Kvikksølv og tannhelsepersonell -

Personer i tannhelsen har blitt kvikksølveksponert og fått en påvirkning av nervesystemet under arbeid med amalgam. Dette kan ha ført til klinisk sykdom hos enkelte som har hatt høy eksponering for kvikksølv og/eller er særlig følsomme for kvikksølv, skriver artikkelforfatterne.

Estrogenicity and resin based dental materials -

Dental research has shown that small quantities of BPA and phthalates are eluted from resin-based materials and may be traced in saliva for a short period of time.

Methacrylate monomers lower the level of reduced glutathione and increase the in vitro sensitivity of cells to optical radiation -

Induction of cell death by optical radiation in the wavelength range 350–500 nm was significantly increased by commonly used methacrylate monomers, not mediated by absorption of radiation by the methacrylate monomers, but through a mechanism involving rapid reduction in the level of glutathione

In vitro photosensitization initiated by camphorquinone and phenyl propanedione in dental polymeric materials. -

Documentation is scarce on the photobiological effects of photoinitiators present in dental light curable materials. The aim of this study was to determine cellular effects of the photoinitiators camphorquinone (CQ) and phenyl propanedione (PPD) and to investigate whether these substances produced reactive oxygen species after low and high doses of optical radiation (between 0 and 17J/cm(2)).

Annonsering og tannbehandling -

Annonseringen vil bli mer kompleks og subtil i tiden fremover og vil kreve mer bevisst og kritisk holdning hos tannhelsepersonell.

Mapping of titanium particles in peri-implant oral mucosa by Laser Ablation Inductively Coupled Plasma Mass Spectrometry and high-resolution optical darkfield microscopy -

The combination of LA-ICP-MS and HR-ODM appears to be a powerful combination for detection of particles in oral tissues; optical microscopy provides an overview with histological references, whereas LAICP-MS identifies the chemical composition.

Photokilling of bacteria by curcumin in selected polyethylene glycol 400 (PEG 400) preparations. Studies on curcumin and curcuminoids, XLI. -

Curcumin, bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione, is a yellow-orange pigment which can be synthesised chemically or isolated from the plant Curcuma longa L. Curcumin has a rather broad absorption peak in the range 300-500 nm (maximum approximately 430 nm) and has potential as a photosensitiser for treatment of localised superficial infections in e.g., the mouth or skin.

Formulation and Bacterial Phototoxicity of Curcumin Loaded Alginate Foams for Wound Treatment Applications: Studies on Curcumin and Curcuminoides XLII -

Curcumin loaded alginate foams are proposed for application in antimicrobial photodynamic therapy of infected wounds. The drug loaded foams were formulated to provide a burst release of the photosensitizer when hydrated

DNA damage and DNA damage responses in THP-1 monocytes after exposure to spores of either Stachybotrys chartarum or Aspergillus versicolor or to T-2 toxin. -

Mold spores and their associated mycotoxins have been suggested to be the cause of a variety of human health problems such as asthma and allergic rhinitis related to water-damaged indoor environments. Animal studies have shown that mycotoxins may cause a variety of adverse effects, including acute toxic effects and cancer

Phototoxicity of curcumin loaded alginate foams to Enterococcus faecalis and Escherichia coil in vitro -

Curcumin loaded alginate foams are proposed for application in antimicrobial photodynamic therapy of infected wounds. The drug loaded foams were formulated to provide a burst release of the photosensitizer when hydrated.

Promotion of Adhesion Between Resin and Silica-coated Titanium by Silane Monomers and Formic Acid Catalyst -

Three bifunctional silane coupling agent monomers and their blends with a cross-linking silane were investigated as six experimental adhesion-promoters in vitro. Three organosilane monomers, 3-methacryloxypropyltrimethoxysilane, styrylethyltrimethoxysilane, and 3-(N-allylamino)propyltrimethoxysilane, were prepared as 1% (v/v) primers and also blended with a cross-linking silane, 1,2-bis-(triethoxysilyl)ethane at 0.5% (v/v), in a 95:5 solution of ethanol in deionized water.

Titan för odontologiska applikationer. Biologiska aspekter -

Sammanfattning Titan och titanlegeringar använda i odontologiska sammanhang karaktäriseras av god biokompatibilitet. Detta är väl dokumenterat i laboratorieförsök med celler i kultur, djurförsök och kliniska studier på människa, och förklaras med att alla titanytor är täckta av ett mycket tunt och stabilt oxidskikt. Detta kan ytterligare förbättras med olika former av mekanisk eller kemisk behandling av […]

Elution of substances from a silorane-based dental composite -

Previous studies have shown that residual monomers, initiators, and additives are eluted from methacrylate-based dental composite materials. Recently, a composite material (Filtek Silorane), based on a new resin chemistry, was introduced. The purpose of this study was to investigate substances eluted from Filtek Silorane in water and ethanol.

Responses of the pulp–dentin organ to dental restorative biomaterials. -

Placement of a restorative material in dentin produces the possibility of pulpal injury. In vitro studies have shown that the constituents of dental biomaterials have toxic potentials. In the clinical setting, there may be an immediate reaction of the pulp to, for example, acid etching and to the placement of a bonding agent; however, in most cases the remaining dentin serves as protection against long-term or permanent damage to the pulp.

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