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
Webinar on forensic odontology on April 27th
Join our webinar on April 27th to hear about dental identification work. Our experts talk about international work, cold cases and how you may one day become involved.
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
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
Significant health risks of using snus while pregnant
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.
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.
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.
Preferred treatment option of severely destroyed primary molars and hypomineralisation defects in children
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.
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.
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.
NEWSLETTERS
Significant health risks of using snus while pregnant
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.
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.
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.
Preferred treatment option of severely destroyed primary molars and hypomineralisation defects in children
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.
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.
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.
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.