Deterioration of direct restorative materials under erosive conditions with impact of abrasion and attrition in vitro -

This article compare the cumulative impact of sequential wear on mechanical properties and appearance of a composite resin, a glass ionomer, and a glass hybrid. It was concluded that the composite resin was the most mechanically resistant to the sequential wear

Komposittmaterialer – utlekking av monomer og cytotoksisitet -

NIOM har på oppdrag fra Helsedirektoratet undersøkt fire komposittmaterialer: ett Own Brand Label (OBL)-materiale, to bulk-fill materialer og et mye benyttet universalmateriale. Det ble funnet ubetydelige forskjeller i utlekket monomer mellom produktene. I en cytotoksisitets-screening med ekstrakter fra produktene var det noe forskjell mellom materialene. Ytterligere molekylærbiologiske undersøkelser viste imidlertid ingen indikasjon på celleskade. Basert på disse undersøkelsene kan ingen av produktene bedømmes som mindre sikre enn de andre.

The effect of short curing time on chemical and mechanical properties of the composites -

The latest LED dental curing devices claim sufficient curing of restorative materials with short curing times. This study evaluates mechanical and chemical properties as a function of curing time of two commercial composite filling materials cured with three different LED lamps.

Effect of short LED lamp exposure on wear resistance, residual monomer and degree of conversion for Filtek Z250 and Tetric EvoCeram composites. -

The latest LED dental curing devices claim sufficient curing of restorative materials with short curing times. This study evaluates mechanical and chemical properties as a function of curing time of two commercial composite filling materials cured with three different LED lamps.

Contemporary tooth-coloured filling materials -

Tooth-coloured materials dominate restorative treatments in the Nordic countries today. The most recent developments have concentrated on monomers and filler particles. The present article discusses the composition of and results from laboratory studies on contemporary materials with specific focus on nanocomposites and the clinical relevance of laboratory studies. Furthermore polymerization by LED light curing units and the risk of release of hormone-like chemicals from composites are briefly discussed.