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https://www.readbyqxmd.com/read/29780732/effect-of-fixed-metallic-oral-appliances-on-oral-health
#1
REVIEW
Ahmad Alnazzawi
There is a substantial proportion of the population using fixed metallic oral appliances, such as crowns and bridges, which are composed of various dental alloys. These restorations may be associated with a number of effects on oral health with variable degrees of severity, to review potential effects of using fixed metallic oral appliances, fabricated from various alloys. The MEDLINE/PubMed database was searched using certain combinations of keywords related to the topic. The search revealed that burning mouth syndrome, oral pigmentation, hypersensitivity and lichenoid reactions, and genotoxic and cytotoxic effects are the major potential oral health changes associated with fixed prosthodontic appliances...
March 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29698360/piercing-metal-contact-allergy-nothing-gold-can-stay
#2
Calvin T Sung, Brian C Machler, Sharon E Jacob
No abstract text is available yet for this article.
April 25, 2018: Dermatitis
https://www.readbyqxmd.com/read/29692459/common-contact-allergens-in-patients-with-palmoplantar-and-scalp-psoriasis-and-impact-of-their-avoidance-on-dermatology-life-quality-index-a-hospital-based-study
#3
Farhan Rasool, Saniya Akhtar, Iffat Hassan, Sumaya Zeerak, Syed Mubashir, Gousia Sheikh
Background: Scalp psoriasis and psoriasis limited to palms and/or soles have been referred to as difficult to control psoriasis. Contact allergy has long been suspected to aggravate existing lesions and cause resistance to therapy in these psoriasis variants. Objectives: The objective of the study was to assess common contact allergens in patients with palmoplantar and scalp psoriasis and the impact of their avoidance on dermatology life quality index (DLQI). Materials and Methods: A total of 54 patients with palmoplantar and scalp psoriasis were patch tested with Indian Standard Series...
March 2018: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/29684517/nickel-related-adverse-reactions-in-the-treatment-of-cerebral-aneurysms-a-literature-review
#4
REVIEW
Anderson Chun On Tsang, Patrick Nicholson, Vitor Mendes Pereira
BACKGROUND: Nickel is the most common metal allergen and predominantly affects women. It is also the ubiquitous component in the alloys used to manufacture intracranial devices for aneurysm treatments, including aneurysm clips, self-expanding stents, flow-diverting stents and endosaccular occlusion devices. Adverse events related to nickel-allergy after deployment of such devices are uncommon but can be severe, resulting in dilemmas in the choice of treatment strategies and devices in managing nickel-sensitive patients with intracranial aneurysms...
April 20, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29681595/remission-of-palmoplantar-pustulosis-after-on-pump-coronary-artery-bypass-grafting-in-a-patient-with-titanium-allergy
#5
Takanori Kono, Takeshi Oda, Keiichi Akaiwa, Katsuhiko Nakamura, Kenya Sasaoka, Hiroyuki Tanaka
Metal allergy is an uncommon problem during surgery. Among them, titanium allergy is said to be rare, but can lead to serious complications, such as palmoplantar pustulosis (PPP). A 69-year-old woman was admitted to our hospital with a chief complaint of chest pain. Coronary angiography showed severe coronary artery disease that required coronary artery bypass grafting (CABG). The patient had a history of orthopedic surgery for left distal radius fracture 2 years previously, which resulted in inflammation on the left arm and PPP...
April 20, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29673741/cross-sectional-observational-study-exploring-clinical-risk-of-titanium-allergy-caused-by-dental-implants
#6
Maki Hosoki, Keisuke Nishigawa, Toyoko Tajima, Mayu Ueda, Yoshizo Matsuka
PURPOSE: Studies have reported cases of metal allergy caused by titanium-containing materials. We wished to clarify the relationship between titanium allergy and dental implants by describing patients who suffered allergic symptoms after they had received such implants. METHODS: A total of 270 patients who visited a Dental Metal Allergy Clinic at Tokushima University Hospital from April 2010 to March 2014 were the study cohort. Patch testing with 28 types of metal allergens (including four titanium allergens) was undertaken for patients...
April 16, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29661104/effect-of-micro-roughening-of-poly-ether-ether-ketone-on-bone-marrow-derived-stem-cell-and-macrophage-responses-and-osseointegration
#7
Sunarso, Akira Tsuchiya, Naoyuki Fukuda, Riki Toita, Kanji Tsuru, Kunio Ishikawa
Poly(ether ether ketone) (PEEK) has emerged as a candidate to replace metal implants because of its satisfactory mechanical properties, radiolucency, and lack of metal allergy. However, PEEK lacks osseointegration ability limiting its clinical applications. To overcome this problem, we prepared PEEK with a micro-rough surface using the sandblast method to modulate its osseointegration property; the sandblast method is simple, cost-effective, and is already applied to clinical metal implants. The surface roughness of the sandblasted PEEK was about 2...
