Efficacy of a self-etching dentin primer composed of TEGMA and phenyl-P

The purpose of the present study was to evaluate the efficacy of an experimental self-etching dentin

primer composed of TEGMA and phenyl-P using primary and young permanent teeth. The efficacy of

the self-etching dentin primer was evaluated by measuring the wall-to-wall polymerization contraction

gap width and the shear bond strength to the flat dentin surface.The contraction gap formation was prevented

completely in the specimens primed with the 35 vol% TEGMA and 20% phenyl-P for 30 sec.

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