Gold inlays are a good treatment option for posterior teeth -

These are the conclusions from a recent retrospective, practice-based study conducted by Institute of Clinical Dentistry, University of Oslo and NIOM.

Killing biofilm – mission impossible? -

What are the strategies and methods you as a clinician can use to minimize or manage this problem og caries and other infectious diseases in the oral cavity? Attend this webinar and learn more about it!

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.

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.

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.

Concentration of eluted monomers from the composites, in microgram per square centimeter surface area.
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.

CAD/CAM-produced three-unit bridges.
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.

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.

Daily use of antimicrobials? -

Scientist at NIOM in collaboration with scientists from the University of Oslo, contributed with lectures at the annual Norwegian Dental Association Convention.

Use of fluoride as caries prophylactic does not pose a health risk -

Fluoride skepticism “FluUro”. The use of fluoride as caries prophylactic does not pose a health risk, Professor Jon E. Dahl, stated at the annual convention for the Norwegian dental association. He discussed the kinetics and the general toxicity of applied fluoride.

Dental erosive wear – a growing problem in the Nordic countries -

The data analysed in the study indicated both wide prevalence and high severity of dental erosion among adolescents. The authors stress the importance of information, early and effective diagnostics and implementation of prevention strategies.

Improved micro-tensile strength test reveals key to successful repair of restorations -

A more reliable and less time-consuming test method to evaluate the micro-tensile strength of the repair bond between old and new composites has recently been published. The improved test method is based on studies carried out previously at NIOM.

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.

Standardization and patient safety – ensuring that dental materials are safe and effective -

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.

Nylon dentures may be a good alternative -

Polyamide, or nylon, is an alternative material for removable dentures. They do not release allergens and have acceptable water sorption. Nylon dentures are thus promising, although they still lack clinical documentation.

Essentials of dental bonding -

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 daily basis, Frode Staxrud’s main research interests concentrates on clinical dentistry; in particular phenomena concerning “Minimal […]

Occupational hazards in dental clinics -

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.

Hardness testing of dental materials and tooth substance -

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.

Forty-five anniversary – and many more to come! -

Lisbeth Normann, Secretary to the minister of Health and Care Services, officially opened NIOM’s 45th anniversary seminar. Her speech centred on the establishment of NIOM in 1972, the changing dental health situation since then and the role of dental health in Nordic and European perspective in the time to come.

Research for patient safety -

The Nordic seminar entitled “45 Years of Research for Patient Safety” (Forskning og pasientsikkerhet i 45 år) was organized by NIOM on behalf of the Ministry of Health and Care Services. The seminar on May 8th and 9th marked the Norwegian presidency of the Nordic Council of Ministers in 2017 and the 45th anniversary of NIOM.

Substantial variations in light curing procedures -

Reported data is scarce on light curing times of restorations and irradiance of the curing devices used. In this study we sought to improve the knowledge of such parameters as total light dose applied to a restoration layer and the total potential exposure to reflected light to the dentist’s eyes during a workday.

Vacant position as visiting scientist at NIOM during 2018 -

Positions as visiting scientist in the field of biomaterials research are offered at the Nordic Institute of Dental Materials, NIOM, in Oslo, Norway.

The oral microflora – a reservoir of antibiotic resistance genes? -

The increase in antibiotic resistant bacteria calls for conscious antibiotic prescription which should be restricted to evidence-based knowledge of their usefulness to the patient.

Success in light curing -

Welcome to our webinar on May 30th. In this webinar our Head of Laboratory, Hilde M. Kopperud, will present topics on light curing techniques and discuss how to avoid pitfalls when buying a new curing lamp.

Repair or replace -

Repair is the best treatment for defective restorations, most dentists in Norway argue. In a questionnaire study from NIOM and University of Oslo, up to 90 % of the respondents favoured repair rather than replacement of the restoration.

En nordisk møteplass for materialkunnskap gjennom 45 år -

2017 har Norge formannskapet i Nordisk Ministerråd samtidig som det er 45 år siden NIOM ble etablert. Dette markeres med seminaret Forskning og pasientsikkerhet i 45 år.

New standards for digital impressions -

CAD/CAM and 3-D printing have arrived with full force in dentistry. NIOM is leading the work to secure standards for scanning accuracy.

New high sensitivity analytical instrument at NIOM -

NIOM has recently acquired a high sensitivity ultra-high performance liquid chromatography mass spectrometry (UHPLC-MS) instrument.

Toxicity of monomers -

The term “resin-based dental materials” refers to dental materials containing polymers, like composites, adhesives, cements and denture base material. Usually, these polymers are formed by in situ polymerization of methacrylate monomers.

NIOM brings you one step closer to product certification -

Closing the gap between product development and product certification is easy when you present an independent test report from NIOM.

NIOM at Nordic annual dental meetings 2016 -

NIOM toured the Scandinavian annual dental meetings in 2016.

Merry Christmas and Happy New Year! -

Thank you for your collaboration in 2017. We look forward to a fantastic new year!

Are antibacterials necessary in caries prophylaxis? -

Antibacterials should not be administered routinely for caries prophylaxis, but rather only when conventional plaque control is likely to be ineffective. There are many different antibacterial agents on the market, but there are few agents with an evidence-based long-term anticaries effect.

The new real-time polymerase chain reaction detection system at NIOM -

The real-time polymerase chain reaction (PCR) detection system opens up new possibilities for research at NIOM. The instrument has several applications including identification of single nucleotide polymorphism, identification and quantification of microorganisms from different samples and investigations of gene expression in mammalian cells and bacteria.

Magnification loupes and light curing
Magnification loupes and light curing -

A recent evaluation has revealed that the use of magnification loupes does not increase the risk of eye damage associated with light exposure from curing lamps. However, light curing does require the use of eye protection.

Metallic materials for fixed and removable restorations and appliances -

The international standard ISO 22674 Dentistry – Metallic materials for fixed and removable restorations and appliances, has been revised and published in a second edition in 2016, after the first release in 2006. The standard classifies metallic materials suitable for the fabrication of dental restorations and appliances.

Approximal fillings increase the caries risk -

Placing a Class II composite restoration makes it five times more likely to require a restoration in the sound adjacent surface in the near future.

New confocal laser scanning microscope -

A new confocal laser scanning microscope (CLSM) system FV1200 from Olympus opens new possibilities for high-quality imaging of biological and material samples at NIOM.

Interactions of liposomes with dental materials -

Liposomes are nanosized vesicular structures that are well-recognized for their function as drug delivery systems. The surface charge of the liposomes seems to be the main determinant in the immediate interaction between liposomes and dental restoratives.

Quality of medical devices used in dentistry -

The longevity and efficacy of dental restorative procedures is to a great extent related to the quality of the products used. The quality and use of medical devices has a direct impact on health issues and health economics.

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