April 16, 2018: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/29652237/failure-of-facet-replacement-system-with-metal-on-metal-bearing-surface-and-subsequent-discovery-of-cobalt-allergy-report-of-2-cases
#8
Matthew L Goodwin, William Ryan Spiker, Darrel S Brodke, Brandon D Lawrence
The aim of this study was to report on 2 patients in whom metal-on-metal (MOM) facet replacements failed, with subsequent positive findings on allergy testing. Motion-preserving devices have been used with limited success when instrumentation is indicated in the mobile spine. MOM-bearing surfaces in orthopedics were developed to increase implant longevity, yet have been associated with numerous adverse outcomes, including local tissue reactions, pseudotumors, metallosis, and the need for revision surgery. Five patients with spinal stenosis and low-grade spondylolisthesis were randomized to undergo facet replacement surgery with the ACADIA facet replacement system at the authors' institution...
April 13, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29572857/comparison-of-reactivity-to-a-metallic-disc-and-2-aluminium-salt-in-366-children-and-reproducibility-over-time-for-241-young-adults-with-childhood-vaccine-related-aluminium-contact-allergy
#9
Anette Gente Lidholm, Annica Inerot, Martin Gillstedt, Elisabet Bergfors, Birger Trollfors
BACKGROUND: An aluminium hydroxide-adsorbed pertussis toxoid vaccine was studied in 76 000 children in the 1990s in Gothenburg, Sweden. Long-lasting itchy subcutaneous nodules at the vaccination site were seen in 745 participants. Of 495 children with itchy nodules who were patch tested for aluminium allergy, 377 were positive. In 2007-2008, 241 of the positive children were retested. Only in 1 of 3 were earlier positive results reproduced. OBJECTIVES: To further describe patch test reactions to different aluminium compounds in children with vaccine-induced aluminium allergy...
March 24, 2018: Contact Dermatitis
https://www.readbyqxmd.com/read/29525894/surgical-correction-of-pectus-excavatum-by-the-nuss-procedure-a-15-year-experience-study
#10
Piotr Cierpikowski, Adam Rzechonek, Piotr Błasiak, Hanna Lisowska, Grzegorz Pniewski, Patric Le Pivert
Pectus excavatum is the most common congenital deformity of the chest. The Nuss procedure is minimally invasive surgical correction of this defect, using retrosternal metal bars. The purpose of the present study was to describe a 15-year experience with the Nuss surgery, and to evaluate the long-term clinical results of the procedure. We retrospectively evaluated 239 patients, aged 14-34, who underwent the Nuss surgery in the years 2002-2016. Postoperative complications were observed in 40/236 (16.9%) patients...
March 11, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29521974/laser-induced-breakdown-spectroscopy-based-detection-of-metal-particles-released-into-the-air-during-combustion-of-solid-propellants
#11
Morgan O'Neil, Nicholas A Niemiec, Andrew R Demko, Eric L Petersen, Waruna D Kulatilaka
Numerous metals and metal compounds are often added to propellants and explosives to tailor their properties such as heat release rate and specific impulse. When these materials combust, these metals can be released into the air, causing adverse health effects such as pulmonary and cardiovascular disease, particulate-matter-induced allergies, and cancer. Hence, robust, field-deployable methods are needed to detect and quantify these suspended metallic particles in air, identify their sources, and develop mitigation strategies...
March 10, 2018: Applied Optics
https://www.readbyqxmd.com/read/29509686/the-role-of-oral-cavity-biofilm-on-metallic-biomaterial-surface-destruction-corrosion-and-friction-aspects
#12
REVIEW
Joanna Mystkowska, Katarzyna Niemirowicz-Laskowska, Dawid Łysik, Grażyna Tokajuk, Jan R Dąbrowski, Robert Bucki
Metallic biomaterials in the oral cavity are exposed to many factors such as saliva, bacterial microflora, food, temperature fluctuations, and mechanical forces. Extreme conditions present in the oral cavity affect biomaterial exploitation and significantly reduce its biofunctionality, limiting the time of exploitation stability. We mainly refer to friction, corrosion, and biocorrosion processes. Saliva plays an important role and is responsible for lubrication and biofilm formation as a transporter of nutrients for microorganisms...
March 6, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29481324/a-randomized-controlled-clinical-study-to-assess-the-effect-of-anodal-and-cathodal-electrical-stimulation-on-periwound-skin-blood-flow-and-pressure-ulcer-size-reduction-in-persons-with-neurological-injuries
#13
Anna Polak, Cezary Kucio, Luther C Kloth, Malgorzata Paczula, Ewa Hordynska, Tomasz Ickowicz, Edward Blaszczak, Ewa Kucio, Krystian Oleszczyk, Krzysztof Ficek, Andrzej Franek
The use of electrical stimulation (ES) should be considered for treating nonhealing pressure ulcers (PUs), but optimal ES wound treatment protocols have yet to be established. A randomized, controlled, double-blind clinical study was conducted to evaluate the effects of cathodal and anodal high-voltage monophasic pulsed current (HVMPC) on periwound skin blood flow (PSBF) and size reduction of Stage 2 to Stage 4 PUs of at least 4 weeks' duration. Persons >18 years of age, hospitalized with neurological injuries, at high risk for PU development (Norton scale <14 points; Waterlow scale >15 points), and with at least 1 Stage 2 to Stage 4 PU were eligible to participate in the study...
