I have used Brush and Bond from Parkell for almost 3 years with practically ZERO post-op sensitivity. It is a single bottle, self-etch adhesive. According to their literature, Parkell does not feel that etching is necessary with their product, so I haven't etched in about two years. In their newsletter, they say if you do etch, that only enamel should be etched so that the dentin is not dessicated which would prevent the hydrophyllic Brush and Bond from creating a hybrid dentin-adhesive layer. They have also spoken rather negatively about curing Brush and Bond, flowable, and paste at the same time. They recommend separate cures. So my question is: Do you feel a self-etch adhesive like Brush and Bond is a good product to use for your technique (injection molded fills)? I have no problem going to etch-optibond, but I do love the fact that nobody comes back with complaints after using Brush and Bond.
DR CLARK'S RESPONSE
The short answer is that the Parkell product is excellent for dentin and for sensitvity but your enamel bond is good, not great. Your ability to bond past the margins on uncut enamel is mediocre. If you have enamel margins, try it my way for a while. If you have mostly dentin, such as a crown build-up, stick with Parkell self etch. Most of the opinion leaders would agree.
If you are really in love with Parkell, you could etch just the enamel, use Brush and Bond on the dentin, cure, then use Opitbond Solo Plus which is compatible with the chemistry of Brush and Bond for the injection molding portion. Hey we all have our 'warm blankeys' that we trust.
I think that Parkell is mostly concerned about not curing the resin first on the dentin. They are probably not yet aware of this technique where we cure two coats on the dentin then apply a third coat that acts as a wetting agent. I have worked with the bigger companies and tested the technique. I will give the Parkell folks a call when I get a chance.
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