The World Health Organization (WHO) has called for the development of alternative antibacterial methods. In response to this, a team involving three NIOM scientists have investigated endogenous compounds and biopolymers.

Erosive tooth wear is a growing problem. While the causes are many, from increased consumption of soda and acidic food, we now know that genes play a role too. A recent NIOM study looks delves into the subject matter.

The use of cobalt in dental devices as crowns, bridges and removable partial prosthesis have now raised concern as cobalt is classified as a CMR (Carcinogenic, Mutagenic, toxic to Reproduction) substance, says Jon E. Dahl, CEO at NIOM.

A recent study showed increased antimicrobial activity of three endodontic sealers after chlorhexidine contact. Cell toxicity and physicochemical properties were mostly negatively affected.

A recent NIOM-study looked at the reliability of using “Universal bonding agents” in composite-to-composite shear bond strength test. It is worth noting that all nine bonding agents in the study performed as well, or better, than the previous “Gold Standard”, the 3-step etch-and-rinse bonding agent.

Killing off bacteria by using light on a thin film covering, sounds intriguing to say the least. The possibilities would be endless, from restorations to self-cleaning environmental surfaces, and on. A collaborative team from NIOM and the University of Oslo (UiO) is currently making strides in this direction.

Feeling of dry mouth, often called xerostomia, is not considered a serious medical condition in itself, but it can cause complications like tooth decay and mouth sores. Treating it is therefore imperative for good oral health. A recent paper explores electrostimulation as a treatment option.

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.

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.

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.

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 can accomplish more together than apart. That […]

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.

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.

The high prevalence of dental erosion and dental caries among certain groups, and observations that not all individuals appear to be at risk, has sparked research on genetic effects related to these conditions.

Several pre-cementation procedures advocate enhancing adhesion between zirconia and resin-based cements. There is, however, limited documentation on how these pre-treatments affect the strength of high translucent zirconia.

While stainless-steel crowns (SSCs) are recommended for restorative treatment of teeth severely affected by caries, fractures or dental developmental disorders, they are not widely used. A new NIOM study among Norwegian and Finnish dentists explores why.

Blue light beams at us during procedures at the clinic, from the screens we watch between patients, and from our ever present mobile phones. Recently we have seen cosmetic companies selling creams marketed towards blue-light damage. But can blue light really damage the skin, and if so- how?

The dental community has long been fascinated by the thought of growing a third set of teeth. According to Nils Jacobsen and colleagues’ recent overview article on the subject, the past 40 years of research has seen great strides towards this goal. There have been several key breakthroughs, based heavily on knowledge acquired in stem cell research.

Professor Nils J. Jacobsen passed away on Easter Sunday, the 4th of April. His legacy after almost 70 years in the field of odontology is significant. His last article was published less than three weeks ago.

Young men are most at risk as carbonated soft drinks wear down young adult’s teeth. In a new questionnaire-based study performed in Denmark, almost all the respondents blamed erosive tooth wear in young adults on carbonated soft drinks.

A new NIOM study found the toxic compound naphthalene in a charcoal toothpaste, raising questions about the safety of such products.

The truly unusual year 2020 is drawing to a close. NIOM’s services have been operational throughout the year thanks to our dedicated staff.

A recent NIOM study revealed several irregularities in single dental crowns. The PFM or porcelain-fired-on-metal crowns had been ordered from laboratories both within and outside of Norway.

The choice of cell line is of no small matter when conducting in vitro studies. A recent NIOM study has shown how differently five cell lines reacted, although consistently so, when testing for their interaction with two methacrylates. The message is that the choice of cell line will largely affect the results obtained.

A recent study tested the behaviour of cobalt-chromium alloys under corrosive conditions mimicking the acidity observed in oral biofilm. Cobalt-chromium has become the alloy of choice for the framework of porcelain-fixed-to-metal (PFM) prosthetics also in combination with titanium implants. The alloy specimens were fabricated by both traditional casting, by milling and by laser melting and sintering.

It is with the greatest appreciation we, his colleagues at NIOM, wish dr. odont Arne Hensten a long and healthy retirement. He has been our “grand old man”, tirelessly accumulating and sharing knowledge since he was first employed with us as a researcher in 1974.

A new study on protein profiles in saliva show unexpected promise. The results point to the possibility that the presence of certain proteins can protect against erosive tooth wear.

In 2014, the Norwegian Ministry of Health and Care Services published a white paper on the status of oral health research in Norway. The white paper emphasised that there were too many small research groups in the country, they focused on too many diverse subjects, and there was too little national and international collaboration.

NIOM’s new cycling device simulates the exposure of different drinks on dentition and dental materials. By combining the effects of saliva, abrasion and tooth brushing, the researcher can simulate a clinically relevant environment.

Cobalt-chromium (Co-Cr) alloys are becoming more and more popular with the rise of milling technology. This makes it more important than ever to make sure that dental restorations based on these materials are safe for patients

Read about how covid19 is affecting NIOM this summer and fall. Our offices will remain open all summer, though response time may vary.

Dentists often see patients with developmental defects in tooth enamel. The characteristically white, brown or yellow stains are present from when the tooth first erupts. But, how common are these defects?

A novel fast-setting calcium silicate cement with fluoride, intended for root fillings, shows promising results on bond strength to dentine.

A novel fast-setting calcium silicate cement with fluoride, intended for root fillings, shows promising results on bond strength to dentine.

The European commission has approved additional Guidelines on phthalates that are carcinogenic, mutagenic, or toxic to reproduction (CMR), or have endocrine-disrupting (ED) properties. NIOMs Head of laboratory Dr. Hilde M. Kopperud is among the experts behind the new guidelines, which complement the legal documentation to the MDR.

An increased risk of stillbirth, preeclampsia, and oral cleft malformations, are among risks of using Swedish snus while pregnant. Read more about the report here.

There is published literature supporting the use of stainless steel crowns (SSC) for severely destroyed primary molars and hypomineralisation defects in children. However, until now, little is known about the dentists` preferences in this area. A newly published paper by NIOM and collaborators holds the answer.

The most commonly used bonding stress method for testing adhesives and cement, the thermal cycling, jeopardizes the results if not done with caution. This leads to a more favorable bond strength than the true value.

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.