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Dental mercury

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https://www.readbyqxmd.com/read/28924267/burnout-among-gynaecological-residents-in-lahore-pakistan-a-cross-sectional-survey
#1
Khadija Waheed, Naeem Liaqat, Amna Khanum, Sara Ejaz, Shamila Ijaz, Ambreen Butt, Fawad Ahmed Randhawa, Iffat Naheed, Salman Javed
OBJECTIVE: To determine the prevalence of burnout among gynaecological residents and factors associated with it. METHODS: This cross-sectional study was performed at the University Medical and Dental College, Faisalabad, Pakistan, from March to April 2016, and comprised female medical students. Participants were divided into groups on the basis of their ABO blood groups and on body mass index criteria. Blood groups were determined by simple conventional slide method...
September 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28889024/the-toxicology-of-mercury-current-research-and-emerging-trends
#2
REVIEW
Geir Bjørklund, Maryam Dadar, Joachim Mutter, Jan Aaseth
Mercury (Hg) is a persistent bio-accumulative toxic metal with unique physicochemical properties of public health concern since their natural and anthropogenic diffusions still induce high risk to human and environmental health. The goal of this review was to analyze scientific literature evaluating the role of global concerns over Hg exposure due to human exposure to ingestion of contaminated seafood (methyl-Hg) as well as elemental Hg levels of dental amalgam fillings (metallic Hg), vaccines (ethyl-Hg) and contaminated water and air (Hg chloride)...
November 2017: Environmental Research
https://www.readbyqxmd.com/read/28839293/frequency-of-different-blood-groups-and-its-association-with-bmi-and-blood-pressure-among-the-female-medical-students-of-faisalabad
#3
Shireen Jawed, Sadaf Zia, Sundus Tariq
OBJECTIVE: To determine the frequency of different blood groups among female medical students and to find the association of blood groups and body mass index with blood pressure. METHODS: This cross-sectional study was performed at the University Medical and Dental College, Faisalabad, Pakistan, from March to April 2016, and comprised female medical students. Participants were divided into groups on the basis of their ABO blood groups and on body mass index criteria...
August 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28782290/risk-of-subsequent-attention-deficit-hyperactivity-disorder-among-children-and-adolescents-with-amalgam-restorations-a-nationwide-longitudinal-study
#4
Po-Yen Lin, Jui Wang, Yu-Chih Chiang, Chen-Yin Lai, Hong-Ji Chang, Lin-Yang Chi
OBJECTIVES: Dental amalgam has been used as a common restorative material since the 1800s, but concerns have been raised regarding its purported neuropsychological effects due to the neurotoxicity of mercury. In this study, a nationwide population-based database was employed to investigate the association of dental amalgam restoration with the risk of attention-deficit/hyperactivity disorder (ADHD). METHODS: After matching, 88 068 young people with at least one tooth restoration during 2002-2010 and no ADHD history before 2001 were selected and then collected the further information until the end of 2011...
August 7, 2017: Community Dentistry and Oral Epidemiology
https://www.readbyqxmd.com/read/28734995/senior-oral-and-maxillofacial-surgery-resident-confidence-in-performing-invasive-temporomandibular-joint-procedures
#5
Mohmedvasim Momin, Michael Miloro, Louis G Mercuri, Alexander Munaretto, Michael R Markiewicz
PURPOSE: The purpose of this study was to evaluate the level of confidence that senior-level oral and maxillofacial surgery (OMS) residents have in the management of temporomandibular joint (TMJ) disorders, determine their exposure to various invasive TMJ procedures during training, and assess their confidence in performing those procedures on completion of residency. MATERIALS AND METHODS: A questionnaire was designed, and a link to a University of Illinois at Chicago Qualtrics Survey platform (Qualtrics, Provo, UT) was e-mailed to all program directors at Commission on Dental Accreditation-accredited OMS training programs in the United States...
October 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28727988/environmental-exposures-and-pediatric-kidney-function-and-disease-a-systematic-review
#6
REVIEW
Laura Y Zheng, Alison P Sanders, Jeffrey M Saland, Robert O Wright, Manish Arora
BACKGROUND: Environmental chemical exposures have been implicated in pediatric kidney disease. No appraisal of the available evidence has been conducted on this topic. METHODS: We performed a systematic review of the epidemiologic studies that assessed association of environmental exposures with measures of kidney function and disease in pediatric populations. The search period went through July 2016. RESULTS: We found 50 studies that met the search criteria and were included in this systematic review...
