NEWS
NIOM turns 50!
NIOM, The Nordic Institute of Dental Materials, celebrates its 50th anniversary on Thursday the 12th of May. The institute marks the occasion with a seminar led by the renowned Christine Calvert, with lectures by philosopher Henrik Syse, as well as dental researchers from across the Nordics.
Staxrud in Antalya
This week, NIOMs Frode Staxrud, will participate in the European Federation of Conservative Dentistry, the EFCDs meeting in Antalya, Turkey. Staxrud will speak on the subject of minimally invasive dentistry, when and how a dentist might intervene.
New guest researchers at NIOM
NIOM has welcomed five new visiting scientists this fall. They are; Wedad Hammoudi from Sweden, Sigfus Eliasson from Iceland, and from Norway, Sunita Sharma, Amela Tulek, and Anneli Skjold. Hammoudi and Skjold are working with different aspects like esthetics and...
NEWSLETTERS
Wear on and inside implants
Wear on the different parts of a dental implant, can cause particle release as well as shorten the lifetime of the implant. A recently published study at NIOM in collaboration with the University of Gothenburg looked at particle release from dental implants in saliva during dynamic loading.
Forensic identification of deceased persons with no dental restorations?
Since 1984, Interpol has used three primary identifiers to establish the identity of a deceased person. The identifiers are fingerprint analysis, DNA analysis and comparative dental analysis. While fingerprinting is mostly the same, DNA-analysis has improved and dental analysis has become more complex.
3D printing in odontology
Those who were able to attend the last IDF trade fair in Cologne, the year before the pandemic, saw 3D printers everywhere. There has been a steady growth in the use of 3D printing to produce resin-based appliances. In order to clarify the various 3D methods, NIOM’s Ida Stenhagen has written a review article.
Season greetings from NIOM
As another year marked by covid is ending, we look back at 12 months of progress and growth. We have three new hires, and 17 published papers. NIOM is steaming ahead towards its 50th anniversary in May 2022. An institute founded on the idea that the Nordic countries...
Medical devices in dentistry – the new MDR regulation
The new regulation for Medical Devices (MDR 2017/745) came into full force from May 26th 2021. Materials already approved in accordance with the old directive can continue to be purchased until 2025.
When to intervene in the caries process?
NIOMs Frode Staxrud, DDS, Ph.D., has a new article out, in which he makes recommendations on when to intervene in the caries process for both new and existing caries lesions. He classifies treatments into three intervention levels: non-invasive, micro-invasive , and invasive or restorative strategies.
PUBLICATIONS
Sintering temperature accuracy and its effect on translucent yttria-stabilized zirconia: Flexural strength, crystal structure, tetragonality and light transmission
The aim of this study was to investigate how lower and higher sintering temperature deviations in dental furnaces compared to the recommended firing protocols affected certain material properties of different translucency, chemical composition and recommended sintering temperatures, under the null hypothesis that there will not be any differences in properties investigated between the studied groups.
Protein-coated nanostructured surfaces affect the adhesion of Escherichia coli
Nanotopography influences on bacterial adhesion were investigated with surfaces with controlled interspatial nanopillars distances. Surfaces were coated with proteins (fibrinogen, collagen, serum and saliva) prior to E. coli adhesion under flow conditions. PiFM provided chemical mapping and showed that proteins adsorbed both between and onto the nanopillars with a preference to areas between the nanopillars. E. coli adhered least to protein-coated areas with low surface nanopillar coverage, most to surfaces coated with saliva, while human serum led to the lowest adhesion. Protein-coated nanostructured surfaces affected the adhesion of E. coli.
Wear particle release at the interface of dental implant components: Effects of different material combinations. An in vitro study
The objective of this study was to evaluate the effect of combining implant and abutment materials on wear and particle release in a dynamical loading setup.
LABORATORIES
NIOM TESTED
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.