Welcome to NIOM

Dear clients

We would like to inform you that NIOM is operational and carrying out scheduled test activities. We support, and follow, the national guidelines regarding the COVID-19 outbreak. Precautions are taken to ensure sustainable safeguards for our staff members and activities.

Dear dental teams
Our services are operational. You may continue to direct any clinically relevant questions regarding use and selection of dental materials to us. As the Nordic competency center of dental materials, we are here to help.

Any changes caused by the current situation will be posted on our website.

NEWS

Coronavirus – measures taken by NIOM

Coronavirus – measures taken by NIOM

NIOM support and follow the national guidelines regarding the COVID-19 outbreak. We have taken the recommended precautions to ensure the safety of our people while staying operational, and carrying out scheduled test activities.

New Swedish guest researcher

New Swedish guest researcher

Julia Olander is currently a guest researcher at NIOM. Read about her experience, and why she chose to bring her family with her to Oslo.

NEWSLETTERS

Faulty bond strength measurements?

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.

read more

How to talk to fluoride sceptics

As recent news articles highlight the dangers of ski wax containing fluorinated compounds, more patients are becoming skeptical towards fluoride in toothpaste. It is vital to be clear that these are two completely different forms of fluorine element with respect to both toxicity and reactivity.

read more

From the instrument park: The Zwickline test instrument

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.

read more

New scanning electron microscope

NIOM have 17 laboratories, and a vast, up- to date instrument park. Today we would like to highlight our new key instrument in materials research, nicknamed the SEM.

read more

NEWSLETTERS

Faulty bond strength measurements?

Faulty bond strength measurements?

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.

read more
How to talk to fluoride sceptics

How to talk to fluoride sceptics

As recent news articles highlight the dangers of ski wax containing fluorinated compounds, more patients are becoming skeptical towards fluoride in toothpaste. It is vital to be clear that these are two completely different forms of fluorine element with respect to both toxicity and reactivity.

read more
From the instrument park: The Zwickline test instrument

From the instrument park: The Zwickline test instrument

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.

read more
New scanning electron microscope

New scanning electron microscope

NIOM have 17 laboratories, and a vast, up- to date instrument park. Today we would like to highlight our new key instrument in materials research, nicknamed the SEM.

read more

RESEARCH

Read about our research activities.

PUBLICATIONS

Restorative material choices for extensive carious lesions and hypomineralisation defects in children: a questionnaire survey among Finnish dentists

This survey shows that Finnish dentists are rather homogeneous in their treatment decisions when managing primary tooth caries or a severely affected MIH tooth, although some practices vary between general and specialised dentists. Moreover, the disparity in treatment practices between different areas of Finland is evident. The proportion of SSC as a material choice was low. Patient co-operation plays a big role in treatment decisions and may explain why GICs were the most popular choice for restoring extensive primary tooth caries. The emphasis should be on behavioural management as well as on the evidence-based treatment recommendations.

Effect of thermal cycling on temperature changes and bond strength in different test specimens

There is no generally accepted protocol for resin composites that simulates and accelerates ageing of the materials under oral conditions. Even though thermal cycling is one of the procedures used to seriously try to simulate physiological aging of restorative materials, review of the literature on thermal cycling procedures shows that there is little or no consistency in protocols and variables. This makes it difficult to compare results from the various investigations. Selection of variables like size of specimens, storage time, and dwell times in water baths, transfer time and number of cycles, appear to be selected by investigators mostly based on convenience rather than referenced observations or scientifically founded facts

Aquaporins’ Influence on Different Dental Erosive Wear Phenotypes in Humans.

Dental erosive wear is a multifactorial condition of high prevalence. Nowadays, there is an emphasis on discovering individual genetic predisposition for the development of this condition. Aquaporins (AQPs) are water channel proteins expressed in salivary glands, as well as during tooth development. They are involved in salivary secretion and composition and linked to physiological protection of the oral cavity.
The aim of this study was to explore the relationship between different dental erosive wear phenotypes, AQP genes, and selected environmental factors.

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.