Illogical dental amalgam policy by WHO and UNEP
نویسندگان
چکیده
منابع مشابه
Managed care policy regarding OMT reimbursement illogical.
To the Editor: I am writing out of frustration over the lack of respect that the current healthcare system has for osteopathic physicians. I am currently in the middle of a drawn-out battle with two health management organizations (HMOs) over the issue of reimbursement for osteopathic manipulative treatment (OMT). One of the HMOs has contracted with a chiropractic organization to be the sole pr...
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The wear of cental amalgam was studied by single- and double-pass sliding and by a silicon carbide abrasion test. A dispersed amalgam showed significantly better resistance to two-body abrasion than the spherical amalgams tested. The wear amalgam was determined by resistance to penetration and by a ductile mode of surface failure over the load range studied. Differences in the wear of amalgam a...
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Numerous studies have been done in the past to identify the phases present in dental amalgam. Both metallographic and X-ray diffraction techniques have been used.-' Most researchers now presume that dental amalgam consists mainly of three phases. The original particle is an alloy of Ag, Sn, Cu, and sometimes Zn; the major portion is the compound Ag3Sn, which is often referred to as Py. After am...
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Increasing knowledge about the risk of toxic effects caused by anthropogenic mercury accumulation in ecosystems has resulted in a growing pressure for reduction of the discharge of mercury waste. Consequently, the mercury waste problems of dental clinics have been given increased attention, and restrictions on handling and discharge of contaminated waste have been established in several countri...
متن کاملViscoelastic Behavior of Dental Amalgam *
Measure ments made on dent a l a malgam in tens ion indica te th at a malga m exhib its three types of vi scoelasti c phe nome na: (1) inst antaneous e las ti c s tra in , (2) re ta rded e las ti c st ra in (transie nt c reep), and (3) viscous s train (s teady state c reep). T he co mbina tion of e lasti c plus re ta rded strain can be repre· sent ed by a n eq uation of the form f = A(T + 8 '(J...
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ژورنال
عنوان ژورنال: British Dental Journal
سال: 2019
ISSN: 0007-0610,1476-5373
DOI: 10.1038/s41415-019-0038-8