Deviations in the composition of alloys -

A recent NIOM study revealed several irregularities in single dental crowns. The PFM or porcelain-fired-on-metal crowns had been ordered from laboratories both within and outside of Norway.

Functional, compositional, and regulatory analyses of imported and non‐imported single dental crowns -

The aim of the study were to investigate functional and esthetic properties, the composition of the alloy, and the content of hazardous elements of single dental crowns with metal skeleton and fired porcelain.

Ion release from three different dental alloys – effect of dynamic loading and toxicity of released elements -

The aims of this in vitro study were to assess if dynamic loading increases the metal ion release of selected dental alloys and to evaluate the cytotoxicity of the released metal ions

A comparison of Norwegian and overseas made dental metallic crowns -

The study revealed major deficiencies for both Norwegian and overseas made crowns regarding conformity between composition and the stated declaration

NIOM welcomes visiting scientists -

Every year we welcome several visiting scientists to NIOM in Oslo. Most come from Scandinavia, and several are return guests.