February 2018: Ostomy/wound Management
https://www.readbyqxmd.com/read/29478068/fistula-cannulation-with-a-novel-fistula-cannula-a-review-of-cannulation-devices-and-procedures
#14
Federico Nalesso, Francesco Garzotto, Eva Muraro, Alessandra Brendolan, Claudio Ronco
Arteriovenous fistula cannulation for dialysis treatments in Europe has traditionally been done by metal needles. In -Japan, plastic cannulas have been available for many years and are used in the majority of the dialysis patients. The mechanical structure and the cannulation procedure of the plastic cannulas differ from those of the metal needles. These differences are particularly beneficial for patients with delicate fistulas, tortuous vessels, metal allergies, oligophrenic patients, and also for the safety of the medical staff...
2018: Blood Purification
https://www.readbyqxmd.com/read/29463932/cell-based-biological-pacemakers-progress-and-problems
#15
REVIEW
Yukihiro Saito, Kazufumi Nakamura, Hiroshi Ito
The number of permanent pacemaker implantations has been increasing due to the aging of populations worldwide and the increase in the numbers of patients with heart diseases. Commercially available mechanical pacemakers are very useful but still have some problems including short battery life, a risk of infection, the absence of physiological autonomic responsiveness, metal allergy, and electronic interference. A biological pacemaker may resolve these problems and regenerate the cardiac pacemaker. Cell-based therapy and gene therapy have been addressed with the goal of solving the challenges of biological pacemaker...
February 2018: Acta Medica Okayama
https://www.readbyqxmd.com/read/29443350/coronary-stent-restenosis-and-the-association-with-allergy-to-metal-content-of-316l-stainless-steel
#16
D Slodownik, C Danenberg, D Merkin, F Swaid, S Moshe, A Ingber, H Lotan, R Durst
BACKGROUND: Most intra-coronary stents in use are made of 316 L stainless steel, which contains nickel, chromate and molybdenum. Whether inflammatory and allergic reactions to metals contribute to in-stent restenosis is still a matter of debate. AIM: The aim of this study was to ascertain the relationship between metal allergy and the occurrence of in-stent restenosis. METHODS: Ninety-nine adult patients who underwent two cardiac catheterisations, up to two years apart, were included in the study...
January 2018: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29377297/patch-testing-in-facial-dermatitis-using-chinese-baseline-series-60-allergens-and-cosmetic-series-58-allergens
#17
LETTER
F Peng, Z Mu, C He, C Xue, W Li, Q Wang, Z Chen, J Zhang
No abstract text is available yet for this article.
January 29, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29351933/vanadium-allergy-following-total-knee-arthroplasty
#18
Fidel Peat, Ross Coomber, Adnan Rana, Alastair Vince
Allergic reactions to metals following joint arthroplasty represent a rare and poorly understood phenomenon. Much is still unknown regarding the natural history of this complication, and how it can best be prevented and managed. We present a case of a 68-year-old woman who underwent a left total knee arthroplasty for treatment of osteoarthritis. After an initial uneventful postoperative course, she developed a troublesome erythematous rash both around the incision site and over her trunk. Blood testing revealed no evidence of infection and clinically her prosthesis was functioning well...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29284253/risk-factors-for-work-related-eczema-and-urticaria-among-vocational-students-of-agriculture
#19
Radosław Śpiewak, Anna Góra-Florek, Andrzej Horoch, Mirosław J Jarosz, Agnieszka Doryńska, Marcin Golec, Jacek Dutkiewicz
INTRODUCTION AND OBJECTIVE: Farmers are at high risk of occupational skin diseases which may start already during vocational training. This study was aimed at identification of risk factors for work-related skin diseases among vocational students of agriculture. MATERIAL AND METHODS: The study involved 440 students (245 males, 195 females aged 17-21 years) in 11 vocational schools which were at least 100 km from each other. The protocol included a physician-managed questionnaire and medical examination, skin prick tests, patch tests, total IgE and Phadiatop...
December 23, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/29258692/fabrication-of-a-nonmetal-clasp-denture-supported-by-an-intraoral-scanner-and-cad-cam
#20
Ippei Hamanaka, Kota Isshi, Yutaka Takahashi
This clinical report describes the management of a patient who had a metal allergy and had difficulty sitting in a dental chair for an extended period. The presented treatment used an intraoral scanner and computer-aided design and computer-aided manufacturing (CAD-CAM) to fabricate a nonmetal clasp denture. The described procedure may reduce patient discomfort and chair-time.
December 16, 2017: Journal of Prosthetic Dentistry
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