Open material 3D-printer improves testing

August 21st 2019

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3D-printers open up exciting new fields of research, treatment and testing. This makes one a natural acquisition for NIOM’s instrument park. Read more about which printer we chose, and why.
Effect of methacrylated chitosan incorporated in experimental composite and adhesive on mechanical properties and biofilm formation

, , and | February 19th 2019

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The results of this study show that CH-MA (CH-MA) may be incorporated into a composite and into an adhesive to reduce biofilm formation on their surfaces. The mechanical properties of the composite were challenged, but flexural strength measurements still met the requirement set in ISO 4049, whereas no differences were observed for the bonding properties of the adhesives.

Effect of methacrylated chitosan incorporated in experimental composite and adhesive on mechanical properties and biofilm formation.

, , and | November 29th 2018

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The results of this study show that methacrylated chitosan (CH-MA) may be incorporated into a composite and into an adhesive to reduce biofilm formation on their surfaces. The mechanical properties of the composite were challenged, but flexural strength measurements still met the requirement set in ISO 4049, whereas no differences were observed for the bonding properties of the adhesives.
Presence and leaching of bisphenol a (BPA) from dental materials

, , , , , and | May 28th 2018

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BPA has been reported to leach from some resin-based dental restorative materials and materials used for orthodontic treatment. To confirm and update previous findings, especially in light of the new temporary lower threshold value for tolerable daily BPA intake, leaching of BPA from 4 composite filling materials, 3 sealants and 2 orthodontic bonding materials were investigated.
NIOM adds Shore hardness and bond strength characterization to its test repertoire

March 18th 2018

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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.