Abstract
This study investigated the effect of Phenyl-P dissolved in 30% HEMA primer on the restoration of shrunken demineralized dentin and improving the monomer permeability.
Light cure resin was bonded to demineralized dentin treated with primers. The priming periods required for an aqueous solution of 30% HEMA could be decreased from 10 min to 1 min by dissolving 1% Phenyl-P in the solution. Phenyl-P was effective for restoring the collapse demineralized dentin in shorter periods. Intact dentin contiguous with the etched dentin was demineralized by Phenyl-P in primer, which made the hybridized dentin layer thicker than the previously demineralized dentin layer.
