OBJECTIVES The purpose of this study was to evaluate treatment of patients suffering from chronic ill health with a multitude of symptoms associated with metal exposure from dental amalgam and other metal alloys. SETTING AND DESIGN We included 796 patients in a retrospective study using a questionnaire about symptom changes, changes in quality of life as a consequence of treatment and assessm...

The Food and Drug Administration (FDA) is proposing three actions that will provide consistent regulation of dental mercury and dental amalgam products. FDA is proposing to issue a separate classification regulation for encapsulated amalgam alloy and dental mercury, a preamendments device, intended to be mixed in a singleuse capsule to form filling material for the treatment of dental caries as...

OBJECTIVE We aimed to investigate whether the Prognos device might be a useful tool in the diagnosis of disorders suspected to be due to dental amalgam fillings. PARTICIPANTS AND METHODS A diagnostic case-control study was performed in 27 patients who complained about health problems attributed to amalgam (cases), 27 healthy volunteers with amalgam fillings (controls I), and 27 healthy amalga...

A 10-question survey was mailed to the 10 Canadian faculties of dentistry to determine current approaches to teaching undergraduates about silver amalgam and resin composite for posterior restorations in adults and children. Responses were received from all 10 pedodontic programs and from 8 of the 10 operative and restorative programs. The use of silver amalgam and posterior composite for resto...

The objective of this study was to assess the occupational exposure to mercury in dentistry and associated environmental emission in wastewater of Lahore, Pakistan. A total of ninety-eight blood samples were collected comprising 37 dentists, 31 dental assistants, and 30 controls. Results demonstrate that the dentistry personnel contained significantly higher mean concentration of mercury in the...

Aim The study evaluated the antibacterial effects of dental restorations such as nano-hybrid composite (Empress), a glass ionomer cement (GIC Gold label Type 9) and silver amalgam against Streptococcus mutans. Materials and Methods A modified bacterial suspension within the material assay was used to study the antibacterial effects. A volume of 20 μl of bacterial suspensions were placed in a ...

Sect. 2. Bacterial mercury transformations Certain bacteria that colonize the human gastrointestinal (GI) tract can methylate inorganic mercury to form methylmercury, CH3Hg(I). Other bacteria that also colonize gut ecosystem can reduce mercuric ion, Hg(II), to monoatomic elemental mercury, Hg(0), a form which readily diffuses across the body's membranes into circulation. The genes for the latte...

DENTAL amalgams constitute a most important and very high proportion of individual tooth restorations. The physical properties of finished amalgams, upon which the restorations depend for satisfactory service, vary with the alloy formulas, manufacturing methods, mixing procedures, and condensation technics. Previous studies of amalgams have established the effects of many variables and the Amer...

In the 1st phase of this study, thirty patients were investigated. Five milliliter stimulated saliva was collected just before and after MRI. The magnetic flux density was 0.23 T and the duration of exposure of patients to magnetic field was 30 minutes. In the 2nd phase, fourteen female healthy University students who had not used mobile phones before the study and did not have any previous ama...