Selected Research2022-12-07T21:30:38+00:00

Effects from exposure to dental amalgam on systemic mercury levels in patients and dental school students

Results: A statistically significant difference was found among dependent groups 1 and 2 (p = 0.0038), whereas mercury levels increased considerably after the first occupational contact of all subjects. Conclusions: Occupational exposure to dental amalgam poses a potential risk of increasing systemic mercury levels, although urine mercury levels in all the sample participants were below the limits of biologic tolerance.

October 1st, 2010|

Blood mercury level and its determinants among dental practitioners in Hamadan, Iran

The mean blood concentration of mercury was 6.3 μg/l (SD=1.31 range 4.15–8.93). BML was positively associated with age, years in practice, working hours per day, number of amalgam restorations per day, number of amalgam removal per week, sea food consumption, working years in present office, using amalgam powder, using diamond bur for amalgam removal, dry sterilization of amalgam contaminated instruments, and deficient air ventilation.

June 1st, 2010|

Air quality in the endodontist’s dental surgery

Amalgam waste storage is done in a leak-proof, plastic container filled with water until disposed according to manufacturer instructions (Nixon and Rowbotham 1971, Mantyla and Wright 1976, Johnson 1978). Habitual amalgamator checks for cracks and mercury leakage is crucial (Langworth et al. 1997, Brown and Sherriff 2002).

January 1st, 2009|

Design and evaluation of a filter-based chairside amalgam separation system

This study evaluated the ability of a chairside filtration system to remove particulate-based mercury (Hg) from dental-unit wastewater. Prototypes of the chairside filtration system were designed and fabricated using reusable filter chambers with disposable filter elements. The system was installed in five dental operatories utilizing filter elements with nominal pore sizes of 50μm, 15μm, 1μm, 0.5μm, or with no system installed (control).

June 1st, 2008|

Changed clinical chemistry pattern in blood after removal of dental amalgam and other metal alloys supported by antioxidant therapy

This study aimed to investigate a possible connection between removal of dental amalgam restorations supported by antioxidant therapy and indicative changes of clinical chemistry parameters. A group of 24 patients, referred for complaints related to amalgam restorations, underwent a removal of their amalgams. All patients were treated with antioxidants (vitamin B-complex, vitamin C, vitamin E, and sodium selenite).

December 1st, 2007|