Abstract
We have reported that 4-META/MMA-TBB resin shows high tensile bond strength to enamel and dentin, because the resin easily penetrates the tooth substrates.Tensile bond strength to sintered hydroxylapatite, fluoroapatite, and their mixture with 4-META/MMA-TBB resin was measured in order to assess the relation 4-META and hydroxylaptite.Higher tensile bond strength was obtained for the apatites that have rougher surfaces.The bond strength increased by the pretreatment which leached more Ca2+.The best pretreatment solution was 10-3, and the date suggested that ferric ion promotes the curing of the resin on the surface.It was found that 4-META/MMA-TBB resin contains 4-MET derived from 4-META, and 4-MET was taken up by apatites.4-META had good effects on the penetration of resin monomer to the roughened surface of apatite.