October 2017: Environmental Research
https://www.readbyqxmd.com/read/28718354/mercury-induced-motor-and-sensory-neurotoxicity-systematic-review-of-workers-currently-exposed-to-mercury-vapor
#7
Cheryl A Fields, Jonathan Borak, Elan D Louis
The neurotoxicity of elemental mercury (Hg(0)) is well-recognized, but it is uncertain whether and for how long neurotoxicity persists; among studies that evaluated previously exposed workers, only one examined workers during and also years after exposure ceased. The aim of this review is to document the type, frequency, and dose-relatedness of objective neurological effects in currently exposed mercury workers and thereby provide first approximations of the effects one would have expected in previously exposed workers evaluated during exposure...
July 18, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28711310/acquired-heterotopic-ossification-of-the-temporomandibular-joint
#8
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/28695565/dental-patch-testing-in-patients-with-undifferentiated-oral-lichen-planus
#9
Shevya M Tiwari, Kurt Gebauer, Agnieszka M Frydrych, Sally Burrows
BACKGROUND/OBJECTIVES: Distinguishing between oral lichen planus (LP) and lichenoid reactions to dental restorations can be impossible on clinical and histopathological grounds. Epicutaneous patch testing is an investigation that may guide patients and physicians in making timely and costly decisions to replace or cover existing dental restorations. This study aimed to assess the role of epicutaneous patch testing with a battery of dental allergens in patients with undifferentiated oral LP...
July 11, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28681046/long-term-in-vivo-effect-of-various-restorative-materials-on-enamel-and-dentin-of-primary-molars
#10
Elyiahu Mass, Alla Hassan, Ornit Cohen, Uri Zilberman
OBJECTIVE: To explore the long-term in-vivo effect of different dental restorative materials on the surrounding enamel and dentin, in primary molars. METHOD AND MATERIALS: Sixteen naturally exfoliated primary molars restored with amalgam, compomer, and glass-ionomer cement were collected after 2 to 5 years of function in the mouth. Four intact molars served as control. The teeth were sliced buccolingually and the ion content in the restorative material, the enamel, and the dentin surrounding the restoration was determined using a scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDS) program...
July 4, 2017: Quintessence International
https://www.readbyqxmd.com/read/28642517/green-dentistry-the-art-and-science-of-sustainable-practice
#11
P Mulimani
Dentistry is highly energy and resource intensive with significant environmental impact. Factors inherent in the profession such as enormous electricity demands of electronic dental equipment, voluminous water requirements, environmental effects of biomaterials (before, during and after clinical use), the use of radiation and the generation of hazardous waste involving mercury, lead etc have contributed towards this. With rising temperatures across the world due to global warming, efforts are being made worldwide to mitigate the effects of environmental damage by resorting to sustainability concepts and green solutions in a myriad of ways...
June 23, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28641283/-healing-of-amyotrophic-lateral-sclerosis-a-case-report
#12
Inge Mangelsdorf, Harald Walach, Joachim Mutter
BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a devastating disease leading to death within 3-5 years in most cases. New approaches to treating this disease are needed. Here, we report a successful therapy. CASE REPORT: In a 49-year-old male patient suffering from muscle weakness and fasciculations, progressive muscular atrophy, a variant of ALS, was diagnosed after extensive examinations ruling out other diseases. Due to supposed mercury exposure from residual amalgam, the patient's teeth were restored...
2017: Complementary Medicine Research
https://www.readbyqxmd.com/read/28588813/severe-dermatitis-might-be-caused-by-a-cross-reaction-between-nickel-and-palladium-and-dental-amalgam-resolved-following-removal-of-dental-restorations
#13
Yoshiro Fujii
This report demonstrates a case of atopic dermatitis that was unresponsive to topical steroid therapy. This clinical report highlights the fact that metals used in dental treatment, such as mercury, as well as cross-reactions between nickel and palladium, may cause systemic hypersensitivity or toxicity.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28501064/four-or-more-amalgam-fillings-correlate-with-higher-blood-mercury-levels-in-pregnant-women-but-not-high-enough-to-be-of-health-concern
#14
Stefanie L Russell
ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Dental associations with blood mercury in pregnant women. Golding J, Steer CD, Gregory S, Lowery T, Hibbeln JR, Taylor CM. Community Dent Oral Epidemiol 2016; 44: 216-22. SOURCE OF FUNDING: This study was funded by a combination of government (UK Medical Research Council), foundation/nonprofit (the Welcome Trust) and university (University of Bristol, UK) grants. TYPE OF STUDY/DESIGN: Cross-sectional...
