WELCOME TO NIOM
Nordic Institute of Dental Materials (NIOM) works to ensure that dental biomaterials are safe and effective. We undertake research, participate in standardization and provide clinical relevant advice to the dental health services and health authorities in the Nordic countries. NIOM offers research-based consultancy and accredited testing according to international standards. Our independent test laboratory delivers accurate and independent data accepted for third-party evaluations of dental materials and instruments.
NEWS
”Stay Ahead” with NIOM at Årskurus and Scandefa 2018
NIOM will represent with both participants at this year’s Årskursus and a stand at Scandefa 2018 in Copenhagen, April 12th to 14th.
NIOM to present at Society of Toxicology 57th Annual Meeting and ToxExpo
NIOM Senior Scientist Jan Tore Samuelsen is currently representing NIOM at the 57th Annual Meeting and at ToxExpo being held in San Antonio, Texas. The meeting is taking place from March 11 to 15, 2018, The meeting and its exhibition bring together 350...
Holmenkollen symposium 2018
A short report from “Holmenkollen symposium 2018”.
NEWSLETTERS
Restorative materials for severely affected primary molars
Reduced follow-ups and increased cost effectiveness were best obtained using preformed metal crowns (PMCs) in children with severely affected primary molars at high caries risk. This is the conclusion of a collaboration study between the City of Helsinki and NIOM.
read moreBe proactive: pointers for safe and effective physical protection in the clinic
There is no doubt that the most serious health risk to dental staff is due to infection by microorganisms such as viruses and bacteria. In addition there are other hazards that pose a health risk and require physical protection.
read moreGap settings matters
In a recent investigation from University of Oslo and NIOM, none of the three-unit bridges produced with different CAD/CAM systems attained the nominal settings for the cementation gap. The measured gaps were up to twice the sizes set in the CAD-software.
read moreNIOM adds Shore hardness and bond strength characterization to its test repertoire
NIOM has added two new tests to their repertoire. The new test methods are the Shore hardness test for lining material, and the bond strength test for lining on denture base materials.
read moreToxicity testing of composites
None of the tested composite materials was deemed less safe to use than the others, a recent report from NIOM concluded. The release of monomers from the different composites was similar. Initial cytotoxicity screening of extracts of the materials indicated some differences between the products. However, further evaluations could not verify a cytotoxic potential.
read moreNIOM webinar: Recommended use of fluoride
In this 20 min webinar NIOM Senior Scientist Aida Mulic will present the recommendations for use of fluoride to combat the most common oral diseases, dental caries and dental erosions.
read moreNEWSLETTERS
Restorative materials for severely affected primary molars
Reduced follow-ups and increased cost effectiveness were best obtained using preformed metal crowns (PMCs) in children with severely affected primary molars at high caries risk. This is the conclusion of a collaboration study between the City of Helsinki and NIOM.
read more
Be proactive: pointers for safe and effective physical protection in the clinic
There is no doubt that the most serious health risk to dental staff is due to infection by microorganisms such as viruses and bacteria. In addition there are other hazards that pose a health risk and require physical protection.
read more
Gap settings matters
In a recent investigation from University of Oslo and NIOM, none of the three-unit bridges produced with different CAD/CAM systems attained the nominal settings for the cementation gap. The measured gaps were up to twice the sizes set in the CAD-software.
read more
NIOM adds Shore hardness and bond strength characterization to its test repertoire
NIOM has added two new tests to their repertoire. The new test methods are the Shore hardness test for lining material, and the bond strength test for lining on denture base materials.
read more
Toxicity testing of composites
None of the tested composite materials was deemed less safe to use than the others, a recent report from NIOM concluded. The release of monomers from the different composites was similar. Initial cytotoxicity screening of extracts of the materials indicated some differences between the products. However, further evaluations could not verify a cytotoxic potential.
read more
NIOM webinar: Recommended use of fluoride
In this 20 min webinar NIOM Senior Scientist Aida Mulic will present the recommendations for use of fluoride to combat the most common oral diseases, dental caries and dental erosions.
read morePUBLICATIONS
Nrf2 Signaling and Cytoprotection in Human Epithelial Airway Cells Exposed to HEMA
Methacrylates are common constituents of resin-based biomaterials. These materials cure by polymerization of methacrylate monomers, but incomplete polymerization causes leakage and patient exposure to the electrophile monomers.
Lysherding – så enkelt og så vanskelig.
For kort herdetid kan føre til mangelfull herding (polymerisasjon) av komposittmaterialer. For lang herdetid kan øke risiko for varmeskade på oralt bløtvev og pulpa. Herdelampens lysstyrke (irradians) reduseres når avstanden øker mellom lysutgangen og materialflaten.
For å opprettholde lysdosen som kreves for tilstrekkelig herding, må herdetiden økes. Kortere lysherdingstider enn omtrent 10 sekunder kan føre til utilstrekkelig herding av materialet.
Side effects of chemical compounds used in dental clinics
The work at a dental clinic implies getting in contact with different chemical substances, which may cause temporary or permanent injury to the staff, primarily allergic reactions, but also local irritation, carcinogenic or toxic effects. Dentists and dental assistants belong to the professional groups most frequently experiencing work-related eczema.
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.