Lack of durability -- composite fillings wear out sooner than amalgam fillings (lasting at least five years compared with at least 10 to 15 for amalgams); in addition, they may not last as long as ...

Now, in an in vitro study, researchers from Kings College London Dental Institute at Guy's Hospital in the U.K. have compared two means of selectively removing resin composite material from an enamel ...

Abrasion: Tooth wear caused by improper brushing or excessively forceful use of toothpicks or floss. ... old composite restorations and superficial stains and discolorations, ...

Researchers wanted to see which CAD/CAM composites for molars were hardest and held up best after toothbrush abrasion testing. After putting six composites through rigorous testing, they discovered ...