June 2017: Journal of Evidence-based Dental Practice
https://www.readbyqxmd.com/read/28437002/dentists-restorative-decision-making-and-implications-for-an-amalgamless-profession-part-4-clinical-factor
#15
G Alexander, M S Hopcraft, M J Tyas, Rhk Wong
BACKGROUND: The Minamata Convention embodies a worldwide reduction in the production and use of mercury and mercury-containing products and processes, including a phase-down of dental amalgam. This will change the approach to the use of direct restorative materials in the near future. There is little research as to the influence of clinical factors on dentists' decision-making which may be of use when determining the impact of any change. METHODS: An online survey relating to aspects of and attitudes to the use of direct restorative materials was distributed to all dentists who were members of the Australian Dental Association and/or members or fellows of the Royal Australasian College of Dental Surgeons...
April 24, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28379072/biomarkers-of-mercury-toxicity-past-present-and-future-trends
#16
REVIEW
Vasco Branco, Sam Caito, Marcelo Farina, João Teixeira da Rocha, Michael Aschner, Cristina Carvalho
Mercury (Hg) toxicity continues to represent a global health concern. Given that human populations are mostly exposed to low chronic levels of mercurial compounds (methylmercury through fish, mercury vapor from dental amalgams, and ethylmercury from vaccines), the need for more sensitive and refined tools to assess the effects and/or susceptibility to adverse metal-mediated health risks remains. Traditional biomarkers, such as hair or blood Hg levels, are practical and provide a reliable measure of exposure, but given intra-population variability, it is difficult to establish accurate cause-effect relationships...
2017: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/28344835/a-review-of-mercury-exposure-and-health-of-dental-personnel
#17
REVIEW
Natasha Nagpal, Silvana S Bettiol, Amy Isham, Ha Hoang, Leonard A Crocombe
Considerable effort has been made to address the issue of occupational health and environmental exposure to mercury. This review reports on the current literature of mercury exposure and health impacts on dental personnel. Citations were searched using four comprehensive electronic databases for articles published between 2002 and 2015. All original articles that evaluated an association between the use of dental amalgam and occupational mercury exposure in dental personnel were included. Fifteen publications from nine different countries met the selection criteria...
March 2017: Safety and Health At Work
https://www.readbyqxmd.com/read/28281590/bulk-fill-resin-based-composite-restorative-materials-a-review
#18
J Chesterman, A Jowett, A Gallacher, P Nixon
Resin-based composite (RBC) materials are increasingly being used for the restoration of posterior teeth. The increasing demand for aesthetic, tooth-coloured restorations coupled with the patient's concerns regarding the use of mercury containing restorations, has driven a surge in the use of RBC materials. With the Minamata Convention in 2013 calling for the phase-out of dental amalgam and dental schools increasingly teaching techniques for RBC restorations in posterior teeth, it is likely that the dental profession's reliance upon RBC for the restoration of posterior teeth will only increase...
March 10, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28236437/biocompatibility-of-biomaterials-lessons-learned-and-considerations-for-the-design-of-novel-materials
#19
REVIEW
Gottfried Schmalz, Kerstin M Galler
OBJECTIVES: Biocompatibility of dental materials has gained increasing interest during recent decades. Meanwhile, legal regulations and standard test procedures are available to evaluate biocompatibility. Herein, these developments will be exemplarily outlined and some considerations for the development of novel materials will be provided. METHODS: Different aspects including test selection, release of substances, barriers, tissue healing, antibacterial substances, nanoparticles and environmental aspects will be covered...
April 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28220332/increased-mercury-emissions-from-modern-dental-amalgams
#20
Ulf G Bengtsson, Lars D Hylander
All types of dental amalgams contain mercury, which partly is emitted as mercury vapor. All types of dental amalgams corrode after being placed in the oral cavity. Modern high copper amalgams exhibit two new traits of increased instability. Firstly, when subjected to wear/polishing, droplets rich in mercury are formed on the surface, showing that mercury is not being strongly bonded to the base or alloy metals. Secondly, high copper amalgams emit substantially larger amounts of mercury vapor than the low copper amalgams used before the 1970s...
April 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
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