Why do we use fuji liner and how does it work?

[Dental916]

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I know its a thermal insulator...but is that all it does? Also how does it do it? Just curious on your thoughts.

 

[charlestweed]

I think the compressive strength of the fuji glass ionomer is similar to that of the natural dentin. The fuji cement also gives the prep a nice flat pulpal floor, which provides better and more even support (compared to an uneven pulpal floor) for the amalgam/composit restoration. That’s what I remember from the operative class that I took many years ago….I might be wrong.

 

[crazy_sherm]

GI seals better than composite or amalgam since it is a chemical bond as opposed to a mechanical one. You also don't need to etch/prime/bond, making it less technique sensitive and eliminates the risk of over-drying the demineralized dentin. Since the GI is used as a liner, it's not exposed directly to the oral cavity and won't wash out like a GI restoration that is filled all the way to the cavosurface.