Autoradiographic study of distribution patterns of metals which occur as corrosion products from dental restorations

Söremark, Rune; Diab, M. M. El-Hady; Arvidson, Kristina

doi:10.1111/j.1600-0722.1979.tb00707.x

Cited by 9 publications

(12 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The novel finding of this study was that we obtained unequivocal evidence that there were larger deposits of cobalt locally in the mineralized bone tissue surrounding joint implants than elsewhere in the skeleton. Other authors performed animal experiments and reported similar findings 37–39. However, a separate demonstration of the mineralized and nonmineralized bone tissue was not conducted in these studies.…”

Section: Discussionmentioning

confidence: 68%

Allocation of nonbirefringent wear debris: Darkfield illumination associated with PIXE microanalysis reveals cobalt deposition in mineralized bone matrix adjacent to CoCr implants

Busse

Hahn

Niecke

et al. 2008

J Biomedical Materials Res

View full text Add to dashboard Cite

Abrasive joint replacement material that accumulates in the tissue induces reciprocal effects between prosthesis material and organism. Since the limitations of brightfield and polarized light microscopy for foreign body analysis are well known, a method was applied that ensures the detailed histological assessment of nonbirefringent particles in periprosthetic soft and hard tissue. Cemented and cementless interface regions of five selected autopsy hip implant cases (2 x Endo-Modell Mark III, LINK, 1 x St. Georg Mark II, LINK, Germany; 2 x Spongiosa Metal II, ESKA, Germany) were viewed under darkfield illumination and subsequently analyzed with proton-induced X-ray emission (PIXE). Eight autopsy cases without implants served as controls. Using darkfield illumination technique, metallic particles became visible as luminous points under the microscope. The majority of particles in the samples from the cemented cases were degradation products of radiopaque bone cement. There was minimal evidence of metallic alloy particles in the soft tissues. However, a considerable quantity of heavy metal cobalt (Co) was found in the periprosthetic mineralized bone tissue, which was not observed in the controls. The periprosthetic concentration of cobalt ranged from 38 to 413 ppm. The findings demonstrate a correlation between cobalt concentration, time since implantation, and distance from the implant. Darkfield microscopy associated with PIXE enables a detailed histological assessment of metal particles in the tissue. In an effort to optimize biomechanics, implant design and implantation techniques, the contamination of soft and hard tissue with heavy metal degradation products deserves similar attention in terms of alloy assortment.

show abstract

Section: Discussionmentioning

confidence: 68%

Allocation of nonbirefringent wear debris: Darkfield illumination associated with PIXE microanalysis reveals cobalt deposition in mineralized bone matrix adjacent to CoCr implants

Busse

Hahn

Niecke

et al. 2008

J Biomedical Materials Res

View full text Add to dashboard Cite

show abstract

“…Clinically, subjective discomfort has also been reported (7,8). It has been proposed that different compounds released from dental restorations into the saliva can reach adjacent target tissues or interfere with different biochemical reactions in the body via the blood and the lymphatic systems (9,10). Recently,BRUNE et al (11) demonstrated in rats that different compounds of various amalgams could be transferred to the blood system after gastrointestinal administration and accumulate in kidney, liver and lung tissues.…”

mentioning

confidence: 99%

“…Recently,BRUNE et al (11) demonstrated in rats that different compounds of various amalgams could be transferred to the blood system after gastrointestinal administration and accumulate in kidney, liver and lung tissues. The risk for accumtilation of products from dental restorative materials has been discussed in detail elsewhere (9).…”

mentioning

confidence: 99%

Galvanic currents between dental alloys in vitro

Arvidson

Johansson

1985

European J Oral Sciences

Self Cite

View full text Add to dashboard Cite

– The galvanic current densities between gold, amalgam and cobalt‐chromium, three different classes of dental alloys, were determined in vitro in artificial saliva kept at 35°C. The maximum current density of 200 μA/drn2was obtained between the conventional amalgam and a type III gold alloy. Galvanic currents of lesser magnitude could also be measured between amalgams high in copper and the other alloys. No measurable current densities were obtained between gold alloys and between gold and cobalt‐chromium alloy with the exception of a casting and a solder gold alloy commonly used in combination.

show abstract

“…The distribution of elements released from dental alloys into the environmental tissues, target organs and surrounding fluids and air has been investigated (e.g. [9][10][11][12][13][14][15][16][17][18][19][20][21]. Among the different release mechanisms, various corrosion processes have received a great deal of attention.…”

mentioning

confidence: 99%

Tin and copper release related to charge transfer between short‐circuited amalgam and gold alloy electrodes

Johansson

1986

European J Oral Sciences

View full text Add to dashboard Cite

Johansson BI: Tin and copper release related to charge transfer between short-circuited amalgam and gold alloy electrodes. ScandJ Dent Res 1986; 94: 259-66.Abstract -Short-circuited electrodes of dental amalgams and a gold alloy were used in an attempt to study a possible relationship between the quantity of copper and tin ions released into an electrolyte and the charge transferred between the electrodes. It was found that tinder the experimental conditions used the quantity of tin ions released was related to the charge transferred between the conventional amalgam and the gold alloy. The same tendency vvas found using a saliva sample which confined and collected the released tin ions into a small volume when the conventional amalgam specimen was short-circuited to the gold alloy specimen in vivo.

show abstract

Autoradiographic study of distribution patterns of metals which occur as corrosion products from dental restorations

Cited by 9 publications

References 18 publications

Allocation of nonbirefringent wear debris: Darkfield illumination associated with PIXE microanalysis reveals cobalt deposition in mineralized bone matrix adjacent to CoCr implants

Allocation of nonbirefringent wear debris: Darkfield illumination associated with PIXE microanalysis reveals cobalt deposition in mineralized bone matrix adjacent to CoCr implants

Galvanic currents between dental alloys in vitro

Tin and copper release related to charge transfer between short‐circuited amalgam and gold alloy electrodes

Contact Info

Product

Resources

About