| http://www.w3.org/ns/prov#value | - This results in no bonding, or weak bonding, with a material such as Prime & Bond NT in its light-cured version showing a bond strength of 0 MPa.31 Some adhesive systems such as OptiBond Solo Plus require a dual-cure activator, which is a resin-free benzene sulphinic-acid/sodium salt solution, which will raise the acidic pH of the oxygen-inhibited layer in order to bond to self-cured/dual-cured pr
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