Sammendrag av doktorgradsavhandling: «Toxicity of resin based dental restorative materials in vitro» -

Artikkelens hensikt er å belyse toksisiteten av utvalgte metakrylatmonomerer i modeller som kan relateres til cellulære mål in vivo. En cellelinje med opphav fra spyttkjertel-epitel og primære epiltelceller fra rottelunge ble valgt som relevante modellsystemer. Monomerene 2- hydroxyetylmetakrylat (HEMA) og trietylenglykoldimetakrylat (TEGDMA) er to metakrylater som er mye brukt i resinbaserte tannbehandlingsmaterialer, og cellekulturene ble eksponert for disse i varierende konsentrasjon og varighet.

Acidity and titrable acidity of different soft drinks and beverages in Norway -

The potential erosive effect on teeth from different drinks is sometimes presented by the simple initial pH. Such measurements do not however, reveal the buffer capacity of the soft drinks and beverages, i.e their capacity to maintain a low pH in presence of neutralizing factors. The goals of this experiment were to measure initial pH and calculate the titrable acidity (TA) of 21 different drinks.

Biotransformation enzymes and lung cell response to 2-hydroxyethyl-methacrylate. -

The aim of this in vitro study was to investigate possible involvement of cytochrome P450 (CYP) enzymes in modifying the toxic potential of 2-hydroxyethyl-methacrylate (HEMA). Primary cultures of CYP expressing rat alveolar type 2 cells were exposed to varying concentrations of HEMA. Nuclear translocation of aryl hydrocarbon receptor (AhR) after HEMA exposure (100 μM) was demonstrated by immunocytochemical staining.

Dual-cured luting materials tested -

Dual-cured luting materials tested according to some of the requirements in “Dentistry – Polymer-based restorative materials”.
Measurements were performed at NIOM according to ISO 4049:2009. Twelve materials were tested with two shades (if available). The data were collected from 2009 to 2010.

Skadelig innhold i skyllevæske og tannkremer? -

Det er kommet spørsmål fra en tannlege som er bekymret over manglende informasjon om innholdet av ulike mulig helseskadelige stoffer i fluor skyllevæske og tannkremer. Dette er et betimelig spørsmål.

Oral cancer, dental biomaterials, and inflammation -

The present paper discusses the potential role of dental biomaterials and inflammatory processes in gingival carcinogenesis. Parallel questions are associated with orthopedic implants that sometimes initiate malignant mesenchymal tumors like sarcomas.