Leng Yeow
Thorough planning and execution is the key for successful treatment of dentofacial deformity involving surgical orthodontics. Presurgical planning (paper surgery and model surgery) are the most essential prerequisites of orthognathic surgery, and orthodontist is the one who carries out this procedure by evaluating diagnostic aids such as crucial clinical findings and radiographic assessments. However, literature pertaining to step-by-step orthognathic surgical guidelines is limited. Hence, this article makes an attempt to provide an insight and nuances involved in the planning and execution...
July 2016: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/27618328/multidetector-ct-of-mandibular-fractures-reductions-and-complications-a-clinically-relevant-primer-for-the-radiologist
#13
David Dreizin, Arthur J Nam, Nikki Tirada, Martin D Levin, Deborah M Stein, Uttam K Bodanapally, Stuart E Mirvis, Felipe Munera
After the nasal bones, the mandible is the second most common site of facial fractures, and mandibular fractures frequently require open reduction. In the trauma injury setting, multidetector computed tomography (CT) has become the cornerstone imaging modality for determining the most appropriate treatment management, fixation method, and surgical approach. Multidetector CT is also used to assess the adequacy of the reduction and evaluate potential complications in the postoperative period. For successful restoration of the mandible's form and function, as well as management of posttraumatic and postoperative complications, reconstructive surgeons are required to have a detailed understanding of mandibular biomechanics, occlusion, and anatomy...
September 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27609117/the-effect-of-safranal-loaded-mucoadhesive-nanoemulsion-on-oxidative-stress-markers-in-cerebral-ischemia
#14
Niyaz Ahmad, Rizwan Ahmad, Atta Abbas Naqvi, Mohammad Ashafaq, Md Aftab Alam, Farhan Jalees Ahmad, Mastour Safer Al-Ghamdi
Antioxidants, with reported neuroprotective activity, encounter free radical induced neural damage leading to reduced risk of cerebral ischemia-reperfusion (IR) injury. Safranal, an antioxidant drug with potential role in the amelioration of cerebral ischemia, endures low solubility and poor absorption property thus resulting a low serum and tissue bioavailability. This research aims to prepare nanoemulsion with the concept; to increase the bioavailability in order to reduce oxidative stress-induced brain injury as well as to evaluate the brain-drug targeting following non-invasive nasal route administration in middle cerebral artery occlusion (MCAO) animal model...
September 9, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27601232/haptic-simulation-framework-for-determining-virtual-dental-occlusion
#15
Wen Wu, Hui Chen, Yuhai Cen, Yang Hong, Balvinder Khambay, Pheng Ann Heng
PURPOSE: The surgical treatment of many dentofacial deformities is often complex due to its three-dimensional nature. To determine the dental occlusion in the most stable position is essential for the success of the treatment. Computer-aided virtual planning on individualized patient-specific 3D model can help formulate the surgical plan and predict the surgical change. However, in current computer-aided planning systems, it is not possible to determine the dental occlusion of the digital models in the intuitive way during virtual surgical planning because of absence of haptic feedback...
September 6, 2016: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/27594571/-treatment-of-below-the-knee-lesions-broadening-the-limits-of-vascular-surgery
#16
C Caradu, A S Battut, C Gonthier, D Midy, E Ducasse
One third of patients with critical limb ischemia (CLI) has below the knee lesions and requires a restoration of direct blood flow into the foot. However, many of these patients are ineligible for open surgery. The primary goals thus become pain relief and limb salvage over patency. The angiosome concept helps determine the target artery to treat in priority. The endovascular approach has decreased morbidity and mortality rates compared to distal bypass surgery; while subintimal retrograde, trans-collateral and loop techniques push the limits of open surgery by reopening the plantar arch, thereby improving run-off...
September 1, 2016: Journal des Maladies Vasculaires
https://www.readbyqxmd.com/read/27571003/the-pathobiology-of-chronic-thromboembolic-pulmonary-hypertension
#17
Irene M Lang, Peter Dorfmüller, Anton Vonk Noordegraaf
Chronic thromboembolic pulmonary hypertension (CTEPH) is a late sequel of venous thromboembolism that cannot be completely reproduced in animal models. The prevalence of CTEPH in humans is estimated at roughly 17-20 per million; however, partly because up to 50% of patients with CTEPH never experience symptomatic pulmonary embolism, precise numbers on the incidence and prevalence are not known. Because CTEPH is diagnosed at a median age of 63 years in patients who often have other concomitant cardiovascular disease or lung disease, assessment of pathophysiology in patients can be challenging, We do know that CTEPH is a dual vascular disorder...
July 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27566491/admission-ct-perfusion-may-overestimate-initial-infarct-core-the-ghost-infarct-core-concept
#18
Sandra Boned, Marina Padroni, Marta Rubiera, Alejandro Tomasello, Pilar Coscojuela, Nicolás Romero, Marián Muchada, David Rodríguez-Luna, Alan Flores, Noelia Rodríguez, Jesús Juega, Jorge Pagola, José Alvarez-Sabin, Carlos A Molina, Marc Ribó
BACKGROUND: Identifying infarct core on admission is essential to establish the amount of salvageable tissue and indicate reperfusion therapies. Infarct core is established on CT perfusion (CTP) as the severely hypoperfused area, however the correlation between hypoperfusion and infarct core may be time-dependent as it is not a direct indicator of tissue damage. This study aims to characterize those cases in which the admission core lesion on CTP does not reflect an infarct on follow-up imaging...
August 26, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27565032/indole-3-acetic-acid-photodynamic-therapy-in-the-treatment-of-multiple-actinic-keratoses-a-proof-of-concept-pilot-study
#19
Vieri Grandi, Irene Baldi, Pietro Cappugi, Moira Mori, Nicola Pimpinelli
BACKGROUND: Actinic Keratoses (AK) are considered a form of in situ Squamous Cell Carcinoma (SCC) arising on chronically photoexposed skin. PDT with ALA or MAL is an effective treatment for multiple AK due its high Overall Response Ratio (ORR) but is burdened by important drawbacks: time-consumption, pain and high costs. Indole-3 acetic acid (IAA) is a newly described photosensitizer with proven clinical efficacy on seborrheic dermatitis and acne vulgaris. The aim of the study was to assess efficacy, safety and tolerability of a cycle of IAA-PDT at 0...
August 23, 2016: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/27550338/amelogenesis-imperfecta-review-of-diagnostic-findings-and-treatment-concepts
#20
Martin M I Sabandal, Edgar Schäfer
Mineralization defects like amelogenesis imperfecta are often of hereditary origin. This article reviews the diagnostic findings and summarizes the suggested treatment approaches. Currently, there are no defined therapy recommendations available for patients suffering from amelogenesis imperfecta. The mentioned therapies are more or less equal but no comprehensive therapy recommendation is evident. When treating patients suffering from amelogenesis imperfecta, a comprehensive therapy of almost every dental discipline has to be considered...
September 2016: Odontology
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