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My 2 Cents on All-Bond Universal

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All-Bond Universal is a light-cured single-component dental bonding agent that combines etching, priming and bonding in one bottle. It?s an ethanol/water-based agent that bonds to dentin and cut and un-cut enamel. It?s fully compatible with light-cured, self-cured and dual-cured composite materials. It can be used for the total-etch, self-etch, and selective-etch bonding of both direct (e.g. resin-based composite, resin-modified glass ionomers, core build-ups, etc.) and indirect (metal, glass ceramics, zirconia/alumina, etc.) restorations, with or without phosphoric acid etchant. Other applications include desensitization/sealing, intraoral repair (e.g. chipped porcelain, additions to direct restorations, etc.), and as a protective varnish for glass ionomer restorations.
Other than the wide range of indications and technique choices, I have a few personal favorite features that have been particularly beneficial in my practice.  All-Bond Universal has a low film thickness?less than 10µm so it doesn?t affect cementation procedures, even with tight-fitting crowns.  If there is no enamel present I do not etch and just place a few coats on the preparation, remove the solvent by air thinning and use either a light cured or dual cured resin cement.  For direct composite restorations, I will etch the enamel and place my resin. In terms of convenience, I can store All-Bond Universal at room temperature without refrigeration and I don?t need an additional activator. That said, however, if I need to use a selective etch/hybrid technique, Bisco does offer a separate high-viscosity phosphoric acid etch, Select HV Etch with BAC. Overall, All-Bond Universal has worked quite well with no post operative sensitivity
There are some important chemistry features that make All-Bond Universal so versatile. Briefly, it contains MDP monomers (for a strong AND durable bond to indirect materials), has a mildly acidic pH of >3 (for compatibility with dual- and self-cured composite cores and resin cements), and is hydrophobically resin-friendly (optimizing the seal and dramatically reducing post-op sensitivity).
Although I have always been a total etch advocate and will always etch enamel if it is present, All Bond Universal has also worked well in my practice for the cases when there is no enamel present and I want to achieve a high bond strength to dentin.  My own preliminary dentin bonding tests done with Dr Marcos Vargas have shown very nice bond strengths to dentin.  I have always been very slow to jump on the all in one band wagon of adhesives, but I do trust Bisco in making products that produce excellent clinical results. 

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