Bioclear is an interesting concept, but I'm leary about the proximal bonding to the occlusal. Does this present problems?

-- Kenneth

Dear Kenneth,

Great question. We have had no problems placing composite next to freshly cut composite, especially freshly placed composite. We treat it just like enamel.

I am far more concerned about creating ideal shapes to control C factor and this is a very nice way to accomplish that, and to be able to create ideal rounded profiles, good solid contacts and well sealed gingival margins. Those things I worry about.
In fact, most of the composites on the market other than 3M Filtek Supreme Plus are actually made from chunks of pre-polymerized composite that are essentially ground up and then remanufactured/remixed with thinner composite. That is how the fumed silica based composites are able to get such high filler content. The 3M product has a robust patent on their zirconia filler system, and are able to pack more filler without having to grind and re-mix.

Regardless, we have seen nearly perfect results on follow up. I will cc to my friends at 3M to see if they have anything further to add.

Warm regards,
David