From the instrument park: The Zwickline test instrument -

Strength and elasticity of materials and of bonding are all important characteristics of dental restorative and prosthetic products. NIOM performs many tests and measurements that involve stretching or compression of test pieces. For polymer-based composite materials or ceramics, these tests will in future be performed on our newly acquired Zwickline 5.0.

NIOM to present at ESB2017 in Athens -

NIOMs Senior Engineers Else Morisbak and Torbjørn Knarvang are participating at the 28th annual conference of the European Society for Biomaterials (ESB) in Athens, Greece.

A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements -

Bonding of zirconia crowns and bridges to abutments is important, not only bonding of the thin resin layer to the abutment, but also bonding to the zirconia ceramic is crucial. Both mechanical and chemical adhesion are desired. Mechanical retention of dental porcelain achieved by etching with moderately concentrated hydrofluoric acid is not possible with zirconia ceramics. The purpose of this study was to show that etching is possible with relative low melting fluoride compounds such as ammonium hydrogen difluoride and potassium hydrogen difluoride.

New monomer in dental composites -

A recent master thesis at NIOM aimed to study the change in the physical and toxic properties of experimental dental composites with varying monomer-composition.

Best Poster Presentation European Conference on Biomaterials 2015 -

MSc Torbjørn Knarvang was awarded the Best Student Poster Presentation at the ESB 2015.