The annual meeting of The Academy of Dental Materials takes place in Nuremberg, Germany from October 5-7.
NIOM scientists develop new etching technique for zirconia ceramics – improves adhesion of resin cements
NIOM scientists have developed a surface etching technique that improves adhesion between resin cement and zirconia. This new method called Melt Etching is based on melting of fluoride compounds, and can be readily adapted by dental technicians.read more
When considering patient safety, the quality and adequate function of a material or device is given by its mechanical strength, chemical stability and biocompatibility. Standards allow for ease of trade, since the product or service is well described, so that the manufacturer and the consumer have a common understanding of its expected performance.read more
Learn the latest within dental adhesive techinques in a webinar we hope you will find both inspirational and useful. NIOM scientist Frode Staxrud, DDS shares with you his do’s and don’t’s of dental bonding procedures. As general practitioner working with patients on...read more
Dental personnel have the potential of being exposed to a variety of chemicals during the working day, many of which may cause temporary or permanent injury. A recent article co-authored by NIOM scientist Jan Tore Samuelsen in “Tandlægebladet” breaks down the risks dental personnel face during their working day in terms of exposure to a variety of chemicals.read more
Hardness is an important mechanical property of dental materials and is defined as the resistance to permanent surface indentation. NIOM has recently acquired a new hardness tester, and the instrument is used in a range of different research projects.read more
The aim of the present study was to investigate the prevalence, distribution and severity of dental erosive wear among 16-year old adolescents living in Troms. Clinical, intra-oral pictures of 392 individuals involved in the «Tromsø undersøkelsen, Fit Futures» were evaluated for dental erosive wear by three previously calibrated examiners.
Effect of curing and silanizing on composite repair bond strength using an improved micro-tensile test method
To evaluate the micro-tensile repair bond strength between aged and new composite, using silane and adhesives that were cured or left uncured when new composite was placed.
Some patients experience adverse reactions to poly(methyl methacrylate)-based (PMMA) dentures. Polyamide (PA) as an alternative to PMMA has, however, not been well documented with regard to water sorption and water solubility. The aim of this in vitro study was to measure water sorption and water solubility of two PA materials compared with PMMA, and to evaluate the major components released from the PA materials and the effect on hardness of the materials.
NIOM has established a programme for the quality evaluation of a number of dental products. The evaluation is based on testing of the products according to methods in relevant ISO and other standards, or according to other well-established and documented test methods. Products fulfilling the set requirements are granted permission to use the NIOM TESTED quality seal. The NIOM TESTED quality seal confirms that the product meets the requirements specified by NIOM.